#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
#define pb push_back
#define F first
#define S second
#define endl "\n"
const int INF = 1e9+10;
const int MOD = 1e9+7;
int n, m;
string s[3030];
int sumi[3030][3030], sumo[3030][3030];
int32_t main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cin >> n >> m;
for(int i = 0; i < n; i++) {
cin >> s[i];
}
for(int i = 0; i < n; i++) {
int at = 0;
for(int j = 0; j < m; j++) {
if(s[i][j] == 'O') at++;
sumo[i][j] = at;
}
}
for(int i = 0; i < m; i++) {
int at = 0;
for(int j = 0; j < n; j++) {
if(s[j][i] == 'I') at++;
sumi[j][i] = at;
}
}
int resp = 0;
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++) {
if(s[i][j] == 'J') {
int ci = sumi[n-1][j] - sumi[i][j];
int co = sumo[i][m-1] - sumo[i][j];
resp += ci * co;
}
}
}
cout << resp << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
432 KB |
Output is correct |
3 |
Correct |
1 ms |
436 KB |
Output is correct |
4 |
Correct |
1 ms |
428 KB |
Output is correct |
5 |
Correct |
1 ms |
1364 KB |
Output is correct |
6 |
Correct |
1 ms |
1364 KB |
Output is correct |
7 |
Incorrect |
1 ms |
1236 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
432 KB |
Output is correct |
3 |
Correct |
1 ms |
436 KB |
Output is correct |
4 |
Correct |
1 ms |
428 KB |
Output is correct |
5 |
Correct |
1 ms |
1364 KB |
Output is correct |
6 |
Correct |
1 ms |
1364 KB |
Output is correct |
7 |
Incorrect |
1 ms |
1236 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
432 KB |
Output is correct |
3 |
Correct |
1 ms |
436 KB |
Output is correct |
4 |
Correct |
1 ms |
428 KB |
Output is correct |
5 |
Correct |
1 ms |
1364 KB |
Output is correct |
6 |
Correct |
1 ms |
1364 KB |
Output is correct |
7 |
Incorrect |
1 ms |
1236 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |