제출 #855738

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
855738		vjudge1	Strah (COCI18_strah)	C++17	22 / 110	1080 ms	20048 KiB

strah

//author: Ahmet Alp Orakci
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

char getcharr() {
    char ch;
    cin >> ch;

    return ch;
}

#define ONLINE_JUDGE
void solve() {
    int n, m;
    cin >> n >> m;

    vector <vector <int>> pref(n +1, vector <int> (m +1, 0)); 
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            if(getcharr() == '#') {
                pref[i][j]++;
            }
        }
    }

    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            pref[i][j] += pref[i][j -1] + pref[i -1][j] - pref[i -1][j -1];
        }
    }

    auto get = [&](int x1, int y1, int x2, int y2) -> int {
        x1--;
        y1--;

        return pref[x2][y2] + pref[x1][y1] - pref[x2][y1] - pref[x1][y2];
    };

    i64 res = 0;
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            for(int k = 1; k <= i; k++) {
                for(int l = 1; l <= j; l++) {
                    for(int a = i; a <= n; a++) {
                        for(int b = j; b <= m; b++) {
                            if(get(k, l, a, b) == 0) {
                                //cerr << k << " " << l << " :: " << a << " " << b << " :: " << get(k, l, a, b) << "\n"; 
                                res++;
                            }
                        }
                    }
                }
            }
        }
    }

    cout << res << "\n";
    
    return;
}

signed main() {
    #ifndef ONLINE_JUDGE
        freopen(".in", "r", stdin);
        freopen(".out", "w", stdout);
    #endif

    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    int t = 1; //cin >> t;
    for(int i = 1; i <= t; i++) {
        solve();
    }

    return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 11
• Subtask 5: 0 / 11
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11
• Subtask 8: 0 / 11
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11