제출 #1319210

#제출 시각아이디문제언어결과실행 시간메모리
1319210michael12Bitaro the Brave (JOI19_ho_t1)C++20
100 / 100
208 ms82444 KiB
#include<bits/stdc++.h> #define ff first #define ss second #define pb push_back #define mp make_pair #define int long long using namespace std; const int maxn = 5e5; const int inf = 1e18; signed main() { int n, m; cin >> n >> m; string S[n]; for(int i = 0; i < n; i++){ cin >> S[i]; } vector<int> T(n + 1), F(m + 1); vector<vector<int>> dp(n, vector<int>(m)); int ans = 0; for(int i = n - 1; i >= 0; i--){ for(int j = m - 1; j >= 0; j--){ if(S[i][j] == 'J'){ ans += T[i] * F[j]; } else if(S[i][j] == 'O'){ T[i] += 1; } else{ F[j] += 1; } } } cout << ans; }
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