#pragma GCC optimize("O3", "inline")
#include <bits/stdc++.h>
using namespace std;
#define all(v) v.begin(), v.end()
#define ins insert
#define pb push_back
#define int long long
#define pii pair<int, int>
#define endl '\n'
#define drop(x) cout<<(x)<<endl;return;
#define reach cerr << "reached >.<!" << endl;
/*
m : 11059739 -> l ~23
p : 4567896467
*/
// mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
const int mod = 1e9 + 7, sze = 1e6 + 50, inf = LLONG_MAX, prime = 2333;
//\\
dp / binary search / greedy / sprase table / segment tree
//
int rowo[sze];
int coli[sze];
void gkd(){
int n,m;
cin>>n>>m;
vector<vector<char>> arr(n+1,vector<char>(m+1));
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
cin>>arr[i][j];
}
}
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(arr[i][j]=='O'){
rowo[i]++;
}
else if(arr[i][j]=='I'){
coli[j]++;
}
}
}
int ans=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(arr[i][j]=='I'){
coli[j]--;
}
}
for(int j=1;j<=m;j++){
if(arr[i][j]=='J'){
// cout<<i<<" "<<j<<" "<<rowo[i]*coli[j]<<endl;
ans+= rowo[i] * coli[j];
}
else if(arr[i][j]=='O'){
rowo[i]--;
}
}
}
drop(ans);
}
signed main() {
cin.tie(0)->sync_with_stdio(0);
int tt = 1; //cin>>tt;
while (tt--)gkd();
}
Compilation message
joi2019_ho_t1.cpp:19:1: warning: multi-line comment [-Wcomment]
19 | //\\
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2520 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2392 KB |
Output is correct |
7 |
Correct |
1 ms |
2392 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
2 ms |
2392 KB |
Output is correct |
11 |
Correct |
2 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2520 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2392 KB |
Output is correct |
7 |
Correct |
1 ms |
2392 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
2 ms |
2392 KB |
Output is correct |
11 |
Correct |
2 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
6 ms |
2908 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
3 ms |
2652 KB |
Output is correct |
17 |
Correct |
1 ms |
2512 KB |
Output is correct |
18 |
Correct |
7 ms |
2908 KB |
Output is correct |
19 |
Correct |
4 ms |
2908 KB |
Output is correct |
20 |
Correct |
3 ms |
3160 KB |
Output is correct |
21 |
Correct |
7 ms |
2904 KB |
Output is correct |
22 |
Correct |
4 ms |
2904 KB |
Output is correct |
23 |
Correct |
5 ms |
2908 KB |
Output is correct |
24 |
Correct |
7 ms |
2908 KB |
Output is correct |
25 |
Correct |
4 ms |
2908 KB |
Output is correct |
26 |
Correct |
5 ms |
2916 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2520 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2392 KB |
Output is correct |
7 |
Correct |
1 ms |
2392 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
2 ms |
2392 KB |
Output is correct |
11 |
Correct |
2 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
6 ms |
2908 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
3 ms |
2652 KB |
Output is correct |
17 |
Correct |
1 ms |
2512 KB |
Output is correct |
18 |
Correct |
7 ms |
2908 KB |
Output is correct |
19 |
Correct |
4 ms |
2908 KB |
Output is correct |
20 |
Correct |
3 ms |
3160 KB |
Output is correct |
21 |
Correct |
7 ms |
2904 KB |
Output is correct |
22 |
Correct |
4 ms |
2904 KB |
Output is correct |
23 |
Correct |
5 ms |
2908 KB |
Output is correct |
24 |
Correct |
7 ms |
2908 KB |
Output is correct |
25 |
Correct |
4 ms |
2908 KB |
Output is correct |
26 |
Correct |
5 ms |
2916 KB |
Output is correct |
27 |
Correct |
214 ms |
19104 KB |
Output is correct |
28 |
Correct |
3 ms |
2520 KB |
Output is correct |
29 |
Correct |
11 ms |
3764 KB |
Output is correct |
30 |
Correct |
2 ms |
2392 KB |
Output is correct |
31 |
Correct |
157 ms |
14836 KB |
Output is correct |
32 |
Correct |
114 ms |
20112 KB |
Output is correct |
33 |
Correct |
98 ms |
20112 KB |
Output is correct |
34 |
Correct |
173 ms |
16716 KB |
Output is correct |
35 |
Correct |
114 ms |
20036 KB |
Output is correct |
36 |
Correct |
98 ms |
20052 KB |
Output is correct |
37 |
Correct |
199 ms |
20272 KB |
Output is correct |
38 |
Correct |
76 ms |
14676 KB |
Output is correct |
39 |
Correct |
71 ms |
14548 KB |
Output is correct |