#include "bits/stdc++.h"
using namespace std;
int main() {
int h, w;
cin >> h >> w;
string arr[h];
for (int i=0; i<h; i++) cin >> arr[i];
long long iron[h+1][w+1], orbs[h+1][w+1];
for (int i=0; i<h+1; i++) iron[i][0] = 0, orbs[i][0] = 0;
for (int i=0; i<w+1; i++) iron[0][i] = 0, orbs[0][i] = 0;
for (int i=0; i<h; i++) {
for (int j=0; j<w; j++) {
if (arr[i][j] == 'I') iron[i+1][j+1] = iron[i][j+1] + 1;
else iron[i+1][j+1] = iron[i][j+1];
if (arr[i][j] == 'O') orbs[i+1][j+1] = orbs[i+1][j] + 1;
else orbs[i+1][j+1] = orbs[i+1][j];
}
}
long long score = 0;
long long ik, jk;
for (int i=0; i<h; i++) {
for (int j=0; j<w; j++) {
if (arr[i][j] == 'J') {
// cout << "POS: " << i << ' ' << j << endl;
ik = i + 1;
jk = j + 1;
long long ot = iron[h][jk] - iron[ik][jk];
long long at = orbs[ik][w] - orbs[ik][jk];
score += (ot * at);
}
}
}
cout << score << endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
256 KB |
Output is correct |
| 3 |
Correct |
2 ms |
256 KB |
Output is correct |
| 4 |
Correct |
2 ms |
256 KB |
Output is correct |
| 5 |
Correct |
3 ms |
504 KB |
Output is correct |
| 6 |
Correct |
3 ms |
504 KB |
Output is correct |
| 7 |
Correct |
3 ms |
504 KB |
Output is correct |
| 8 |
Correct |
3 ms |
504 KB |
Output is correct |
| 9 |
Correct |
2 ms |
504 KB |
Output is correct |
| 10 |
Correct |
3 ms |
504 KB |
Output is correct |
| 11 |
Correct |
3 ms |
504 KB |
Output is correct |
| 12 |
Correct |
3 ms |
508 KB |
Output is correct |
| 13 |
Correct |
3 ms |
504 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
256 KB |
Output is correct |
| 3 |
Correct |
2 ms |
256 KB |
Output is correct |
| 4 |
Correct |
2 ms |
256 KB |
Output is correct |
| 5 |
Correct |
3 ms |
504 KB |
Output is correct |
| 6 |
Correct |
3 ms |
504 KB |
Output is correct |
| 7 |
Correct |
3 ms |
504 KB |
Output is correct |
| 8 |
Correct |
3 ms |
504 KB |
Output is correct |
| 9 |
Correct |
2 ms |
504 KB |
Output is correct |
| 10 |
Correct |
3 ms |
504 KB |
Output is correct |
| 11 |
Correct |
3 ms |
504 KB |
Output is correct |
| 12 |
Correct |
3 ms |
508 KB |
Output is correct |
| 13 |
Correct |
3 ms |
504 KB |
Output is correct |
| 14 |
Correct |
18 ms |
3832 KB |
Output is correct |
| 15 |
Correct |
2 ms |
376 KB |
Output is correct |
| 16 |
Correct |
12 ms |
2808 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
23 ms |
5064 KB |
Output is correct |
| 19 |
Correct |
20 ms |
4600 KB |
Output is correct |
| 20 |
Correct |
21 ms |
4856 KB |
Output is correct |
| 21 |
Correct |
23 ms |
4984 KB |
Output is correct |
| 22 |
Correct |
19 ms |
4600 KB |
Output is correct |
| 23 |
Correct |
20 ms |
4856 KB |
Output is correct |
| 24 |
Correct |
23 ms |
4984 KB |
Output is correct |
| 25 |
Correct |
20 ms |
4600 KB |
Output is correct |
| 26 |
Correct |
20 ms |
4856 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
256 KB |
Output is correct |
| 3 |
Correct |
2 ms |
256 KB |
Output is correct |
| 4 |
Correct |
2 ms |
256 KB |
Output is correct |
| 5 |
Correct |
3 ms |
504 KB |
Output is correct |
| 6 |
Correct |
3 ms |
504 KB |
Output is correct |
| 7 |
Correct |
3 ms |
504 KB |
Output is correct |
| 8 |
Correct |
3 ms |
504 KB |
Output is correct |
| 9 |
Correct |
2 ms |
504 KB |
Output is correct |
| 10 |
Correct |
3 ms |
504 KB |
Output is correct |
| 11 |
Correct |
3 ms |
504 KB |
Output is correct |
| 12 |
Correct |
3 ms |
508 KB |
Output is correct |
| 13 |
Correct |
3 ms |
504 KB |
Output is correct |
| 14 |
Correct |
18 ms |
3832 KB |
Output is correct |
| 15 |
Correct |
2 ms |
376 KB |
Output is correct |
| 16 |
Correct |
12 ms |
2808 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
23 ms |
5064 KB |
Output is correct |
| 19 |
Correct |
20 ms |
4600 KB |
Output is correct |
| 20 |
Correct |
21 ms |
4856 KB |
Output is correct |
| 21 |
Correct |
23 ms |
4984 KB |
Output is correct |
| 22 |
Correct |
19 ms |
4600 KB |
Output is correct |
| 23 |
Correct |
20 ms |
4856 KB |
Output is correct |
| 24 |
Correct |
23 ms |
4984 KB |
Output is correct |
| 25 |
Correct |
20 ms |
4600 KB |
Output is correct |
| 26 |
Correct |
20 ms |
4856 KB |
Output is correct |
| 27 |
Correct |
707 ms |
153256 KB |
Output is correct |
| 28 |
Correct |
5 ms |
888 KB |
Output is correct |
| 29 |
Correct |
51 ms |
12152 KB |
Output is correct |
| 30 |
Correct |
4 ms |
760 KB |
Output is correct |
| 31 |
Correct |
518 ms |
114040 KB |
Output is correct |
| 32 |
Correct |
667 ms |
160636 KB |
Output is correct |
| 33 |
Correct |
658 ms |
161096 KB |
Output is correct |
| 34 |
Correct |
603 ms |
131964 KB |
Output is correct |
| 35 |
Correct |
670 ms |
160612 KB |
Output is correct |
| 36 |
Correct |
658 ms |
161016 KB |
Output is correct |
| 37 |
Correct |
741 ms |
161656 KB |
Output is correct |
| 38 |
Correct |
466 ms |
113200 KB |
Output is correct |
| 39 |
Correct |
456 ms |
113412 KB |
Output is correct |
