Submission #1036948

#	Time	Username	Problem	Language	Result	Execution time	Memory
1036948		inkvizytor	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	61 ms	19024 KiB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int h, w;
    cin >> h >> w;
    vector<string> m (h, "");
    for (int i = 0; i < h; i++) {
        cin >> m[i];
    }
    vector<long long> c (w, 0);
    long long r = 0;
    long long score = 0;
    for (int i = h-1; i >= 0; i--) {
        r = 0;
        for (int j = w-1; j >= 0; j--) {
            if (m[i][j] == 'J') {
                score += (long long)r*c[j];
            }
            else if (m[i][j] == 'O') {
                r++;
            }
            else {
                c[j]++;
            }
        }
    }
    cout << score << '\n';
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50