oj.uz

Submission #881523

# Submission time Handle Problem Language Result Execution time Memory
881523 2023-12-01T11:21:34 Z andro Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 370 ms 154856 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n,m;
    cin>>n>>m;
    char a[n+1][m+1];
    for(int i=1;i<=n;i++)for(int j=1;j<=m;j++)cin>>a[i][j];
    //! (i,j)='j',(i,l)='o',(k,j)='i'
    int ans=0;
    int sufo[n+1][m+2];
    for(int i=0;i<=n;i++)for(int j=0;j<=m+1;j++)sufo[i][j]=0;
    for(int i=1;i<=n;i++){
        for(int j=m;j>=1;j--){
            sufo[i][j]=sufo[i][j+1];
            if(a[i][j]=='O')sufo[i][j]++;
        }
    }
    int sufi[n+2][m+1];
    for(int i=0;i<=n+1;i++)for(int j=0;j<=m;j++)sufi[i][j]=0;
    for(int i=1;i<=m;i++){
        for(int j=n;j>=1;j--){
            sufi[j][i]=sufi[j+1][i];
            if(a[j][i]=='I')sufi[j][i]++;
        }
    }
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            if(a[i][j]=='J'){
                /*
                int r=0;
                for(int k=j+1;k<=m;k++)if(a[i][k]=='O')r++;
                int r1=0;
                for(int k=i+1;k<=n;k++)if(a[k][j]=='I')r1++;
                ans+=r*r1;*/
                ans+=sufo[i][j+1]*sufi[i+1][j];
            }
        }
    }
    cout<<ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 460 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 460 KB Output is correct
14 Correct 6 ms 3672 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 4 ms 2652 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 7 ms 4696 KB Output is correct
19 Correct 6 ms 4700 KB Output is correct
20 Correct 6 ms 4700 KB Output is correct
21 Correct 7 ms 4952 KB Output is correct
22 Correct 6 ms 4700 KB Output is correct
23 Correct 6 ms 4708 KB Output is correct
24 Correct 8 ms 4648 KB Output is correct
25 Correct 6 ms 4700 KB Output is correct
26 Correct 6 ms 4768 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 460 KB Output is correct
14 Correct 6 ms 3672 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 4 ms 2652 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 7 ms 4696 KB Output is correct
19 Correct 6 ms 4700 KB Output is correct
20 Correct 6 ms 4700 KB Output is correct
21 Correct 7 ms 4952 KB Output is correct
22 Correct 6 ms 4700 KB Output is correct
23 Correct 6 ms 4708 KB Output is correct
24 Correct 8 ms 4648 KB Output is correct
25 Correct 6 ms 4700 KB Output is correct
26 Correct 6 ms 4768 KB Output is correct
27 Correct 332 ms 146260 KB Output is correct
28 Correct 1 ms 764 KB Output is correct
29 Correct 16 ms 11612 KB Output is correct
30 Correct 1 ms 1112 KB Output is correct
31 Correct 242 ms 107604 KB Output is correct
32 Correct 361 ms 154128 KB Output is correct
33 Correct 332 ms 154192 KB Output is correct
34 Correct 272 ms 124872 KB Output is correct
35 Correct 333 ms 153824 KB Output is correct
36 Correct 334 ms 154192 KB Output is correct
37 Correct 370 ms 154856 KB Output is correct
38 Correct 216 ms 107088 KB Output is correct
39 Correct 204 ms 107352 KB Output is correct