Submission #71656

#	Time	Username	Problem	Language	Result	Execution time	Memory
71656		team (#119)	Angelic Hourglass (FXCUP3_hourglass)	C++98	0 / 100	3 ms	868 KiB

hourglass

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;scanf("%d",&n);
    int ans=1e9;
    for(int i=1;i<=n/3; i++){
        if(!((n-3*i)%5)){
            ans=min(ans,i+(n-3*i)/5);
        }
    }
    if(ans>=1e9) ans=-1;
    printf("%d\n",ans);
    return 0;
}

Compilation message (stderr)

hourglass.cpp: In function 'int main()':
hourglass.cpp:4:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     int n;scanf("%d",&n);
           ~~~~~^~~~~~~~~

• Subtask 1: 0 / 17
• Subtask 2: 0 / 42
• Subtask 3: 0 / 41