oj.uz

Submission #418249

# Submission time Handle Problem Language Result Execution time Memory
418249 2021-06-05T08:44:38 Z Peti Rectangles (IOI19_rect) C++14
72 / 100
 3640 ms 1048580 KB 
#include <bits/stdc++.h>

using namespace std;

const int maxn = 2505, INF = (int)1e9;
int n, m;

int Y1[maxn][maxn], Y2[maxn][maxn], X1[maxn][maxn], X2[maxn][maxn];
vector<bool> jo;

struct adat{
    int l, r, x, ind;
    adat(){}
    adat(int l, int r, int x, int ind) : l(l), r(r), x(x), ind(ind) {}
};

void calc_elott(vector<vector<int>> &a, function<bool(int, int)> comp){
    for(int i = 0; i < n; i++){
        Y1[i][0] = -1;
        for(int j = 1; j < m; j++){
            Y1[i][j] = j-1;
            while(Y1[i][j] >= 0 && comp(a[i][Y1[i][j]], a[i][j]))
                Y1[i][j] = Y1[i][Y1[i][j]];
        }
        Y2[i][m-1] = m;
        for(int j = m-2; j >= 0; j--){
            Y2[i][j] = j+1;
            while(Y2[i][j] < m && comp(a[i][Y2[i][j]], a[i][j]))
                Y2[i][j] = Y2[i][Y2[i][j]];
        }
    }
    for(int i = 0; i < m; i++){
        X1[0][i] = -1;
        for(int j = 1; j < n; j++){
            X1[j][i] = j-1;
            while(X1[j][i] >= 0 && comp(a[X1[j][i]][i], a[j][i]))
                X1[j][i] = X1[X1[j][i]][i];
        }
        X2[n-1][i] = n;
        for(int j = n-2; j >= 0; j--){
            X2[j][i] = j+1;
            while(X2[j][i] < n && comp(a[X2[j][i]][i], a[j][i]))
                X2[j][i] = X2[X2[j][i]][i];
        }
    }
}

vector<adat> U[maxn+1], D[maxn+1], L[maxn+1], R[maxn+1];

pair<int, int> sor[maxn+2];
void ell(int t[], vector<adat> &ints, int n, function<bool(int, int)> comp){
    vector<vector<adat>> vh(n);
    for(adat &d : ints)
        vh[d.r].push_back(d);
    int x = 0;
    for(int i = 0; i < n; i++){
        while(x > 0 && comp(t[i], sor[x-1].second))
            x--;
        sor[x++] = make_pair(i, t[i]);
        for(adat &d : vh[i])
            if(comp(lower_bound(sor, sor+x, make_pair(d.l, -INF))->second, d.x))
                jo[d.ind] = false;
    }
}

vector<pair<int, int>> sarok[maxn][maxn];
bool volt[maxn][maxn] = {};

long long count_rectangles(std::vector<std::vector<int>> a){
    n = (int)a.size();
    m = (int)a[0].size();
    calc_elott(a, [](int a, int b){ return a <= b; });

    int ind = 0;
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            int x1 = X1[i][j], x2 = X2[i][j], y1 = Y1[i][j], y2 = Y2[i][j];
            if(x1 != -1 && y1 != -1 && x2 != n && y2 != m)
                sarok[x1][y1].emplace_back(x2, y2);
        }
    }

    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            for(pair<int, int> &p : sarok[i][j]){
                int x1 = i, y1 = j, x2 = p.first, y2 = p.second;
                if(volt[x2][y2]) continue;
                volt[x2][y2] = true;
                U[x1].emplace_back(y1+1, y2-1, x2, ind);
                D[x2].emplace_back(y1+1, y2-1, x1, ind);
                L[y1].emplace_back(x1+1, x2-1, y2, ind);
                R[y2].emplace_back(x1+1, x2-1, y1, ind);
                jo.push_back(true);
                ind++;
            }
            for(pair<int, int> &p : sarok[i][j])
                volt[p.first][p.second] = false;
        }
    }

    calc_elott(a, [](int a, int b){ return a < b; });

    for(int i = 0; i < maxn; i++){
        for(int j = i+1; j < maxn; j++){
            swap(Y1[i][j], Y1[j][i]);
            swap(Y2[i][j], Y2[j][i]);
        }
    }


    for(int i = 0; i < n; i++){
        ell(X1[i], D[i], m, [](int a, int b){return a > b;});
        ell(X2[i], U[i], m, [](int a, int b){return a < b;});
    }
    for(int i = 0; i < m; i++){
        ell(Y1[i], R[i], n, [](int a, int b){return a > b;});
        ell(Y2[i], L[i], n, [](int a, int b){return a < b;});
    }

    return accumulate(jo.begin(), jo.end(), 0);
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 196980 KB Output is correct
2 Correct 167 ms 197360 KB Output is correct
3 Correct 164 ms 197316 KB Output is correct
4 Correct 162 ms 197380 KB Output is correct
5 Correct 167 ms 197220 KB Output is correct
6 Correct 171 ms 197376 KB Output is correct
7 Correct 167 ms 197348 KB Output is correct
8 Correct 166 ms 197092 KB Output is correct
9 Correct 166 ms 197392 KB Output is correct
10 Correct 163 ms 197316 KB Output is correct
11 Correct 168 ms 197292 KB Output is correct
12 Correct 167 ms 197420 KB Output is correct
13 Correct 167 ms 196948 KB Output is correct
14 Correct 168 ms 197072 KB Output is correct
15 Correct 163 ms 196988 KB Output is correct
16 Correct 164 ms 196988 KB Output is correct
17 Correct 165 ms 196932 KB Output is correct
18 Correct 164 ms 196996 KB Output is correct
19 Correct 164 ms 197320 KB Output is correct
20 Correct 166 ms 197256 KB Output is correct
21 Correct 165 ms 197040 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 196980 KB Output is correct
2 Correct 167 ms 197360 KB Output is correct
3 Correct 164 ms 197316 KB Output is correct
4 Correct 162 ms 197380 KB Output is correct
5 Correct 167 ms 197220 KB Output is correct
6 Correct 171 ms 197376 KB Output is correct
7 Correct 167 ms 197348 KB Output is correct
8 Correct 166 ms 197092 KB Output is correct
9 Correct 166 ms 197392 KB Output is correct
10 Correct 163 ms 197316 KB Output is correct
11 Correct 168 ms 197292 KB Output is correct
12 Correct 167 ms 197420 KB Output is correct
13 Correct 167 ms 196948 KB Output is correct
14 Correct 168 ms 197072 KB Output is correct
15 Correct 163 ms 196988 KB Output is correct
16 Correct 164 ms 196988 KB Output is correct
17 Correct 165 ms 196932 KB Output is correct
18 Correct 164 ms 196996 KB Output is correct
19 Correct 164 ms 197320 KB Output is correct
20 Correct 166 ms 197256 KB Output is correct
21 Correct 165 ms 197040 KB Output is correct
22 Correct 169 ms 198712 KB Output is correct
23 Correct 167 ms 198756 KB Output is correct
24 Correct 169 ms 198756 KB Output is correct
25 Correct 168 ms 198304 KB Output is correct
26 Correct 173 ms 198576 KB Output is correct
27 Correct 173 ms 198560 KB Output is correct
28 Correct 169 ms 198508 KB Output is correct
29 Correct 171 ms 198084 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 196980 KB Output is correct
2 Correct 167 ms 197360 KB Output is correct
3 Correct 164 ms 197316 KB Output is correct
4 Correct 162 ms 197380 KB Output is correct
5 Correct 167 ms 197220 KB Output is correct
6 Correct 171 ms 197376 KB Output is correct
7 Correct 167 ms 197348 KB Output is correct
8 Correct 166 ms 197092 KB Output is correct
9 Correct 166 ms 197392 KB Output is correct
10 Correct 163 ms 197316 KB Output is correct
11 Correct 168 ms 197292 KB Output is correct
12 Correct 167 ms 197420 KB Output is correct
13 Correct 167 ms 196948 KB Output is correct
14 Correct 168 ms 197072 KB Output is correct
15 Correct 163 ms 196988 KB Output is correct
16 Correct 164 ms 196988 KB Output is correct
17 Correct 169 ms 198712 KB Output is correct
18 Correct 167 ms 198756 KB Output is correct
19 Correct 169 ms 198756 KB Output is correct
20 Correct 168 ms 198304 KB Output is correct
21 Correct 173 ms 198576 KB Output is correct
22 Correct 173 ms 198560 KB Output is correct
23 Correct 169 ms 198508 KB Output is correct
24 Correct 171 ms 198084 KB Output is correct
25 Correct 165 ms 196932 KB Output is correct
26 Correct 164 ms 196996 KB Output is correct
27 Correct 164 ms 197320 KB Output is correct
28 Correct 166 ms 197256 KB Output is correct
29 Correct 165 ms 197040 KB Output is correct
30 Correct 187 ms 205256 KB Output is correct
31 Correct 185 ms 205176 KB Output is correct
32 Correct 190 ms 205300 KB Output is correct
33 Correct 189 ms 202308 KB Output is correct
34 Correct 207 ms 204108 KB Output is correct
35 Correct 204 ms 204228 KB Output is correct
36 Correct 200 ms 203944 KB Output is correct
37 Correct 196 ms 203912 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 196980 KB Output is correct
2 Correct 167 ms 197360 KB Output is correct
3 Correct 164 ms 197316 KB Output is correct
4 Correct 162 ms 197380 KB Output is correct
5 Correct 167 ms 197220 KB Output is correct
6 Correct 171 ms 197376 KB Output is correct
7 Correct 167 ms 197348 KB Output is correct
8 Correct 166 ms 197092 KB Output is correct
9 Correct 166 ms 197392 KB Output is correct
10 Correct 163 ms 197316 KB Output is correct
11 Correct 168 ms 197292 KB Output is correct
12 Correct 167 ms 197420 KB Output is correct
13 Correct 167 ms 196948 KB Output is correct
14 Correct 168 ms 197072 KB Output is correct
15 Correct 163 ms 196988 KB Output is correct
16 Correct 164 ms 196988 KB Output is correct
17 Correct 169 ms 198712 KB Output is correct
18 Correct 167 ms 198756 KB Output is correct
19 Correct 169 ms 198756 KB Output is correct
20 Correct 168 ms 198304 KB Output is correct
21 Correct 173 ms 198576 KB Output is correct
22 Correct 173 ms 198560 KB Output is correct
23 Correct 169 ms 198508 KB Output is correct
24 Correct 171 ms 198084 KB Output is correct
25 Correct 187 ms 205256 KB Output is correct
26 Correct 185 ms 205176 KB Output is correct
27 Correct 190 ms 205300 KB Output is correct
28 Correct 189 ms 202308 KB Output is correct
29 Correct 207 ms 204108 KB Output is correct
30 Correct 204 ms 204228 KB Output is correct
31 Correct 200 ms 203944 KB Output is correct
32 Correct 196 ms 203912 KB Output is correct
33 Correct 165 ms 196932 KB Output is correct
34 Correct 164 ms 196996 KB Output is correct
35 Correct 164 ms 197320 KB Output is correct
36 Correct 166 ms 197256 KB Output is correct
37 Correct 165 ms 197040 KB Output is correct
38 Correct 258 ms 215324 KB Output is correct
39 Correct 266 ms 215276 KB Output is correct
40 Correct 263 ms 215284 KB Output is correct
41 Correct 260 ms 215296 KB Output is correct
42 Correct 462 ms 281616 KB Output is correct
43 Correct 431 ms 281552 KB Output is correct
44 Correct 432 ms 281892 KB Output is correct
45 Correct 420 ms 277332 KB Output is correct
46 Correct 422 ms 240836 KB Output is correct
47 Correct 485 ms 243648 KB Output is correct
48 Correct 643 ms 268484 KB Output is correct
49 Correct 666 ms 270404 KB Output is correct
50 Correct 416 ms 237048 KB Output is correct
51 Correct 419 ms 233976 KB Output is correct
52 Correct 581 ms 260036 KB Output is correct
53 Correct 610 ms 261904 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 183 ms 197576 KB Output is correct
2 Correct 180 ms 197488 KB Output is correct
3 Correct 176 ms 197184 KB Output is correct
4 Correct 170 ms 196988 KB Output is correct
5 Correct 168 ms 197388 KB Output is correct
6 Correct 174 ms 197384 KB Output is correct
7 Correct 172 ms 197360 KB Output is correct
8 Correct 172 ms 197288 KB Output is correct
9 Correct 171 ms 197316 KB Output is correct
10 Correct 175 ms 197064 KB Output is correct
11 Correct 172 ms 197196 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 165 ms 196932 KB Output is correct
2 Correct 164 ms 196996 KB Output is correct
3 Correct 164 ms 197320 KB Output is correct
4 Correct 166 ms 197256 KB Output is correct
5 Correct 165 ms 197040 KB Output is correct
6 Correct 169 ms 197084 KB Output is correct
7 Correct 1726 ms 375128 KB Output is correct
8 Correct 3611 ms 575176 KB Output is correct
9 Correct 3627 ms 586116 KB Output is correct
10 Correct 3640 ms 578588 KB Output is correct
11 Correct 745 ms 251564 KB Output is correct
12 Correct 1311 ms 303612 KB Output is correct
13 Correct 1377 ms 307532 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 196980 KB Output is correct
2 Correct 167 ms 197360 KB Output is correct
3 Correct 164 ms 197316 KB Output is correct
4 Correct 162 ms 197380 KB Output is correct
5 Correct 167 ms 197220 KB Output is correct
6 Correct 171 ms 197376 KB Output is correct
7 Correct 167 ms 197348 KB Output is correct
8 Correct 166 ms 197092 KB Output is correct
9 Correct 166 ms 197392 KB Output is correct
10 Correct 163 ms 197316 KB Output is correct
11 Correct 168 ms 197292 KB Output is correct
12 Correct 167 ms 197420 KB Output is correct
13 Correct 167 ms 196948 KB Output is correct
14 Correct 168 ms 197072 KB Output is correct
15 Correct 163 ms 196988 KB Output is correct
16 Correct 164 ms 196988 KB Output is correct
17 Correct 169 ms 198712 KB Output is correct
18 Correct 167 ms 198756 KB Output is correct
19 Correct 169 ms 198756 KB Output is correct
20 Correct 168 ms 198304 KB Output is correct
21 Correct 173 ms 198576 KB Output is correct
22 Correct 173 ms 198560 KB Output is correct
23 Correct 169 ms 198508 KB Output is correct
24 Correct 171 ms 198084 KB Output is correct
25 Correct 187 ms 205256 KB Output is correct
26 Correct 185 ms 205176 KB Output is correct
27 Correct 190 ms 205300 KB Output is correct
28 Correct 189 ms 202308 KB Output is correct
29 Correct 207 ms 204108 KB Output is correct
30 Correct 204 ms 204228 KB Output is correct
31 Correct 200 ms 203944 KB Output is correct
32 Correct 196 ms 203912 KB Output is correct
33 Correct 258 ms 215324 KB Output is correct
34 Correct 266 ms 215276 KB Output is correct
35 Correct 263 ms 215284 KB Output is correct
36 Correct 260 ms 215296 KB Output is correct
37 Correct 462 ms 281616 KB Output is correct
38 Correct 431 ms 281552 KB Output is correct
39 Correct 432 ms 281892 KB Output is correct
40 Correct 420 ms 277332 KB Output is correct
41 Correct 422 ms 240836 KB Output is correct
42 Correct 485 ms 243648 KB Output is correct
43 Correct 643 ms 268484 KB Output is correct
44 Correct 666 ms 270404 KB Output is correct
45 Correct 416 ms 237048 KB Output is correct
46 Correct 419 ms 233976 KB Output is correct
47 Correct 581 ms 260036 KB Output is correct
48 Correct 610 ms 261904 KB Output is correct
49 Correct 183 ms 197576 KB Output is correct
50 Correct 180 ms 197488 KB Output is correct
51 Correct 176 ms 197184 KB Output is correct
52 Correct 170 ms 196988 KB Output is correct
53 Correct 168 ms 197388 KB Output is correct
54 Correct 174 ms 197384 KB Output is correct
55 Correct 172 ms 197360 KB Output is correct
56 Correct 172 ms 197288 KB Output is correct
57 Correct 171 ms 197316 KB Output is correct
58 Correct 175 ms 197064 KB Output is correct
59 Correct 172 ms 197196 KB Output is correct
60 Correct 169 ms 197084 KB Output is correct
61 Correct 1726 ms 375128 KB Output is correct
62 Correct 3611 ms 575176 KB Output is correct
63 Correct 3627 ms 586116 KB Output is correct
64 Correct 3640 ms 578588 KB Output is correct
65 Correct 745 ms 251564 KB Output is correct
66 Correct 1311 ms 303612 KB Output is correct
67 Correct 1377 ms 307532 KB Output is correct
68 Correct 165 ms 196932 KB Output is correct
69 Correct 164 ms 196996 KB Output is correct
70 Correct 164 ms 197320 KB Output is correct
71 Correct 166 ms 197256 KB Output is correct
72 Correct 165 ms 197040 KB Output is correct
73 Correct 1603 ms 304156 KB Output is correct
74 Correct 1590 ms 304000 KB Output is correct
75 Correct 1593 ms 304048 KB Output is correct
76 Correct 1576 ms 304024 KB Output is correct
77 Runtime error 3316 ms 1048580 KB Execution killed with signal 9
78 Halted 0 ms 0 KB -