oj.uz

답안 #919730

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
919730 2024-02-01T14:54:26 Z andrei_iorgulescu Maze (JOI23_ho_t3) C++14
86 / 100
 2000 ms 322188 KB 
#include <bits/stdc++.h>

using namespace std;

int inf = 1e9;
int dl[] = {-1,0,1,0};
int dc[] = {0,1,0,-1};

int r,c,n;
int xs,ys,xf,yf;
vector<vector<char>>a;
vector<vector<int>>d;
vector<pair<int,int>>new_cells;
vector<pair<int,int>>cells;
vector<set<int>>s,ss;

void dfs(int x,int y)
{
    //cout << "sus" << x << ' ' << y << endl;
    for (int i = 0; i < 4; i++)
    {
        int nx = x + dl[i],ny = y + dc[i];
        if (nx >= 1 and nx <= r and ny >= 1 and ny <= c and d[nx][ny] == inf and a[nx][ny] == '.')
        {
            d[nx][ny] = d[x][y];
            s[nx].erase(ny);
            ss[ny].erase(nx);
            cells.push_back({nx,ny});
            dfs(nx,ny);
        }
    }
}

int dgl;

void orizontala(int x,int y1,int y2)
{
    //cout << "h" << x << ' ' << y1 << ' ' << y2 << endl;
    while (true)
    {
        auto it = s[x].lower_bound(y1);
        if (it == s[x].end() or *it > y2)
            return;
        d[x][*it] = dgl;
        new_cells.push_back({x,*it});
        s[x].erase(*it);
        ss[*it].erase(x);
    }
}

void verticala(int y,int x1,int x2)
{
    //cout << "v" << y << ' ' << x1 << ' ' << x2 << endl;
    while (true)
    {
        auto it = ss[y].lower_bound(x1);
        if (it == ss[y].end() or *it > x2)
            return;
        d[*it][y] = dgl;
        new_cells.push_back({*it,y});
        ss[y].erase(*it);
        s[*it].erase(y);
    }
}

void baga(int x,int y)
{
    //cout << "bagat" << ' ' << x << ' ' << y << endl;
    dgl = d[x][y] + 1;
    if (abs(x - xf) <= n and abs(y - yf) <= n and abs(x - xf) + abs(y - yf) < 2 * n)
    {
        d[xf][yf] = min(d[xf][yf],1 + d[x][y]);
        return;
    }
    int x1 = x - n,x2 = x + n,y1 = y - n,y2 = y + n;
    ///teoretic pot tot patratul (x1,y1,x2,y2) fara colturi, daca ies din matrice ayaye
    ///pot sa iau intersectia dreptunghiurilor (x1,y1,x2,y2) cu matricea si daca e tai colturile
    x1 = max(x1,1);
    x2 = min(x2,r);
    y1 = max(y1,1);
    y2 = min(y2,c);
    //cout << x1 << ' ' << x2 << ' ' << y1 << ' ' << y2 << endl;
    if (x1 != x - n)
        orizontala(x1,y1,y2);
    else
    {
        int y1r = y1,y2r = y2;
        if (y1 == y - n)
            y1r++;
        if (y2 == y + n)
            y2r--;
        orizontala(x1,y1r,y2r);
    }
    if (x2 != x + n)
        orizontala(x2,y1,y2);
    else
    {
        int y1r = y1,y2r = y2;
        if (y1 == y - n)
            y1r++;
        if (y2 == y + n)
            y2r--;
        orizontala(x2,y1r,y2r);
    }
    if (y1 != y - n)
        verticala(y1,x1,x2);
    else
    {
        int x1r = x1,x2r = x2;
        if (x1 == x - n)
            x1r++;
        if (x2 == x + n)
            x2r--;
        verticala(y1,x1r,x2r);
    }
    if (y2 != y + n)
        verticala(y2,x1,x2);
    else
    {
        int x1r = x1,x2r = x2;
        if (x1 == x - n)
            x1r++;
        if (x2 == x + n)
            x2r--;
        verticala(y2,x1r,x2r);
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> r >> c >> n >> xs >> ys >> xf >> yf;
    a.resize(r + 1);
    s.resize(r + 1);
    ss.resize(c + 1);
    for (int i = 1; i <= r; i++)
    {
        for (int j = 1; j <= c; j++)
        {
            s[i].insert(j);
            ss[j].insert(i);
        }
    }
    for (int i = 1; i <= r; i++)
    {
        a[i].resize(c + 1);
        for (int j = 1; j <= c; j++)
            cin >> a[i][j];
    }
    d.resize(r + 1);
    for (int i = 1; i <= r; i++)
        d[i].resize(c + 1);
    for (int i = 1; i <= r; i++)
        for (int j = 1; j <= c; j++)
            d[i][j] = 1e9;
    new_cells.push_back({xs,ys});
    d[xs][ys] = 0;
    s[xs].erase(ys);
    ss[ys].erase(xs);
    while (true)
    {
        //cout << endl;
        //for (auto it : new_cells)
          //  cout << "nc" << ' ' << it.first << ' ' << it.second << ' ' << d[it.first][it.second] << endl;
        cells = new_cells;
        for (auto it : new_cells)
            dfs(it.first,it.second);
        new_cells.clear();
        for (auto it : cells)
            baga(it.first,it.second);
        if (d[xf][yf] != inf)
            break;
    }
    cout << d[xf][yf];
    return 0;
}

/**
din (i,j) pot merge ori intr-un vecin care e si el alb
as mai putea merge in patratul de latura 2n + 1 centrat in (i,j) fara colturile lui
acum, faza funny e ca nu prea ma intereseaza de mersul inauntrul formei ci doar pe marini, unless este celula de finish in interior
asa ca, ori e celula de finish in interior si zic direct gen "boss, dute in aia", ori pun cu cost + 1 celulele de pe margini
acum, ca sa gasesc celulele de pe margini nevizitate inca, trebuie doar sa vad pe niste bucati de linii / coloane care mai sunt alive
asta pot cu un set, dar cu constanta aia :skull: mai bine nu, deci bag aib si cb pe aib

Acum, cum imi fac dfs-ul ca sa nu iasa nimic dubios
In etape, cat timp n-am ajuns la finish, mai intai imi iau celulele cu care n-am trecut prin faza 1 si le dau fill cat au in jur 0
Iar in faza 2 iau celulele care n-au trecut prin faza asta si le fac kinda patratul, iau alea de pe margini etc
**/

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 26 ms 6232 KB Output is correct
20 Correct 21 ms 7004 KB Output is correct
21 Correct 36 ms 13232 KB Output is correct
22 Correct 29 ms 6712 KB Output is correct
23 Correct 25 ms 6236 KB Output is correct
24 Correct 25 ms 9304 KB Output is correct
25 Correct 24 ms 9052 KB Output is correct
26 Correct 16 ms 6488 KB Output is correct
27 Correct 14 ms 6696 KB Output is correct
28 Correct 20 ms 6488 KB Output is correct
29 Correct 81 ms 15444 KB Output is correct
30 Correct 22 ms 8024 KB Output is correct
31 Correct 83 ms 32496 KB Output is correct
32 Correct 86 ms 15444 KB Output is correct
33 Correct 76 ms 15440 KB Output is correct
34 Correct 69 ms 22532 KB Output is correct
35 Correct 71 ms 22348 KB Output is correct
36 Correct 68 ms 15620 KB Output is correct
37 Correct 87 ms 15800 KB Output is correct
38 Correct 48 ms 15440 KB Output is correct
39 Correct 1223 ms 150308 KB Output is correct
40 Correct 55 ms 17744 KB Output is correct
41 Correct 66 ms 27472 KB Output is correct
42 Correct 125 ms 21840 KB Output is correct
43 Correct 105 ms 30324 KB Output is correct
44 Correct 311 ms 80392 KB Output is correct
45 Correct 320 ms 87888 KB Output is correct
46 Correct 1080 ms 320512 KB Output is correct
47 Correct 1158 ms 150436 KB Output is correct
48 Correct 1252 ms 150304 KB Output is correct
49 Correct 660 ms 220672 KB Output is correct
50 Correct 743 ms 220608 KB Output is correct
51 Correct 1160 ms 151896 KB Output is correct
52 Correct 1000 ms 150864 KB Output is correct
53 Correct 1285 ms 150852 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 2 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 600 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 344 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 600 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 2 ms 600 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 600 KB Output is correct
25 Correct 9 ms 4184 KB Output is correct
26 Correct 23 ms 9416 KB Output is correct
27 Correct 28 ms 13264 KB Output is correct
28 Correct 26 ms 13264 KB Output is correct
29 Correct 13 ms 6232 KB Output is correct
30 Correct 13 ms 6236 KB Output is correct
31 Correct 15 ms 6488 KB Output is correct
32 Correct 16 ms 6488 KB Output is correct
33 Correct 14 ms 6492 KB Output is correct
34 Correct 59 ms 19664 KB Output is correct
35 Correct 81 ms 32484 KB Output is correct
36 Correct 77 ms 32444 KB Output is correct
37 Correct 45 ms 15448 KB Output is correct
38 Correct 39 ms 15448 KB Output is correct
39 Correct 276 ms 65104 KB Output is correct
40 Correct 885 ms 197560 KB Output is correct
41 Correct 1036 ms 320464 KB Output is correct
42 Correct 990 ms 322188 KB Output is correct
43 Correct 587 ms 150464 KB Output is correct
44 Correct 594 ms 150488 KB Output is correct
45 Correct 1056 ms 190988 KB Output is correct
46 Correct 981 ms 203040 KB Output is correct

Subtask #4
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 2 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 600 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 26 ms 6232 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 2 ms 856 KB Output is correct
36 Correct 9 ms 4184 KB Output is correct
37 Correct 19 ms 7000 KB Output is correct
38 Correct 25 ms 9424 KB Output is correct
39 Correct 30 ms 13208 KB Output is correct
40 Correct 28 ms 6488 KB Output is correct
41 Correct 34 ms 6492 KB Output is correct
42 Correct 29 ms 13272 KB Output is correct
43 Correct 22 ms 6232 KB Output is correct
44 Correct 13 ms 6436 KB Output is correct
45 Correct 27 ms 9304 KB Output is correct
46 Correct 25 ms 9048 KB Output is correct
47 Correct 23 ms 8024 KB Output is correct
48 Correct 20 ms 6488 KB Output is correct
49 Correct 18 ms 6488 KB Output is correct
50 Correct 19 ms 6612 KB Output is correct
51 Correct 15 ms 6488 KB Output is correct
52 Correct 15 ms 6488 KB Output is correct
53 Correct 17 ms 6488 KB Output is correct
54 Correct 19 ms 6488 KB Output is correct

Subtask #5
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 2 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 600 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 26 ms 6232 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 2 ms 856 KB Output is correct
36 Correct 9 ms 4184 KB Output is correct
37 Correct 19 ms 7000 KB Output is correct
38 Correct 25 ms 9424 KB Output is correct
39 Correct 30 ms 13208 KB Output is correct
40 Correct 28 ms 6488 KB Output is correct
41 Correct 34 ms 6492 KB Output is correct
42 Correct 29 ms 13272 KB Output is correct
43 Correct 22 ms 6232 KB Output is correct
44 Correct 13 ms 6436 KB Output is correct
45 Correct 27 ms 9304 KB Output is correct
46 Correct 25 ms 9048 KB Output is correct
47 Correct 23 ms 8024 KB Output is correct
48 Correct 20 ms 6488 KB Output is correct
49 Correct 18 ms 6488 KB Output is correct
50 Correct 19 ms 6612 KB Output is correct
51 Correct 15 ms 6488 KB Output is correct
52 Correct 15 ms 6488 KB Output is correct
53 Correct 17 ms 6488 KB Output is correct
54 Correct 19 ms 6488 KB Output is correct
55 Correct 76 ms 15440 KB Output is correct
56 Correct 22 ms 8024 KB Output is correct
57 Correct 59 ms 19516 KB Output is correct
58 Correct 55 ms 14416 KB Output is correct
59 Correct 82 ms 32324 KB Output is correct
60 Correct 93 ms 15440 KB Output is correct
61 Correct 75 ms 15452 KB Output is correct
62 Correct 88 ms 32448 KB Output is correct
63 Correct 58 ms 15440 KB Output is correct
64 Correct 43 ms 15440 KB Output is correct
65 Correct 72 ms 22408 KB Output is correct
66 Correct 78 ms 22504 KB Output is correct
67 Correct 79 ms 18952 KB Output is correct
68 Correct 62 ms 15572 KB Output is correct
69 Correct 75 ms 15736 KB Output is correct
70 Correct 71 ms 15864 KB Output is correct
71 Correct 62 ms 16080 KB Output is correct
72 Correct 67 ms 15772 KB Output is correct
73 Correct 89 ms 15800 KB Output is correct
74 Correct 55 ms 15452 KB Output is correct

Subtask #6
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 26 ms 6232 KB Output is correct
20 Correct 21 ms 7004 KB Output is correct
21 Correct 36 ms 13232 KB Output is correct
22 Correct 29 ms 6712 KB Output is correct
23 Correct 25 ms 6236 KB Output is correct
24 Correct 25 ms 9304 KB Output is correct
25 Correct 24 ms 9052 KB Output is correct
26 Correct 16 ms 6488 KB Output is correct
27 Correct 14 ms 6696 KB Output is correct
28 Correct 20 ms 6488 KB Output is correct
29 Correct 81 ms 15444 KB Output is correct
30 Correct 22 ms 8024 KB Output is correct
31 Correct 83 ms 32496 KB Output is correct
32 Correct 86 ms 15444 KB Output is correct
33 Correct 76 ms 15440 KB Output is correct
34 Correct 69 ms 22532 KB Output is correct
35 Correct 71 ms 22348 KB Output is correct
36 Correct 68 ms 15620 KB Output is correct
37 Correct 87 ms 15800 KB Output is correct
38 Correct 48 ms 15440 KB Output is correct
39 Correct 1223 ms 150308 KB Output is correct
40 Correct 55 ms 17744 KB Output is correct
41 Correct 66 ms 27472 KB Output is correct
42 Correct 125 ms 21840 KB Output is correct
43 Correct 105 ms 30324 KB Output is correct
44 Correct 311 ms 80392 KB Output is correct
45 Correct 320 ms 87888 KB Output is correct
46 Correct 1080 ms 320512 KB Output is correct
47 Correct 1158 ms 150436 KB Output is correct
48 Correct 1252 ms 150304 KB Output is correct
49 Correct 660 ms 220672 KB Output is correct
50 Correct 743 ms 220608 KB Output is correct
51 Correct 1160 ms 151896 KB Output is correct
52 Correct 1000 ms 150864 KB Output is correct
53 Correct 1285 ms 150852 KB Output is correct
54 Correct 1 ms 344 KB Output is correct
55 Correct 0 ms 344 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 1 ms 344 KB Output is correct
58 Correct 2 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 1 ms 344 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 1 ms 604 KB Output is correct
66 Correct 1 ms 344 KB Output is correct
67 Correct 1 ms 344 KB Output is correct
68 Correct 1 ms 600 KB Output is correct
69 Correct 1 ms 600 KB Output is correct
70 Correct 1 ms 348 KB Output is correct
71 Correct 1 ms 344 KB Output is correct
72 Correct 1 ms 344 KB Output is correct
73 Correct 1 ms 344 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 1 ms 344 KB Output is correct
76 Correct 1 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 1 ms 344 KB Output is correct
80 Correct 0 ms 348 KB Output is correct
81 Correct 1 ms 348 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 1 ms 348 KB Output is correct
84 Correct 1 ms 348 KB Output is correct
85 Correct 1 ms 344 KB Output is correct
86 Correct 1 ms 344 KB Output is correct
87 Correct 0 ms 348 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 1 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 1 ms 600 KB Output is correct
93 Correct 1 ms 344 KB Output is correct
94 Correct 1 ms 600 KB Output is correct
95 Correct 1 ms 344 KB Output is correct
96 Correct 1 ms 344 KB Output is correct
97 Correct 1 ms 600 KB Output is correct
98 Correct 1 ms 344 KB Output is correct
99 Correct 1 ms 348 KB Output is correct
100 Correct 1 ms 344 KB Output is correct
101 Correct 0 ms 348 KB Output is correct
102 Correct 1 ms 348 KB Output is correct
103 Correct 0 ms 344 KB Output is correct
104 Correct 0 ms 344 KB Output is correct
105 Correct 0 ms 344 KB Output is correct
106 Correct 1 ms 344 KB Output is correct
107 Correct 2 ms 600 KB Output is correct
108 Correct 1 ms 344 KB Output is correct
109 Correct 1 ms 600 KB Output is correct
110 Correct 9 ms 4184 KB Output is correct
111 Correct 23 ms 9416 KB Output is correct
112 Correct 28 ms 13264 KB Output is correct
113 Correct 26 ms 13264 KB Output is correct
114 Correct 13 ms 6232 KB Output is correct
115 Correct 13 ms 6236 KB Output is correct
116 Correct 15 ms 6488 KB Output is correct
117 Correct 16 ms 6488 KB Output is correct
118 Correct 14 ms 6492 KB Output is correct
119 Correct 59 ms 19664 KB Output is correct
120 Correct 81 ms 32484 KB Output is correct
121 Correct 77 ms 32444 KB Output is correct
122 Correct 45 ms 15448 KB Output is correct
123 Correct 39 ms 15448 KB Output is correct
124 Correct 276 ms 65104 KB Output is correct
125 Correct 885 ms 197560 KB Output is correct
126 Correct 1036 ms 320464 KB Output is correct
127 Correct 990 ms 322188 KB Output is correct
128 Correct 587 ms 150464 KB Output is correct
129 Correct 594 ms 150488 KB Output is correct
130 Correct 1056 ms 190988 KB Output is correct
131 Correct 981 ms 203040 KB Output is correct
132 Correct 26 ms 6232 KB Output is correct
133 Correct 1 ms 604 KB Output is correct
134 Correct 2 ms 856 KB Output is correct
135 Correct 9 ms 4184 KB Output is correct
136 Correct 19 ms 7000 KB Output is correct
137 Correct 25 ms 9424 KB Output is correct
138 Correct 30 ms 13208 KB Output is correct
139 Correct 28 ms 6488 KB Output is correct
140 Correct 34 ms 6492 KB Output is correct
141 Correct 29 ms 13272 KB Output is correct
142 Correct 22 ms 6232 KB Output is correct
143 Correct 13 ms 6436 KB Output is correct
144 Correct 27 ms 9304 KB Output is correct
145 Correct 25 ms 9048 KB Output is correct
146 Correct 23 ms 8024 KB Output is correct
147 Correct 20 ms 6488 KB Output is correct
148 Correct 18 ms 6488 KB Output is correct
149 Correct 19 ms 6612 KB Output is correct
150 Correct 15 ms 6488 KB Output is correct
151 Correct 15 ms 6488 KB Output is correct
152 Correct 17 ms 6488 KB Output is correct
153 Correct 19 ms 6488 KB Output is correct
154 Correct 76 ms 15440 KB Output is correct
155 Correct 22 ms 8024 KB Output is correct
156 Correct 59 ms 19516 KB Output is correct
157 Correct 55 ms 14416 KB Output is correct
158 Correct 82 ms 32324 KB Output is correct
159 Correct 93 ms 15440 KB Output is correct
160 Correct 75 ms 15452 KB Output is correct
161 Correct 88 ms 32448 KB Output is correct
162 Correct 58 ms 15440 KB Output is correct
163 Correct 43 ms 15440 KB Output is correct
164 Correct 72 ms 22408 KB Output is correct
165 Correct 78 ms 22504 KB Output is correct
166 Correct 79 ms 18952 KB Output is correct
167 Correct 62 ms 15572 KB Output is correct
168 Correct 75 ms 15736 KB Output is correct
169 Correct 71 ms 15864 KB Output is correct
170 Correct 62 ms 16080 KB Output is correct
171 Correct 67 ms 15772 KB Output is correct
172 Correct 89 ms 15800 KB Output is correct
173 Correct 55 ms 15452 KB Output is correct
174 Correct 66 ms 20560 KB Output is correct
175 Correct 167 ms 34280 KB Output is correct
176 Correct 285 ms 88384 KB Output is correct
177 Correct 544 ms 102768 KB Output is correct
178 Correct 536 ms 132808 KB Output is correct
179 Correct 807 ms 152044 KB Output is correct
180 Correct 959 ms 151552 KB Output is correct
181 Correct 908 ms 152048 KB Output is correct
182 Correct 987 ms 153604 KB Output is correct
183 Correct 902 ms 157020 KB Output is correct

Subtask #7
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 26 ms 6232 KB Output is correct
20 Correct 21 ms 7004 KB Output is correct
21 Correct 36 ms 13232 KB Output is correct
22 Correct 29 ms 6712 KB Output is correct
23 Correct 25 ms 6236 KB Output is correct
24 Correct 25 ms 9304 KB Output is correct
25 Correct 24 ms 9052 KB Output is correct
26 Correct 16 ms 6488 KB Output is correct
27 Correct 14 ms 6696 KB Output is correct
28 Correct 20 ms 6488 KB Output is correct
29 Correct 81 ms 15444 KB Output is correct
30 Correct 22 ms 8024 KB Output is correct
31 Correct 83 ms 32496 KB Output is correct
32 Correct 86 ms 15444 KB Output is correct
33 Correct 76 ms 15440 KB Output is correct
34 Correct 69 ms 22532 KB Output is correct
35 Correct 71 ms 22348 KB Output is correct
36 Correct 68 ms 15620 KB Output is correct
37 Correct 87 ms 15800 KB Output is correct
38 Correct 48 ms 15440 KB Output is correct
39 Correct 1223 ms 150308 KB Output is correct
40 Correct 55 ms 17744 KB Output is correct
41 Correct 66 ms 27472 KB Output is correct
42 Correct 125 ms 21840 KB Output is correct
43 Correct 105 ms 30324 KB Output is correct
44 Correct 311 ms 80392 KB Output is correct
45 Correct 320 ms 87888 KB Output is correct
46 Correct 1080 ms 320512 KB Output is correct
47 Correct 1158 ms 150436 KB Output is correct
48 Correct 1252 ms 150304 KB Output is correct
49 Correct 660 ms 220672 KB Output is correct
50 Correct 743 ms 220608 KB Output is correct
51 Correct 1160 ms 151896 KB Output is correct
52 Correct 1000 ms 150864 KB Output is correct
53 Correct 1285 ms 150852 KB Output is correct
54 Correct 1 ms 344 KB Output is correct
55 Correct 0 ms 344 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 1 ms 344 KB Output is correct
58 Correct 2 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 1 ms 344 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 1 ms 604 KB Output is correct
66 Correct 1 ms 344 KB Output is correct
67 Correct 1 ms 344 KB Output is correct
68 Correct 1 ms 600 KB Output is correct
69 Correct 1 ms 600 KB Output is correct
70 Correct 1 ms 348 KB Output is correct
71 Correct 1 ms 344 KB Output is correct
72 Correct 1 ms 344 KB Output is correct
73 Correct 1 ms 344 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 1 ms 344 KB Output is correct
76 Correct 1 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 1 ms 344 KB Output is correct
80 Correct 0 ms 348 KB Output is correct
81 Correct 1 ms 348 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 1 ms 348 KB Output is correct
84 Correct 1 ms 348 KB Output is correct
85 Correct 1 ms 344 KB Output is correct
86 Correct 1 ms 344 KB Output is correct
87 Correct 0 ms 348 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 1 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 1 ms 600 KB Output is correct
93 Correct 1 ms 344 KB Output is correct
94 Correct 1 ms 600 KB Output is correct
95 Correct 1 ms 344 KB Output is correct
96 Correct 1 ms 344 KB Output is correct
97 Correct 1 ms 600 KB Output is correct
98 Correct 1 ms 344 KB Output is correct
99 Correct 1 ms 348 KB Output is correct
100 Correct 1 ms 344 KB Output is correct
101 Correct 0 ms 348 KB Output is correct
102 Correct 1 ms 348 KB Output is correct
103 Correct 0 ms 344 KB Output is correct
104 Correct 0 ms 344 KB Output is correct
105 Correct 0 ms 344 KB Output is correct
106 Correct 1 ms 344 KB Output is correct
107 Correct 2 ms 600 KB Output is correct
108 Correct 1 ms 344 KB Output is correct
109 Correct 1 ms 600 KB Output is correct
110 Correct 9 ms 4184 KB Output is correct
111 Correct 23 ms 9416 KB Output is correct
112 Correct 28 ms 13264 KB Output is correct
113 Correct 26 ms 13264 KB Output is correct
114 Correct 13 ms 6232 KB Output is correct
115 Correct 13 ms 6236 KB Output is correct
116 Correct 15 ms 6488 KB Output is correct
117 Correct 16 ms 6488 KB Output is correct
118 Correct 14 ms 6492 KB Output is correct
119 Correct 59 ms 19664 KB Output is correct
120 Correct 81 ms 32484 KB Output is correct
121 Correct 77 ms 32444 KB Output is correct
122 Correct 45 ms 15448 KB Output is correct
123 Correct 39 ms 15448 KB Output is correct
124 Correct 276 ms 65104 KB Output is correct
125 Correct 885 ms 197560 KB Output is correct
126 Correct 1036 ms 320464 KB Output is correct
127 Correct 990 ms 322188 KB Output is correct
128 Correct 587 ms 150464 KB Output is correct
129 Correct 594 ms 150488 KB Output is correct
130 Correct 1056 ms 190988 KB Output is correct
131 Correct 981 ms 203040 KB Output is correct
132 Correct 26 ms 6232 KB Output is correct
133 Correct 1 ms 604 KB Output is correct
134 Correct 2 ms 856 KB Output is correct
135 Correct 9 ms 4184 KB Output is correct
136 Correct 19 ms 7000 KB Output is correct
137 Correct 25 ms 9424 KB Output is correct
138 Correct 30 ms 13208 KB Output is correct
139 Correct 28 ms 6488 KB Output is correct
140 Correct 34 ms 6492 KB Output is correct
141 Correct 29 ms 13272 KB Output is correct
142 Correct 22 ms 6232 KB Output is correct
143 Correct 13 ms 6436 KB Output is correct
144 Correct 27 ms 9304 KB Output is correct
145 Correct 25 ms 9048 KB Output is correct
146 Correct 23 ms 8024 KB Output is correct
147 Correct 20 ms 6488 KB Output is correct
148 Correct 18 ms 6488 KB Output is correct
149 Correct 19 ms 6612 KB Output is correct
150 Correct 15 ms 6488 KB Output is correct
151 Correct 15 ms 6488 KB Output is correct
152 Correct 17 ms 6488 KB Output is correct
153 Correct 19 ms 6488 KB Output is correct
154 Correct 76 ms 15440 KB Output is correct
155 Correct 22 ms 8024 KB Output is correct
156 Correct 59 ms 19516 KB Output is correct
157 Correct 55 ms 14416 KB Output is correct
158 Correct 82 ms 32324 KB Output is correct
159 Correct 93 ms 15440 KB Output is correct
160 Correct 75 ms 15452 KB Output is correct
161 Correct 88 ms 32448 KB Output is correct
162 Correct 58 ms 15440 KB Output is correct
163 Correct 43 ms 15440 KB Output is correct
164 Correct 72 ms 22408 KB Output is correct
165 Correct 78 ms 22504 KB Output is correct
166 Correct 79 ms 18952 KB Output is correct
167 Correct 62 ms 15572 KB Output is correct
168 Correct 75 ms 15736 KB Output is correct
169 Correct 71 ms 15864 KB Output is correct
170 Correct 62 ms 16080 KB Output is correct
171 Correct 67 ms 15772 KB Output is correct
172 Correct 89 ms 15800 KB Output is correct
173 Correct 55 ms 15452 KB Output is correct
174 Correct 66 ms 20560 KB Output is correct
175 Correct 167 ms 34280 KB Output is correct
176 Correct 285 ms 88384 KB Output is correct
177 Correct 544 ms 102768 KB Output is correct
178 Correct 536 ms 132808 KB Output is correct
179 Correct 807 ms 152044 KB Output is correct
180 Correct 959 ms 151552 KB Output is correct
181 Correct 908 ms 152048 KB Output is correct
182 Correct 987 ms 153604 KB Output is correct
183 Correct 902 ms 157020 KB Output is correct
184 Execution timed out 2021 ms 300116 KB Time limit exceeded
185 Halted 0 ms 0 KB -

Subtask #8
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 26 ms 6232 KB Output is correct
20 Correct 21 ms 7004 KB Output is correct
21 Correct 36 ms 13232 KB Output is correct
22 Correct 29 ms 6712 KB Output is correct
23 Correct 25 ms 6236 KB Output is correct
24 Correct 25 ms 9304 KB Output is correct
25 Correct 24 ms 9052 KB Output is correct
26 Correct 16 ms 6488 KB Output is correct
27 Correct 14 ms 6696 KB Output is correct
28 Correct 20 ms 6488 KB Output is correct
29 Correct 81 ms 15444 KB Output is correct
30 Correct 22 ms 8024 KB Output is correct
31 Correct 83 ms 32496 KB Output is correct
32 Correct 86 ms 15444 KB Output is correct
33 Correct 76 ms 15440 KB Output is correct
34 Correct 69 ms 22532 KB Output is correct
35 Correct 71 ms 22348 KB Output is correct
36 Correct 68 ms 15620 KB Output is correct
37 Correct 87 ms 15800 KB Output is correct
38 Correct 48 ms 15440 KB Output is correct
39 Correct 1223 ms 150308 KB Output is correct
40 Correct 55 ms 17744 KB Output is correct
41 Correct 66 ms 27472 KB Output is correct
42 Correct 125 ms 21840 KB Output is correct
43 Correct 105 ms 30324 KB Output is correct
44 Correct 311 ms 80392 KB Output is correct
45 Correct 320 ms 87888 KB Output is correct
46 Correct 1080 ms 320512 KB Output is correct
47 Correct 1158 ms 150436 KB Output is correct
48 Correct 1252 ms 150304 KB Output is correct
49 Correct 660 ms 220672 KB Output is correct
50 Correct 743 ms 220608 KB Output is correct
51 Correct 1160 ms 151896 KB Output is correct
52 Correct 1000 ms 150864 KB Output is correct
53 Correct 1285 ms 150852 KB Output is correct
54 Correct 1 ms 344 KB Output is correct
55 Correct 0 ms 344 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 1 ms 344 KB Output is correct
58 Correct 2 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 1 ms 344 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 1 ms 604 KB Output is correct
66 Correct 1 ms 344 KB Output is correct
67 Correct 1 ms 344 KB Output is correct
68 Correct 1 ms 600 KB Output is correct
69 Correct 1 ms 600 KB Output is correct
70 Correct 1 ms 348 KB Output is correct
71 Correct 1 ms 344 KB Output is correct
72 Correct 1 ms 344 KB Output is correct
73 Correct 1 ms 344 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 1 ms 344 KB Output is correct
76 Correct 1 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 1 ms 344 KB Output is correct
80 Correct 0 ms 348 KB Output is correct
81 Correct 1 ms 348 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 1 ms 348 KB Output is correct
84 Correct 1 ms 348 KB Output is correct
85 Correct 1 ms 344 KB Output is correct
86 Correct 1 ms 344 KB Output is correct
87 Correct 0 ms 348 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 1 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 1 ms 600 KB Output is correct
93 Correct 1 ms 344 KB Output is correct
94 Correct 1 ms 600 KB Output is correct
95 Correct 1 ms 344 KB Output is correct
96 Correct 1 ms 344 KB Output is correct
97 Correct 1 ms 600 KB Output is correct
98 Correct 1 ms 344 KB Output is correct
99 Correct 1 ms 348 KB Output is correct
100 Correct 1 ms 344 KB Output is correct
101 Correct 0 ms 348 KB Output is correct
102 Correct 1 ms 348 KB Output is correct
103 Correct 0 ms 344 KB Output is correct
104 Correct 0 ms 344 KB Output is correct
105 Correct 0 ms 344 KB Output is correct
106 Correct 1 ms 344 KB Output is correct
107 Correct 2 ms 600 KB Output is correct
108 Correct 1 ms 344 KB Output is correct
109 Correct 1 ms 600 KB Output is correct
110 Correct 9 ms 4184 KB Output is correct
111 Correct 23 ms 9416 KB Output is correct
112 Correct 28 ms 13264 KB Output is correct
113 Correct 26 ms 13264 KB Output is correct
114 Correct 13 ms 6232 KB Output is correct
115 Correct 13 ms 6236 KB Output is correct
116 Correct 15 ms 6488 KB Output is correct
117 Correct 16 ms 6488 KB Output is correct
118 Correct 14 ms 6492 KB Output is correct
119 Correct 59 ms 19664 KB Output is correct
120 Correct 81 ms 32484 KB Output is correct
121 Correct 77 ms 32444 KB Output is correct
122 Correct 45 ms 15448 KB Output is correct
123 Correct 39 ms 15448 KB Output is correct
124 Correct 276 ms 65104 KB Output is correct
125 Correct 885 ms 197560 KB Output is correct
126 Correct 1036 ms 320464 KB Output is correct
127 Correct 990 ms 322188 KB Output is correct
128 Correct 587 ms 150464 KB Output is correct
129 Correct 594 ms 150488 KB Output is correct
130 Correct 1056 ms 190988 KB Output is correct
131 Correct 981 ms 203040 KB Output is correct
132 Correct 26 ms 6232 KB Output is correct
133 Correct 1 ms 604 KB Output is correct
134 Correct 2 ms 856 KB Output is correct
135 Correct 9 ms 4184 KB Output is correct
136 Correct 19 ms 7000 KB Output is correct
137 Correct 25 ms 9424 KB Output is correct
138 Correct 30 ms 13208 KB Output is correct
139 Correct 28 ms 6488 KB Output is correct
140 Correct 34 ms 6492 KB Output is correct
141 Correct 29 ms 13272 KB Output is correct
142 Correct 22 ms 6232 KB Output is correct
143 Correct 13 ms 6436 KB Output is correct
144 Correct 27 ms 9304 KB Output is correct
145 Correct 25 ms 9048 KB Output is correct
146 Correct 23 ms 8024 KB Output is correct
147 Correct 20 ms 6488 KB Output is correct
148 Correct 18 ms 6488 KB Output is correct
149 Correct 19 ms 6612 KB Output is correct
150 Correct 15 ms 6488 KB Output is correct
151 Correct 15 ms 6488 KB Output is correct
152 Correct 17 ms 6488 KB Output is correct
153 Correct 19 ms 6488 KB Output is correct
154 Correct 76 ms 15440 KB Output is correct
155 Correct 22 ms 8024 KB Output is correct
156 Correct 59 ms 19516 KB Output is correct
157 Correct 55 ms 14416 KB Output is correct
158 Correct 82 ms 32324 KB Output is correct
159 Correct 93 ms 15440 KB Output is correct
160 Correct 75 ms 15452 KB Output is correct
161 Correct 88 ms 32448 KB Output is correct
162 Correct 58 ms 15440 KB Output is correct
163 Correct 43 ms 15440 KB Output is correct
164 Correct 72 ms 22408 KB Output is correct
165 Correct 78 ms 22504 KB Output is correct
166 Correct 79 ms 18952 KB Output is correct
167 Correct 62 ms 15572 KB Output is correct
168 Correct 75 ms 15736 KB Output is correct
169 Correct 71 ms 15864 KB Output is correct
170 Correct 62 ms 16080 KB Output is correct
171 Correct 67 ms 15772 KB Output is correct
172 Correct 89 ms 15800 KB Output is correct
173 Correct 55 ms 15452 KB Output is correct
174 Correct 66 ms 20560 KB Output is correct
175 Correct 167 ms 34280 KB Output is correct
176 Correct 285 ms 88384 KB Output is correct
177 Correct 544 ms 102768 KB Output is correct
178 Correct 536 ms 132808 KB Output is correct
179 Correct 807 ms 152044 KB Output is correct
180 Correct 959 ms 151552 KB Output is correct
181 Correct 908 ms 152048 KB Output is correct
182 Correct 987 ms 153604 KB Output is correct
183 Correct 902 ms 157020 KB Output is correct
184 Execution timed out 2021 ms 300116 KB Time limit exceeded
185 Halted 0 ms 0 KB -