Submission #24776

#	Time	Username	Problem	Language	Result	Execution time	Memory
24776		taehoon1018	사회적 불평등 (TOKI14_social)	C11	29 / 100	300 ms	1780 KiB

social

#include<stdio.h>
int abs(int x){
	if(x<0)
		return -x;
	else return x;
}
int main(){
	int N,L[100000],I[100000];
	int i,j,temp;
	long sum=0;
	scanf("%d",&N);
	for(i=0;i<N;i++)
		scanf("%d %d",&L[i],&I[i]);
	for(i=0;i<N;i++){
		for(j=i+1;j<N;j++){
			temp=(L[i]-L[j])*(I[i]-I[j]);
			sum+=abs(temp);
		}
	}
	printf("%ld",sum);
}

Compilation message (stderr)

social.c: In function 'main':
social.c:11:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&N);
  ^
social.c:13:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&L[i],&I[i]);
   ^

• Subtask 1: 29 / 29
• Subtask 2: 0 / 19
• Subtask 3: 0 / 20
• Subtask 4: 0 / 32