oj.uz

Submission #104000

# Submission time Handle Problem Language Result Execution time Memory
104000 2019-04-03T16:23:58 Z Badral Mecho (IOI09_mecho) C++17
84 / 100
 327 ms 14528 KB 
#include<bits/stdc++.h>
#define ll long long
using namespace std;
#define pi pair<ll, ll>

char a[1015][1015];
ll dx[] = {0, 0, 0, 1, -1, -1, 1, 1, -1};
ll dy[] = {0, 1, -1, 0, 0, -1, -1, 1, 1};
ll bear[1105][1015], bee[1105][1015], xx = -1, yy = -1, xxx = -1, yyy = -1, n, kk;

bool asdasd = 0;

bool can(ll k) {

    if ( k >= bee[xx][yy] ) return 0;

    for ( ll i = 1; i <= n; i++ ) 
        for ( ll j = 1; j <= n; j++ ) 
            bear[i][j] = INT_MAX;

    bear[xx][yy] = 0;

    queue < pi > q;
    
    q.push(make_pair(xx, yy));
        ll x, y;    
    while(!q.empty()) {
        tie(x, y) = q.front();
        q.pop();
        for(ll i = 1; i <= 4; i++) {
            ll x1 = x + dx[i], y1 = y + dy[i];
            if ( a[x1][y1] == 'D' ) {asdasd = 1; return 1;}
            if ( a[x1][y1] == 'G' && bear[x][y] + 1 < kk * ( bee[x1][y1] - k ) && bear[x1][y1] == INT_MAX ) {
                bear[x1][y1] = bear[x][y] + 1;
                q.push ( make_pair ( x1, y1 ) ); 
            }
        }
    }
    return 0;  
}

int main() {
    cin >> n >> kk;
    queue < pi > p;
    for(ll i = 1; i <= n; i++) {
        for(ll j = 1; j <= n; j++) {
            bee[i][j] = INT_MAX; 
            cin >>a[i][j];
            if ( a[i][j] == 'H' ) {p.push(make_pair(i, j)); bee[i][j] = 0;}
            if ( a[i][j] == 'M' ) xx = i, yy = j;
        }
    }

    while(!p.empty()) {
        ll x, y; tie(x, y) = p.front(); p.pop();
        for ( ll i = 1; i <= 4; i++ ) {
            ll x1 = x + dx[i], y1 = y + dy[i];

            if ( bee[x1][y1] == INT_MAX && ( a[x1][y1] == 'G' || a[x1][y1] == 'M' ) ) {
                bee[x1][y1] = bee[x][y] + 1; p.push ( make_pair ( x1, y1 ) );
            }
        }
    }

    ll k = 0, mm = n * n;
    for(ll i = mm/2; i >= 1; i /= 2) 
        while(i + k <= mm && can(i+k)) 
            k += i;

    /* if ( !asdasd ) cout << -1;
    else */ cout << k;
}

Subtask #1
84.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 212 ms 14200 KB Output is correct
8 Incorrect 2 ms 512 KB Output isn't correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 3 ms 512 KB Output is correct
11 Correct 2 ms 512 KB Output is correct
12 Correct 3 ms 896 KB Output is correct
13 Correct 3 ms 640 KB Output is correct
14 Incorrect 3 ms 896 KB Output isn't correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 2 ms 512 KB Output is correct
17 Correct 3 ms 640 KB Output is correct
18 Correct 2 ms 512 KB Output is correct
19 Correct 2 ms 640 KB Output is correct
20 Correct 3 ms 640 KB Output is correct
21 Correct 2 ms 768 KB Output is correct
22 Correct 3 ms 768 KB Output is correct
23 Correct 2 ms 768 KB Output is correct
24 Correct 3 ms 768 KB Output is correct
25 Correct 3 ms 896 KB Output is correct
26 Correct 4 ms 1024 KB Output is correct
27 Correct 3 ms 1024 KB Output is correct
28 Correct 3 ms 1024 KB Output is correct
29 Correct 3 ms 1024 KB Output is correct
30 Correct 3 ms 1024 KB Output is correct
31 Correct 3 ms 1020 KB Output is correct
32 Correct 3 ms 1024 KB Output is correct
33 Correct 15 ms 5376 KB Output is correct
34 Correct 15 ms 5376 KB Output is correct
35 Correct 47 ms 5496 KB Output is correct
36 Correct 19 ms 6528 KB Output is correct
37 Correct 23 ms 6400 KB Output is correct
38 Correct 65 ms 6392 KB Output is correct
39 Correct 24 ms 7552 KB Output is correct
40 Correct 31 ms 7800 KB Output is correct
41 Correct 92 ms 7544 KB Output is correct
42 Correct 28 ms 8696 KB Output is correct
43 Correct 31 ms 8824 KB Output is correct
44 Correct 146 ms 8824 KB Output is correct
45 Correct 32 ms 9596 KB Output is correct
46 Correct 34 ms 9720 KB Output is correct
47 Correct 107 ms 9592 KB Output is correct
48 Correct 38 ms 10488 KB Output is correct
49 Correct 47 ms 10488 KB Output is correct
50 Correct 127 ms 10488 KB Output is correct
51 Correct 46 ms 11268 KB Output is correct
52 Correct 48 ms 11256 KB Output is correct
53 Correct 174 ms 11316 KB Output is correct
54 Correct 52 ms 12152 KB Output is correct
55 Correct 51 ms 12152 KB Output is correct
56 Correct 189 ms 12152 KB Output is correct
57 Correct 59 ms 13176 KB Output is correct
58 Correct 65 ms 13048 KB Output is correct
59 Correct 259 ms 13048 KB Output is correct
60 Correct 65 ms 13816 KB Output is correct
61 Correct 63 ms 13944 KB Output is correct
62 Correct 234 ms 13816 KB Output is correct
63 Correct 184 ms 13944 KB Output is correct
64 Correct 327 ms 14032 KB Output is correct
65 Correct 259 ms 13816 KB Output is correct
66 Correct 254 ms 13944 KB Output is correct
67 Incorrect 200 ms 13816 KB Output isn't correct
68 Correct 102 ms 13944 KB Output is correct
69 Correct 104 ms 13944 KB Output is correct
70 Correct 84 ms 13944 KB Output is correct
71 Correct 108 ms 13976 KB Output is correct
72 Correct 80 ms 13816 KB Output is correct
73 Correct 83 ms 14272 KB Output is correct
74 Correct 151 ms 14528 KB Output is correct
75 Correct 196 ms 14460 KB Output is correct
76 Correct 193 ms 14400 KB Output is correct
77 Correct 225 ms 14272 KB Output is correct
78 Incorrect 150 ms 14320 KB Output isn't correct
79 Correct 119 ms 14492 KB Output is correct
80 Correct 216 ms 14320 KB Output is correct
81 Correct 163 ms 14320 KB Output is correct
82 Correct 150 ms 14300 KB Output is correct
83 Correct 171 ms 14328 KB Output is correct
84 Correct 172 ms 14328 KB Output is correct
85 Correct 190 ms 14456 KB Output is correct
86 Correct 189 ms 14400 KB Output is correct
87 Correct 171 ms 14328 KB Output is correct
88 Correct 151 ms 14324 KB Output is correct
89 Correct 221 ms 14196 KB Output is correct
90 Correct 186 ms 14232 KB Output is correct
91 Correct 214 ms 14200 KB Output is correct
92 Correct 223 ms 14196 KB Output is correct