Submission #938151

#	Time	Username	Problem	Language	Result	Execution time	Memory
938151		LittleOrange	Bitaro the Brave (JOI19_ho_t1)	C++17	0 / 100	1 ms	348 KiB

joi2019_ho_t1

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    ll h,w;
    cin >> h >> w;
    vector<string> a(h);
    for(auto &o : a) cin >> o;
    vector<ll> orb(h,0),ingot(w,0);
    for(ll i = 0;i<h;i++){
        for(ll j = 0;j<w;j++){
            if (a[i][j]=='O') orb[i]++;
            if (a[i][j]=='I') ingot[j]++;
        }
    }
    ll ans = 0;
    for(ll i = 0;i<h;i++){
        for(ll j = 0;j<w;j++){
            if (a[i][j]=='J') ans += orb[i]*ingot[j]; 
        }
    }
    cout << ans << "\n";
}

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