제출 #1258723

#제출 시각아이디문제언어결과실행 시간메모리
1258723hanguyenBitaro the Brave (JOI19_ho_t1)C++20
0 / 100
0 ms324 KiB
#include <bits/stdc++.h> #define int long long using namespace std; const int maxn = 3005; int row[maxn], col[maxn]; char a[maxn][maxn]; int n, m; signed main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n >> m; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cin >> a[i][j]; if (a[i][j] == 'O') row[i]++; if (a[i][j] == 'I') col[j]++; } } int res = 0; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { if (a[i][j] == 'J') res += row[i] * col[j]; } } cout << res; return 0; }
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