제출 #19790

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
19790	2016-02-25 05:40:46	str	창문 (kriii4_C)	C++14	3 / 100	1000 ms	1084 KiB

C

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#include<stdio.h>
int main()
{
  unsigned long long h = 0, w = 0;
  unsigned long long i = 0, j = 0;
  unsigned long long sum = 0;
  unsigned long long result = 0;
  scanf("%llu %llu", &h, &w);
  for (i = 1; i <= h; i++)
  {
    for (j = 1; j <= w; j++)
    {
      sum = sum + ((h - (i - 1))*(w - (j - 1)) * 9 * i*j);
    }
  }
  result = sum / (((i*(i - 1)) / 2)*((j*(j - 1)) / 2));
  printf("%llu", result % 1000000007);
  return 0;
}
 
 
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• Subtask 1: 3 / 3
• Subtask 2: 0 / 97