Submission #2725

#	Time	Username	Problem	Language	Result	Execution time	Memory
2725		gs13068	다각형 (GA5_polygon)	C++98	0 / 100	0 ms	1088 KiB

polygon

#include<cstdio>

long long get(long long x)
{
  if(x<2)return 0;
  return (x/2)*(x/2+1)-2;
}

int main()
{
  long long a,b;
  scanf("%lld%lld",&a,&b);
  printf("%lld",get(b+1)-get(a));
}

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