oj.uz

Submission #2709

# Submission time Handle Problem Language Result Execution time Memory
2709 2013-07-31T03:36:32 Z gs13068 다각형 (GA5_polygon) C++
0 / 100
 0 ms 1088 KB 
#include<cstdio>

long long get(long long x)
{
  if(x==1)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-1));
}

Subtask #1
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1088 KB Output is correct
2 Correct 0 ms 1088 KB Output is correct
3 Incorrect 0 ms 1088 KB Output isn't correct
4 Halted 0 ms 0 KB -