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Submission #2728

# Submission time Handle Problem Language Result Execution time Memory
2728 2013-07-31T03:53:51 Z gs13068 다각형 (GA5_polygon) C++
100 / 100
 0 ms 1088 KB 
#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)-get(a-1));
}

Subtask #1
60.0 / 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 Correct 0 ms 1088 KB Output is correct
4 Correct 0 ms 1088 KB Output is correct
5 Correct 0 ms 1088 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 Correct 0 ms 1088 KB Output is correct
4 Correct 0 ms 1088 KB Output is correct
5 Correct 0 ms 1088 KB Output is correct

Subtask #3
30.0 / 30.0

# 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 Correct 0 ms 1088 KB Output is correct
4 Correct 0 ms 1088 KB Output is correct
5 Correct 0 ms 1088 KB Output is correct