Submission #208227

#	Time	Username	Problem	Language	Result	Execution time	Memory
208227		jzh	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	195 ms	13048 KiB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll h,w,i,i1,x,y,sum=0;
    cin>>h>>w;
    ll orbs[h],ingots[w];
    for (i=0;i<h;i++)orbs[i]=0;
    for (i=0;i<w;i++)ingots[i]=0;
    char arr[h][w];
    for (i=0;i<h;i++){
        for (i1=0;i1<w;i1++){
            cin>>arr[i][i1];
        }
    }
    for (i=h-1;i>=0;i--){
        for (i1=w-1;i1>=0;i1--){
            char c;
            c=arr[i][i1];
            if (c=='J'){
                sum+=ingots[i1]*orbs[i];
            }
            else if (c=='O'){
                orbs[i]++;
            }
            else {
                ingots[i1]++;
            }
        }
    }
    cout<<sum<<'\n';

}

Compilation message (stderr)

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:7:17: warning: unused variable 'x' [-Wunused-variable]
     ll h,w,i,i1,x,y,sum=0;
                 ^
joi2019_ho_t1.cpp:7:19: warning: unused variable 'y' [-Wunused-variable]
     ll h,w,i,i1,x,y,sum=0;
                   ^

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