Submission #2898

#	Time	Username	Problem	Language	Result	Execution time	Memory
2898		zyslee	다각형 (GA5_polygon)	C++98	0 / 100	0 ms	1088 KiB

polygon

#include<stdio.h>
int main()
{
	long long int a, b, aa, bb, ans;
	scanf("%lld %lld", &a, &b);
	aa = (a-1)/2;
	bb = (b+1)/2;
	ans = ((bb*(bb+1)/2)-(aa*(aa+1)/2))*2;
	if(a==1 || a==2) ans-=2;
	if(b==1 || b==2) printf("0");
	else printf("%lld", ans);
	return 0;
}

• Subtask 1: 0 / 60
• Subtask 2: 0 / 10
• Subtask 3: 0 / 30