답안 #9325

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
9325 2014-09-28T05:36:18 Z myungwoo Uniting (kriii2_U) C++14
4 / 4
12 ms 1088 KB
#include<stdio.h>
#define mod 1000000007

typedef long long lld;
lld n, s, sum, sqsum, fac=1;

int main(){
	lld i;
	scanf("%lld", &n);
	for(i=0; i<n; i++){
		scanf("%lld", &s);
		sum+=s, sqsum+=s*s;
	}
	for(i=n; i>=2; i--){
		fac=(fac*i)%mod;
		fac=(fac*(i-1))%mod;
	}
	printf("%lld\n%lld", (sum*sum-sqsum)/2, fac);
	return 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
6 Correct 0 ms 1088 KB Output is correct
7 Correct 0 ms 1088 KB Output is correct
8 Correct 0 ms 1088 KB Output is correct
9 Correct 0 ms 1088 KB Output is correct
10 Correct 0 ms 1088 KB Output is correct
11 Correct 0 ms 1088 KB Output is correct
12 Correct 0 ms 1088 KB Output is correct
13 Correct 0 ms 1088 KB Output is correct
14 Correct 0 ms 1088 KB Output is correct
15 Correct 0 ms 1088 KB Output is correct
16 Correct 0 ms 1088 KB Output is correct
17 Correct 0 ms 1088 KB Output is correct
18 Correct 0 ms 1088 KB Output is correct
19 Correct 0 ms 1088 KB Output is correct
20 Correct 0 ms 1088 KB Output is correct
21 Correct 0 ms 1088 KB Output is correct
22 Correct 0 ms 1088 KB Output is correct
23 Correct 0 ms 1088 KB Output is correct
24 Correct 0 ms 1088 KB Output is correct
25 Correct 0 ms 1088 KB Output is correct
26 Correct 4 ms 1088 KB Output is correct
27 Correct 4 ms 1088 KB Output is correct
28 Correct 4 ms 1088 KB Output is correct
29 Correct 4 ms 1088 KB Output is correct
30 Correct 4 ms 1088 KB Output is correct
31 Correct 4 ms 1088 KB Output is correct
32 Correct 4 ms 1088 KB Output is correct
33 Correct 4 ms 1088 KB Output is correct
34 Correct 4 ms 1088 KB Output is correct
35 Correct 4 ms 1088 KB Output is correct
36 Correct 4 ms 1088 KB Output is correct
37 Correct 4 ms 1088 KB Output is correct
38 Correct 8 ms 1088 KB Output is correct
39 Correct 8 ms 1088 KB Output is correct
40 Correct 8 ms 1088 KB Output is correct
41 Correct 8 ms 1088 KB Output is correct
42 Correct 8 ms 1088 KB Output is correct
43 Correct 8 ms 1088 KB Output is correct
44 Correct 8 ms 1088 KB Output is correct
45 Correct 8 ms 1088 KB Output is correct
46 Correct 8 ms 1088 KB Output is correct
47 Correct 12 ms 1088 KB Output is correct
48 Correct 12 ms 1088 KB Output is correct
49 Correct 8 ms 1088 KB Output is correct
50 Correct 4 ms 1088 KB Output is correct