Submission #334240

#	Time	Username	Problem	Language	Result	Execution time	Memory
334240		Tahmid690	Bitaro the Brave (JOI19_ho_t1)	C++14	0 / 100	1 ms	364 KiB

joi2019_ho_t1

#include<bits/stdc++.h>
using namespace std;
#define ll long long
int main(){
    int h,w;
    string s[3005];
    cin >> h >> w;
    for(int i=0;i<h;i++) cin >> s[i];
    unordered_map<ll,int> rows;
    unordered_map<ll,int> colum;
    for(int i=0;i<h;i++){
        ll x=0,y=0;
        for(int j=0;j<w;j++){
            if(s[i][j]=='O') x++;
            if(s[j][i]=='I') y++;
        }
        rows[i]=x;
        colum[i]=y;
    }
    ll ans=0;
    for(int i=0;i<h;i++){
        for(int j=0;j<w;j++){
            if(s[i][j]=='J') ans+=(rows[i]*colum[j]);
        }
    }
    cout << ans << endl;
    
}

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