#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
template<typename ...Args>
void logger(string vars, Args&&... values) {
cerr<<vars<<" = ";
string delim="";
(...,(cerr<<delim<<values,delim=", "));
cerr<<"\n";
}
#else
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
template<typename ...Args>
void logger(string vars, Args&&... values) {}
#endif
#define FOR(i,j,n) for(int i=j;i<n;i++)
#define pb push_back
#define sz(x) (int)(x.size())
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
template<typename T> inline void maxa(T& a,T b){a=max(a,b);}
template<typename T> inline void mina(T& a,T b){a=min(a,b);}
const int mxN=5e3+5;
int psaO[mxN][mxN],psaI[mxN][mxN];
char grid[mxN][mxN];
int main(){
cin.sync_with_stdio(0);
cin.tie(0); cout.tie(0);
#ifdef LOCAL
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
#endif
int n,m; cin>>n>>m;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
cin>>grid[i][j];
if(grid[i][j]=='O')
psaO[i][j]=1;
else if(grid[i][j]=='I')
psaI[j][i]=1;
psaO[i][j]+=psaO[i][j-1];
psaI[j][i]+=psaI[j][i-1];
}
}
ll ans=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(grid[i][j]!='J')
continue;
ll Ocnt=psaO[i][m]-psaO[i][j];
ll Icnt=psaI[j][n]-psaI[j][i];
ans+=Ocnt*Icnt;
}
}
cout<<ans<<"\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
2 ms |
1612 KB |
Output is correct |
6 |
Correct |
1 ms |
1476 KB |
Output is correct |
7 |
Correct |
1 ms |
1484 KB |
Output is correct |
8 |
Correct |
2 ms |
1612 KB |
Output is correct |
9 |
Correct |
1 ms |
1484 KB |
Output is correct |
10 |
Correct |
1 ms |
1484 KB |
Output is correct |
11 |
Correct |
2 ms |
1612 KB |
Output is correct |
12 |
Correct |
2 ms |
1484 KB |
Output is correct |
13 |
Correct |
1 ms |
1484 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
2 ms |
1612 KB |
Output is correct |
6 |
Correct |
1 ms |
1476 KB |
Output is correct |
7 |
Correct |
1 ms |
1484 KB |
Output is correct |
8 |
Correct |
2 ms |
1612 KB |
Output is correct |
9 |
Correct |
1 ms |
1484 KB |
Output is correct |
10 |
Correct |
1 ms |
1484 KB |
Output is correct |
11 |
Correct |
2 ms |
1612 KB |
Output is correct |
12 |
Correct |
2 ms |
1484 KB |
Output is correct |
13 |
Correct |
1 ms |
1484 KB |
Output is correct |
14 |
Correct |
11 ms |
7756 KB |
Output is correct |
15 |
Correct |
2 ms |
3788 KB |
Output is correct |
16 |
Correct |
7 ms |
5720 KB |
Output is correct |
17 |
Correct |
1 ms |
1612 KB |
Output is correct |
18 |
Correct |
15 ms |
8784 KB |
Output is correct |
19 |
Correct |
11 ms |
8652 KB |
Output is correct |
20 |
Correct |
13 ms |
8636 KB |
Output is correct |
21 |
Correct |
14 ms |
8760 KB |
Output is correct |
22 |
Correct |
11 ms |
8652 KB |
Output is correct |
23 |
Correct |
11 ms |
8652 KB |
Output is correct |
24 |
Correct |
14 ms |
8780 KB |
Output is correct |
25 |
Correct |
10 ms |
8652 KB |
Output is correct |
26 |
Correct |
10 ms |
8652 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
2 ms |
1612 KB |
Output is correct |
6 |
Correct |
1 ms |
1476 KB |
Output is correct |
7 |
Correct |
1 ms |
1484 KB |
Output is correct |
8 |
Correct |
2 ms |
1612 KB |
Output is correct |
9 |
Correct |
1 ms |
1484 KB |
Output is correct |
10 |
Correct |
1 ms |
1484 KB |
Output is correct |
11 |
Correct |
2 ms |
1612 KB |
Output is correct |
12 |
Correct |
2 ms |
1484 KB |
Output is correct |
13 |
Correct |
1 ms |
1484 KB |
Output is correct |
14 |
Correct |
11 ms |
7756 KB |
Output is correct |
15 |
Correct |
2 ms |
3788 KB |
Output is correct |
16 |
Correct |
7 ms |
5720 KB |
Output is correct |
17 |
Correct |
1 ms |
1612 KB |
Output is correct |
18 |
Correct |
15 ms |
8784 KB |
Output is correct |
19 |
Correct |
11 ms |
8652 KB |
Output is correct |
20 |
Correct |
13 ms |
8636 KB |
Output is correct |
21 |
Correct |
14 ms |
8760 KB |
Output is correct |
22 |
Correct |
11 ms |
8652 KB |
Output is correct |
23 |
Correct |
11 ms |
8652 KB |
Output is correct |
24 |
Correct |
14 ms |
8780 KB |
Output is correct |
25 |
Correct |
10 ms |
8652 KB |
Output is correct |
26 |
Correct |
10 ms |
8652 KB |
Output is correct |
27 |
Correct |
550 ms |
113316 KB |
Output is correct |
28 |
Correct |
11 ms |
19296 KB |
Output is correct |
29 |
Correct |
42 ms |
18340 KB |
Output is correct |
30 |
Correct |
7 ms |
9808 KB |
Output is correct |
31 |
Correct |
371 ms |
87648 KB |
Output is correct |
32 |
Correct |
474 ms |
117720 KB |
Output is correct |
33 |
Correct |
524 ms |
117956 KB |
Output is correct |
34 |
Correct |
484 ms |
100048 KB |
Output is correct |
35 |
Correct |
527 ms |
117696 KB |
Output is correct |
36 |
Correct |
524 ms |
118028 KB |
Output is correct |
37 |
Correct |
572 ms |
118280 KB |
Output is correct |
38 |
Correct |
329 ms |
87176 KB |
Output is correct |
39 |
Correct |
376 ms |
87384 KB |
Output is correct |