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Submission #574052

# Submission time Handle Problem Language Result Execution time Memory
574052 2022-06-07T16:11:59 Z Ronin13 Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 723 ms 88304 KB 
#include<bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define f first
#define s second
#define pll pair<ll,ll>
#define pii pair<int,int>
#define pb push_back
#define epb emplace_back
using namespace std;

int prefr[3001][3001], prefc[3001][3001];

int main(){
    int n, m; cin >> n >> m;
    char c[n + 1][m + 1];
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= m; j++) cin >> c[i][j];
    }
    for(int i = 1; i <= n; i++){
        prefr[i][0] = 0;
        for(int j = 1; j <= m; j++) {
            prefr[i][j] = prefr[i][j - 1];
            if(c[i][j] == 'O') prefr[i][j]++;
        }
    }
    for(int j = 1; j <= m; j++){
        prefc[0][j] = 0;
        for(int i = 1; i <= n; i++){
            prefc[i][j] = prefc[i - 1][j];
            if(c[i][j] == 'I') prefc[i][j]++;
        }
    }
    ll ans = 0;
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= m; j++){
            if(c[i][j] == 'J'){
                ll x = prefr[i][m] - prefr[i][j];
                ll y = prefc[n][j] - prefc[i][j];
                ans += x  * y;
            }
        }
    }
    cout << ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 2 ms 1216 KB Output is correct
9 Correct 1 ms 1080 KB Output is correct
10 Correct 2 ms 1108 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 1108 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 2 ms 1216 KB Output is correct
9 Correct 1 ms 1080 KB Output is correct
10 Correct 2 ms 1108 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 1108 KB Output is correct
14 Correct 15 ms 6100 KB Output is correct
15 Correct 2 ms 3668 KB Output is correct
16 Correct 9 ms 3540 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 18 ms 6668 KB Output is correct
19 Correct 17 ms 6596 KB Output is correct
20 Correct 18 ms 6588 KB Output is correct
21 Correct 20 ms 6704 KB Output is correct
22 Correct 17 ms 6588 KB Output is correct
23 Correct 17 ms 6612 KB Output is correct
24 Correct 19 ms 6740 KB Output is correct
25 Correct 17 ms 6528 KB Output is correct
26 Correct 17 ms 6540 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 2 ms 1216 KB Output is correct
9 Correct 1 ms 1080 KB Output is correct
10 Correct 2 ms 1108 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 1108 KB Output is correct
14 Correct 15 ms 6100 KB Output is correct
15 Correct 2 ms 3668 KB Output is correct
16 Correct 9 ms 3540 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 18 ms 6668 KB Output is correct
19 Correct 17 ms 6596 KB Output is correct
20 Correct 18 ms 6588 KB Output is correct
21 Correct 20 ms 6704 KB Output is correct
22 Correct 17 ms 6588 KB Output is correct
23 Correct 17 ms 6612 KB Output is correct
24 Correct 19 ms 6740 KB Output is correct
25 Correct 17 ms 6528 KB Output is correct
26 Correct 17 ms 6540 KB Output is correct
27 Correct 668 ms 87312 KB Output is correct
28 Correct 9 ms 19156 KB Output is correct
29 Correct 40 ms 7556 KB Output is correct
30 Correct 2 ms 572 KB Output is correct
31 Correct 486 ms 71160 KB Output is correct
32 Correct 663 ms 88252 KB Output is correct
33 Correct 654 ms 88192 KB Output is correct
34 Correct 567 ms 82504 KB Output is correct
35 Correct 665 ms 88184 KB Output is correct
36 Correct 671 ms 87996 KB Output is correct
37 Correct 723 ms 88304 KB Output is correct
38 Correct 460 ms 71220 KB Output is correct
39 Correct 443 ms 70940 KB Output is correct