Submission #7814

#	Time	Username	Problem	Language	Result	Execution time	Memory
7814		gs13073	다각형 (GA5_polygon)	C++98	0 / 100	0 ms	1088 KiB

polygon

#include<stdio.h>

int main()
{
  long long t,a,b;
  scanf("%lld %lld",&a,&b);
  if(a<4)a=4;
  if(a%2)a++;
  if(b%2)b--;
  a/=2;b/=2;
  t=b*(b+1)/2-a*(a-1)/2;
  printf("%lld",t*2);
  return 0;
}

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