#include <bits/stdc++.h>
#define FOR(i,x,n) for(int i=x; i<n; i++)
#define F0R(i,n) FOR(i,0,n)
#define ROF(i,x,n) for(int i=n-1; i>=x; i--)
#define R0F(i,n) ROF(i,0,n)
#define WTF cout << "WTF" << endl
#define IOS ios::sync_with_stdio(false); cin.tie(0)
#define F first
#define S second
#define pb push_back
#define ALL(x) x.begin(), x.end()
#define RALL(x) x.rbegin(), x.rend()
using namespace std;
typedef long long LL;
typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;
typedef vector<int> VI;
typedef vector<LL> VLL;
typedef vector<PII> VPII;
typedef vector<PLL> VPLL;
const int N = 3000 + 7;
const int ALPHA = 27;
const int INF = 1e9 + 7;
const int MOD = 1e9 + 7;
const int LOG = 22;
int n, m;
LL ups[N][N], rps[N][N];
char grid[N][N];
int main() {
IOS;
cin >> n >> m;
F0R(i, n) F0R(j, m) cin >> grid[i][j];
F0R(i, n) {
rps[i][m - 1] = (grid[i][m - 1] == 'O');
R0F(j, m - 1) rps[i][j] = rps[i][j + 1] + (grid[i][j] == 'O');
}
F0R(j, m) {
ups[n - 1][j] = (grid[n - 1][j] == 'I');
R0F(i, n - 1) ups[i][j] = ups[i + 1][j] + (grid[i][j] == 'I');
}
LL ans = 0;
F0R(i, n) F0R(j, m) if (grid[i][j] == 'J') ans += ups[i][j] * rps[i][j];
cout << ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 13 |
Correct |
2 ms |
1364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 13 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 14 |
Correct |
8 ms |
8916 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5064 KB |
Output is correct |
| 16 |
Correct |
5 ms |
5328 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
9 ms |
9944 KB |
Output is correct |
| 19 |
Correct |
9 ms |
9832 KB |
Output is correct |
| 20 |
Correct |
9 ms |
9772 KB |
Output is correct |
| 21 |
Correct |
9 ms |
9940 KB |
Output is correct |
| 22 |
Correct |
8 ms |
9812 KB |
Output is correct |
| 23 |
Correct |
9 ms |
9768 KB |
Output is correct |
| 24 |
Correct |
10 ms |
9940 KB |
Output is correct |
| 25 |
Correct |
8 ms |
9812 KB |
Output is correct |
| 26 |
Correct |
10 ms |
9788 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 13 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 14 |
Correct |
8 ms |
8916 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5064 KB |
Output is correct |
| 16 |
Correct |
5 ms |
5328 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
9 ms |
9944 KB |
Output is correct |
| 19 |
Correct |
9 ms |
9832 KB |
Output is correct |
| 20 |
Correct |
9 ms |
9772 KB |
Output is correct |
| 21 |
Correct |
9 ms |
9940 KB |
Output is correct |
| 22 |
Correct |
8 ms |
9812 KB |
Output is correct |
| 23 |
Correct |
9 ms |
9768 KB |
Output is correct |
| 24 |
Correct |
10 ms |
9940 KB |
Output is correct |
| 25 |
Correct |
8 ms |
9812 KB |
Output is correct |
| 26 |
Correct |
10 ms |
9788 KB |
Output is correct |
| 27 |
Correct |
353 ms |
158632 KB |
Output is correct |
| 28 |
Correct |
10 ms |
26324 KB |
Output is correct |
| 29 |
Correct |
19 ms |
13868 KB |
Output is correct |
| 30 |
Correct |
1 ms |
720 KB |
Output is correct |
| 31 |
Correct |
276 ms |
131572 KB |
Output is correct |
| 32 |
Correct |
352 ms |
159180 KB |
Output is correct |
| 33 |
Correct |
341 ms |
158580 KB |
Output is correct |
| 34 |
Correct |
308 ms |
152396 KB |
Output is correct |
| 35 |
Correct |
342 ms |
159096 KB |
Output is correct |
| 36 |
Correct |
379 ms |
158672 KB |
Output is correct |
| 37 |
Correct |
399 ms |
159180 KB |
Output is correct |
| 38 |
Correct |
251 ms |
130764 KB |
Output is correct |
| 39 |
Correct |
249 ms |
130940 KB |
Output is correct |
