Submission #71820

#	Time	Username	Problem	Language	Result	Execution time	Memory
71820		내일_개학이다_ㅠㅠ (#119)	Angelic Hourglass (FXCUP3_hourglass)	C++17	100 / 100	3 ms	596 KiB

hourglass

#include<bits/stdc++.h>
using namespace std;

int main(){
    int n;
    scanf("%d", &n);
    if(n == 4) printf("-1\n");
    else if(n == 7) printf("4\n");
    else if(n%5 == 0) printf("%d\n", n/5);
    else if(n%5 == 1) printf("%d\n", n/5+1);
    else if(n%5 == 2) printf("%d\n", n/5+2);
    else if(n%5 == 3) printf("%d\n", n/5+1);
    else if(n%5 == 4) printf("%d\n", n/5+2);
}

Compilation message (stderr)

hourglass.cpp: In function 'int main()':
hourglass.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~

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