답안 #9689

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
9689 2014-09-28T08:07:03 Z shashack Uniting (kriii2_U) C++
4 / 4
28 ms 9364 KB
#include<iostream>
using namespace std;

int main(){
	int n; cin >> n;
	long long val[1000000+1];
	for (int i = 0; i < n; i++){
		cin >> val[i];
	}
	long long ret = 0;
	for (int i = 1; i < n; i++){
		ret += val[i] * val[i - 1];
		val[i] = val[i] + val[i - 1];
	}
	long long count = 1;
	for (int i = n; i >= 2; i--){
		count = (((count % 1000000007) * (i) % 1000000007) * (i - 1)) % 1000000007;
	}
	cout << ret << endl << count << endl;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 9360 KB Output is correct
2 Correct 0 ms 9360 KB Output is correct
3 Correct 0 ms 9356 KB Output is correct
4 Correct 0 ms 9360 KB Output is correct
5 Correct 0 ms 9360 KB Output is correct
6 Correct 0 ms 9356 KB Output is correct
7 Correct 0 ms 9356 KB Output is correct
8 Correct 0 ms 9360 KB Output is correct
9 Correct 0 ms 9360 KB Output is correct
10 Correct 0 ms 9364 KB Output is correct
11 Correct 0 ms 9364 KB Output is correct
12 Correct 0 ms 9364 KB Output is correct
13 Correct 0 ms 9360 KB Output is correct
14 Correct 0 ms 9360 KB Output is correct
15 Correct 0 ms 9364 KB Output is correct
16 Correct 0 ms 9360 KB Output is correct
17 Correct 4 ms 9364 KB Output is correct
18 Correct 4 ms 9360 KB Output is correct
19 Correct 4 ms 9356 KB Output is correct
20 Correct 4 ms 9356 KB Output is correct
21 Correct 4 ms 9360 KB Output is correct
22 Correct 0 ms 9360 KB Output is correct
23 Correct 4 ms 9364 KB Output is correct
24 Correct 0 ms 9360 KB Output is correct
25 Correct 8 ms 9360 KB Output is correct
26 Correct 8 ms 9360 KB Output is correct
27 Correct 8 ms 9364 KB Output is correct
28 Correct 8 ms 9360 KB Output is correct
29 Correct 8 ms 9360 KB Output is correct
30 Correct 12 ms 9360 KB Output is correct
31 Correct 12 ms 9360 KB Output is correct
32 Correct 12 ms 9360 KB Output is correct
33 Correct 12 ms 9364 KB Output is correct
34 Correct 8 ms 9360 KB Output is correct
35 Correct 16 ms 9364 KB Output is correct
36 Correct 16 ms 9356 KB Output is correct
37 Correct 16 ms 9364 KB Output is correct
38 Correct 16 ms 9360 KB Output is correct
39 Correct 16 ms 9360 KB Output is correct
40 Correct 20 ms 9360 KB Output is correct
41 Correct 20 ms 9356 KB Output is correct
42 Correct 20 ms 9356 KB Output is correct
43 Correct 12 ms 9364 KB Output is correct
44 Correct 24 ms 9356 KB Output is correct
45 Correct 24 ms 9360 KB Output is correct
46 Correct 20 ms 9360 KB Output is correct
47 Correct 28 ms 9360 KB Output is correct
48 Correct 28 ms 9360 KB Output is correct
49 Correct 28 ms 9360 KB Output is correct
50 Correct 24 ms 9364 KB Output is correct