Submission #2817

#	Time	Username	Problem	Language	Result	Execution time	Memory
2817		gs13105	다각형 (GA5_polygon)	C++98	100 / 100	0 ms	1088 KiB

polygon

#include <stdio.h>

int main()
{
	long long a,b,n,s;
	scanf("%lld%lld",&a,&b);
	if(a%2==1)
		a++;
	n=(b-a)/2+1;
	s=n*(a+n-1);
	if(a==2)
		s-=2;
	printf("%lld",s);
	return 0;
}

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