Submission #2888

#	Time	Username	Problem	Language	Result	Execution time	Memory
2888		zyslee	다각형 (GA5_polygon)	C++98	0 / 100	0 ms	1080 KiB

polygon

#include<stdio.h>
int main()
{
	int a, b, aa, bb;
	freopen("input.txt","r",stdin);
	freopen("outputt.txt","w",stdout);
	scanf("%d %d", &a, &b);
	aa = (a-1)/2;
	bb = (b+1)/2;
	printf("%d", ((bb*(bb+1)/2)-(aa*(aa+1)/2))*2);
	return 0;
}

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