#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize("-Ofast")
#include <bits/stdc++.h>
#include <algorithm>
#include <iostream>
#include <vector>
#include <limits>
#include <cmath>
#include <stack>
#include <queue>
#include <map>
#include <math.h>
using namespace std;
using ll = long long;
void solve(){
ll h, w;
cin >> h >> w;
vector<string> grid(h);
for(ll i = 0; i < h; i++){
cin >> grid[i];
}
ll total = 0;
vector<vector<pair<ll, ll>>> grid_val(h + 1, vector<pair<ll, ll>>(w + 1, pair<ll,ll>{0, 0})); // Orbs, Ignots
for(ll i = h - 1; i >= 0; i--){
for(ll j = w - 1; j >= 0; j--){
grid_val[i][j].first = grid_val[i][j + 1].first;
grid_val[i][j].second = grid_val[i + 1][j].second;
if(grid[i][j] == 'O'){
grid_val[i][j].first += 1;
}else if(grid[i][j] == 'I'){
grid_val[i][j].second += 1;
}else{
total += grid_val[i][j].first * grid_val[i][j].second;
}
}
}
cout << total << endl;
}
int main(){
ios_base::sync_with_stdio(false);
cout.tie(0);
cin.tie(0);
ll t = 1;
while(t--){
solve();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
376 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 |
604 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
376 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 |
604 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
14 |
Correct |
2 ms |
3796 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
2 ms |
2652 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
3 ms |
4832 KB |
Output is correct |
19 |
Correct |
3 ms |
4560 KB |
Output is correct |
20 |
Correct |
3 ms |
4696 KB |
Output is correct |
21 |
Correct |
3 ms |
4696 KB |
Output is correct |
22 |
Correct |
3 ms |
4700 KB |
Output is correct |
23 |
Correct |
3 ms |
4692 KB |
Output is correct |
24 |
Correct |
3 ms |
4952 KB |
Output is correct |
25 |
Correct |
3 ms |
4700 KB |
Output is correct |
26 |
Correct |
3 ms |
4848 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
376 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 |
604 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
14 |
Correct |
2 ms |
3796 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
2 ms |
2652 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
3 ms |
4832 KB |
Output is correct |
19 |
Correct |
3 ms |
4560 KB |
Output is correct |
20 |
Correct |
3 ms |
4696 KB |
Output is correct |
21 |
Correct |
3 ms |
4696 KB |
Output is correct |
22 |
Correct |
3 ms |
4700 KB |
Output is correct |
23 |
Correct |
3 ms |
4692 KB |
Output is correct |
24 |
Correct |
3 ms |
4952 KB |
Output is correct |
25 |
Correct |
3 ms |
4700 KB |
Output is correct |
26 |
Correct |
3 ms |
4848 KB |
Output is correct |
27 |
Correct |
81 ms |
151056 KB |
Output is correct |
28 |
Correct |
1 ms |
856 KB |
Output is correct |
29 |
Correct |
6 ms |
11868 KB |
Output is correct |
30 |
Correct |
1 ms |
860 KB |
Output is correct |
31 |
Correct |
58 ms |
111332 KB |
Output is correct |
32 |
Correct |
94 ms |
159060 KB |
Output is correct |
33 |
Correct |
84 ms |
159668 KB |
Output is correct |
34 |
Correct |
72 ms |
129308 KB |
Output is correct |
35 |
Correct |
83 ms |
159104 KB |
Output is correct |
36 |
Correct |
89 ms |
159672 KB |
Output is correct |
37 |
Correct |
87 ms |
160140 KB |
Output is correct |
38 |
Correct |
57 ms |
110620 KB |
Output is correct |
39 |
Correct |
63 ms |
110732 KB |
Output is correct |