Submission #2925

#	Time	Username	Problem	Language	Result	Execution time	Memory
2925		ansol4328	다각형 (GA5_polygon)	C++98	0 / 100	0 ms	1088 KiB

polygon

#include<stdio.h>

int main()
{
    unsigned long long a, b, sum;

    scanf("%llu %llu",&a,&b);
  	a-=1;
  	if(a<2) a=2;
 	a/=2;
    b/=2;
    sum=b*(b+1);
    sum-=a*(a+1);
    printf("%llu",sum);
    return 0;
}

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