답안 #9637

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
9637 2014-09-28T07:46:55 Z pichulia Uniting (kriii2_U) C++
4 / 4
12 ms 3432 KB
#include<stdio.h>
#define M 1000000007LL
int n;
long long int a[100009];
long long int f[100009];
long long int g[100009];
long long int s,t,u;
int main()
{
	scanf("%d",&n);
	long long int i,j, k;
	f[0] = 1;
	g[0] = 1;
	for(i=0;i<n;i++)
	{
		scanf("%lld",&a[i]);
		s = (s+a[i])%M;
		t = (t+a[i]*a[i])%M;
	}
	g[1] = 1;
	for(i=2;i<=n;i++)
	{
      j = (i*i-i)%M;
		g[i] = (g[i-1]*j)%M;
	}
	u = (s*s-t);
	u = u/2;
	printf("%lld\n%lld\n",u,g[n]);
}
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 3432 KB Output is correct
2 Correct 0 ms 3432 KB Output is correct
3 Correct 0 ms 3432 KB Output is correct
4 Correct 0 ms 3432 KB Output is correct
5 Correct 0 ms 3432 KB Output is correct
6 Correct 0 ms 3432 KB Output is correct
7 Correct 0 ms 3432 KB Output is correct
8 Correct 0 ms 3432 KB Output is correct
9 Correct 0 ms 3432 KB Output is correct
10 Correct 0 ms 3432 KB Output is correct
11 Correct 0 ms 3432 KB Output is correct
12 Correct 0 ms 3432 KB Output is correct
13 Correct 0 ms 3432 KB Output is correct
14 Correct 0 ms 3432 KB Output is correct
15 Correct 0 ms 3432 KB Output is correct
16 Correct 0 ms 3432 KB Output is correct
17 Correct 0 ms 3432 KB Output is correct
18 Correct 0 ms 3432 KB Output is correct
19 Correct 0 ms 3432 KB Output is correct
20 Correct 0 ms 3432 KB Output is correct
21 Correct 0 ms 3432 KB Output is correct
22 Correct 0 ms 3432 KB Output is correct
23 Correct 0 ms 3432 KB Output is correct
24 Correct 0 ms 3432 KB Output is correct
25 Correct 0 ms 3432 KB Output is correct
26 Correct 4 ms 3432 KB Output is correct
27 Correct 4 ms 3432 KB Output is correct
28 Correct 4 ms 3432 KB Output is correct
29 Correct 4 ms 3432 KB Output is correct
30 Correct 4 ms 3432 KB Output is correct
31 Correct 4 ms 3432 KB Output is correct
32 Correct 4 ms 3432 KB Output is correct
33 Correct 4 ms 3432 KB Output is correct
34 Correct 4 ms 3432 KB Output is correct
35 Correct 4 ms 3432 KB Output is correct
36 Correct 4 ms 3432 KB Output is correct
37 Correct 8 ms 3432 KB Output is correct
38 Correct 8 ms 3432 KB Output is correct
39 Correct 8 ms 3432 KB Output is correct
40 Correct 8 ms 3432 KB Output is correct
41 Correct 8 ms 3432 KB Output is correct
42 Correct 8 ms 3432 KB Output is correct
43 Correct 4 ms 3432 KB Output is correct
44 Correct 8 ms 3432 KB Output is correct
45 Correct 4 ms 3432 KB Output is correct
46 Correct 12 ms 3432 KB Output is correct
47 Correct 4 ms 3432 KB Output is correct
48 Correct 12 ms 3432 KB Output is correct
49 Correct 12 ms 3432 KB Output is correct
50 Correct 8 ms 3432 KB Output is correct