Submission #18996

#	Time	Username	Problem	Language	Result	Execution time	Memory
18996		kriii	창문 (kriii4_C)	C++14	3 / 100	0 ms	1084 KiB

C

#include <stdio.h>

int main()
{
	int H,W;
	scanf ("%d %d",&H,&W);

	long long ans = 0;
	for (int i=1;i<=H;i++) for (int j=1;j<=W;j++){
		ans += 9 * i * j * (H - i + 1) * (W - j + 1);
	}
	ans /= H * (H + 1) / 2;
	ans /= W * (W + 1) / 2;
	printf ("%lld\n",ans%1000000007);

	return 0;
}

• Subtask 1: 3 / 3
• Subtask 2: 0 / 97