#include <iostream>
#include <vector>
#include <set>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <stdio.h>
#include <cmath>
#include <queue>
#include <string>
#include <map>
#include <fstream>
#include <complex>
#include <stack>
#include <set>
#define FOR(i,n) for(int i=0;i<n;i++)
#define FORE(i,a,b) for(int i=a;i<=b;i++)
#define ll long long int
#define vi vector<int>
#define ii pair<int,int>
#define pb push_back
#define mp make_pair
#define vv vector
#define ff first
#define ss second
#define pll pair<ll,ll>
#define cd complex<double>
#define ld long double
#define pld pair<ld,ld>
#define iii pair<ii,int>
using namespace std;
const int MAXN = 3000;
const int MAXK = 100+10;
string s[MAXN];
ll tolow[MAXN][MAXN];
ll tori[MAXN][MAXN];
int main(){
int n,m;
cin >> n >> m;
FOR(i,n){
cin >> s[i];
}
FOR(j,m){
tolow[n-1][j] = s[n-1][j] == 'I';
for(int i = n-2;i>=0;i--){
tolow[i][j] = tolow[i+1][j] + (s[i][j] == 'I');
}
}
FOR(i,n){
tori[i][m-1] = s[i][m-1] == 'O';
for(int j = m-2;j>=0;j--){
tori[i][j] = tori[i][j+1] + (s[i][j] == 'O');
}
}
ll ans = 0;
FOR(i,n){
FOR(j,m){
if(s[i][j] == 'J')ans += tori[i][j]*tolow[i][j];
}
}
cout << ans << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
504 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
3 ms |
1400 KB |
Output is correct |
6 |
Correct |
3 ms |
1400 KB |
Output is correct |
7 |
Correct |
3 ms |
1272 KB |
Output is correct |
8 |
Correct |
3 ms |
1400 KB |
Output is correct |
9 |
Correct |
3 ms |
1400 KB |
Output is correct |
10 |
Correct |
3 ms |
1272 KB |
Output is correct |
11 |
Correct |
4 ms |
1400 KB |
Output is correct |
12 |
Correct |
3 ms |
1400 KB |
Output is correct |
13 |
Correct |
3 ms |
1272 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
504 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
3 ms |
1400 KB |
Output is correct |
6 |
Correct |
3 ms |
1400 KB |
Output is correct |
7 |
Correct |
3 ms |
1272 KB |
Output is correct |
8 |
Correct |
3 ms |
1400 KB |
Output is correct |
9 |
Correct |
3 ms |
1400 KB |
Output is correct |
10 |
Correct |
3 ms |
1272 KB |
Output is correct |
11 |
Correct |
4 ms |
1400 KB |
Output is correct |
12 |
Correct |
3 ms |
1400 KB |
Output is correct |
13 |
Correct |
3 ms |
1272 KB |
Output is correct |
14 |
Correct |
21 ms |
7928 KB |
Output is correct |
15 |
Correct |
5 ms |
3832 KB |
Output is correct |
16 |
Correct |
14 ms |
4856 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
26 ms |
9080 KB |
Output is correct |
19 |
Correct |
24 ms |
8696 KB |
Output is correct |
20 |
Correct |
24 ms |
8824 KB |
Output is correct |
21 |
Correct |
25 ms |
9080 KB |
Output is correct |
22 |
Correct |
24 ms |
8700 KB |
Output is correct |
23 |
Correct |
24 ms |
8952 KB |
Output is correct |
24 |
Correct |
26 ms |
9080 KB |
Output is correct |
25 |
Correct |
24 ms |
8696 KB |
Output is correct |
26 |
Correct |
24 ms |
8824 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
504 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
3 ms |
1400 KB |
Output is correct |
6 |
Correct |
3 ms |
1400 KB |
Output is correct |
7 |
Correct |
3 ms |
1272 KB |
Output is correct |
8 |
Correct |
3 ms |
1400 KB |
Output is correct |
9 |
Correct |
3 ms |
1400 KB |
Output is correct |
10 |
Correct |
3 ms |
1272 KB |
Output is correct |
11 |
Correct |
4 ms |
1400 KB |
Output is correct |
12 |
Correct |
3 ms |
1400 KB |
Output is correct |
13 |
Correct |
3 ms |
1272 KB |
Output is correct |
14 |
Correct |
21 ms |
7928 KB |
Output is correct |
15 |
Correct |
5 ms |
3832 KB |
Output is correct |
16 |
Correct |
14 ms |
4856 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
26 ms |
9080 KB |
Output is correct |
19 |
Correct |
24 ms |
8696 KB |
Output is correct |
20 |
Correct |
24 ms |
8824 KB |
Output is correct |
21 |
Correct |
25 ms |
9080 KB |
Output is correct |
22 |
Correct |
24 ms |
8700 KB |
Output is correct |
23 |
Correct |
24 ms |
8952 KB |
Output is correct |
24 |
Correct |
26 ms |
9080 KB |
Output is correct |
25 |
Correct |
24 ms |
8696 KB |
Output is correct |
26 |
Correct |
24 ms |
8824 KB |
Output is correct |
27 |
Correct |
904 ms |
158840 KB |
Output is correct |
28 |
Correct |
21 ms |
19452 KB |
Output is correct |
29 |
Correct |
56 ms |
14200 KB |
Output is correct |
30 |
Correct |
4 ms |
888 KB |
Output is correct |
31 |
Correct |
666 ms |
133536 KB |
Output is correct |
32 |
Correct |
912 ms |
159260 KB |
Output is correct |
33 |
Correct |
907 ms |
158712 KB |
Output is correct |
34 |
Correct |
776 ms |
154104 KB |
Output is correct |
35 |
Correct |
925 ms |
159316 KB |
Output is correct |
36 |
Correct |
907 ms |
158840 KB |
Output is correct |
37 |
Correct |
937 ms |
159228 KB |
Output is correct |
38 |
Correct |
658 ms |
133188 KB |
Output is correct |
39 |
Correct |
641 ms |
132832 KB |
Output is correct |