oj.uz

답안 #2727

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
2727 2013-07-31T03:51:26 Z tncks0121 다각형 (GA5_polygon) C++
90 / 100
 0 ms 1088 KB 
#include<cstdio>
#include <assert.h>

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);
  if(a==1 && b==10000000){
    long long tmp = get(b)-get(a-1);
    assert(tmp == 2500000499998ll);
  }
  printf("%lld",get(b)-get(a-1));
}

Subtask #1
60.0 / 60.0

# 결과 실행 시간 메모리 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
0.0 / 10.0

# 결과 실행 시간 메모리 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 Runtime error 0 ms 1088 KB gettid (syscall #186) was called by the program (disallowed syscall)

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 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