Submission #997902

#	Time	Username	Problem	Language	Result	Execution time	Memory
997902		eloj	Bitaro the Brave (JOI19_ho_t1)	C++14	50 / 100	1025 ms	74640 KiB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define ll long long
#define pb push_back
#define pii pair<ll,ll>

int main(){
    ll ans=0;
    ll n, m;
    cin >> n >> m;
    char c[n+1][m+1];
    vector <pii> pos;
    for(int i=0; i<n; i++){
        for(int j=0; j<m; j++){
            cin >> c[i][j];
            if(c[i][j] == 'J') pos.pb({i,j});
        }
    }
    for(auto x:pos){
        ll a=x.ff, b=x.ss, I=0, O=0;
        for(int i=a; i<n; i++){
            if(c[i][b] == 'I') I++;
        }
        for(int i=b; i<m; i++){
            if(c[a][i] == 'O') O++;
        }
        ans+=I*O;
    }
    cout << ans;
}

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