#include<stdio.h>
#define ll long long
const int MOD = 1e9 + 7;
int main()
{
int n;
ll a = 0, b = 1, c = 1;
scanf("%d%lld",&n,&b);--n;
while(n--){
int x;
scanf("%d",&x);
a += b*x;
b += x;
c *= (n+2);
c %= MOD;
c *= (n+1);
c %= MOD;
}
printf("%lld\n%lld",a,c);
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 |
0 ms |
1088 KB |
Output is correct |
27 |
Correct |
0 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 |
0 ms |
1088 KB |
Output is correct |
38 |
Correct |
4 ms |
1088 KB |
Output is correct |
39 |
Correct |
4 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 |
4 ms |
1088 KB |
Output is correct |
48 |
Correct |
4 ms |
1088 KB |
Output is correct |
49 |
Correct |
4 ms |
1088 KB |
Output is correct |
50 |
Correct |
12 ms |
1088 KB |
Output is correct |