Submission #71805

#	Time	Username	Problem	Language	Result	Execution time	Memory
71805		the_general (#119)	Angelic Hourglass (FXCUP3_hourglass)	C++11	58 / 100	4 ms	560 KiB

hourglass

#include<stdio.h>

int n;

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

Compilation message (stderr)

hourglass.cpp: In function 'int main()':
hourglass.cpp:6:7: 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: 0 / 42
• Subtask 3: 41 / 41