Submission #541526

#	Time	Username	Problem	Language	Result	Execution time	Memory
541526		happypotato	Bitaro the Brave (JOI19_ho_t1)	C++17	0 / 100	2 ms	340 KiB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;
#define ll long long
void init() {

}
void solve() {
    int h, w;
    cin >> h >> w;
    string a[h];
    for (int i = 0; i < h; i++) cin >> a[i];
    ll int ans = 0;
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            if (a[i][j] == 'J') {
                int cnt1 = 0, cnt2 = 0;
                for (int k = i + 1; k < h; k++) cnt1 += (a[k][j] == 'I');
                for (int k = j + 1; k < w; k++) cnt2 += (a[i][k] == 'O');
                ans += cnt1 * cnt2;
            }
        }
    }
    cout << ans << endl;
}
int main() {
    #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    #endif
    ios::sync_with_stdio(false); cin.tie(0);
    init();
    solve();
}

Compilation message (stderr)

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:27:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50