oj.uz

Submission #997945

# Submission time Handle Problem Language Result Execution time Memory
997945 2024-06-13T07:07:15 Z eloj Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 412 ms 215268 KB 
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define ll long long
#define pb push_back
#define pii pair<ll,ll>

ll psi[3001][3001], pso[3001][3001];
int main(){
    ll ans=0;
    ll n, m;
    cin >> n >> m;
    char c[n+1][m+1];
    vector <pii> pos;
    
    for(int i=0; i<n; i++){
        for(int j=0; j<m; j++){
            cin >> c[i][j];
            if(j>0) pso[i][j]=pso[i][j-1];
            if(i>0) psi[i][j]=psi[i-1][j];
            if(c[i][j] == 'J') pos.pb({i,j});
            else if(c[i][j] == 'O'){
                if(j>0) pso[i][j]++;
                else pso[i][j]=1;
            }
            else{
                if(i>0) psi[i][j]++;
                else psi[i][j]=1;
            }
        }
    }
    // for(int i=0; i<n; i++){
    //     cout << psi[i][0] << " ";
    // }
    for(auto x:pos){
        ll a=x.ff, b=x.ss;
        ll I=psi[n-1][b]-psi[a][b], O=pso[a][m-1]-pso[a][b];
        // cout << I*O << endl;
        ans+=I*O;
    }
    cout << ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 5152 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1 ms 7004 KB Output is correct
12 Correct 1 ms 6748 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 5152 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1 ms 7004 KB Output is correct
12 Correct 1 ms 6748 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 11 ms 20432 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 6 ms 13008 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 14 ms 19684 KB Output is correct
19 Correct 11 ms 25600 KB Output is correct
20 Correct 11 ms 17868 KB Output is correct
21 Correct 14 ms 22472 KB Output is correct
22 Correct 13 ms 18124 KB Output is correct
23 Correct 12 ms 17864 KB Output is correct
24 Correct 14 ms 24280 KB Output is correct
25 Correct 10 ms 24276 KB Output is correct
26 Correct 11 ms 17928 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 5152 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1 ms 7004 KB Output is correct
12 Correct 1 ms 6748 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 11 ms 20432 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 6 ms 13008 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 14 ms 19684 KB Output is correct
19 Correct 11 ms 25600 KB Output is correct
20 Correct 11 ms 17868 KB Output is correct
21 Correct 14 ms 22472 KB Output is correct
22 Correct 13 ms 18124 KB Output is correct
23 Correct 12 ms 17864 KB Output is correct
24 Correct 14 ms 24280 KB Output is correct
25 Correct 10 ms 24276 KB Output is correct
26 Correct 11 ms 17928 KB Output is correct
27 Correct 392 ms 193668 KB Output is correct
28 Correct 10 ms 63700 KB Output is correct
29 Correct 23 ms 19164 KB Output is correct
30 Correct 2 ms 2908 KB Output is correct
31 Correct 295 ms 162992 KB Output is correct
32 Correct 361 ms 172336 KB Output is correct
33 Correct 329 ms 205464 KB Output is correct
34 Correct 347 ms 199836 KB Output is correct
35 Correct 396 ms 204440 KB Output is correct
36 Correct 318 ms 205208 KB Output is correct
37 Correct 412 ms 215268 KB Output is correct
38 Correct 204 ms 142756 KB Output is correct
39 Correct 199 ms 161944 KB Output is correct