Submission #9808

# Submission time Handle Problem Language Result Execution time Memory
9808 2014-09-28T09:40:21 Z kkjjkk Uniting (kriii2_U) C++
4 / 4
16 ms 2456 KB
#include <algorithm>
#include <iostream>
#include <cstdio>
using namespace std;
long long h[100005], m = 1000000007;

int main()
{
    int n;
    scanf("%d", &n);
    for(int i = 0; i < n; i++) scanf("%lld", &h[i]);
    if(n == 1) { printf("0\n"); printf("1"); }
    else if(n == 2) { printf("%lld\n", h[0] * h[1]); printf("2"); }
    else {
         long long a = h[0] + h[1];
         long long b = h[0] * h[1];
         long long c, s = 1;
         for(int i = 2; i < n; i++) {
              c = a * h[i];
              a += h[i]; b += c;
         }
         printf("%lld\n", b);
         
         for(int i = 2; i <= n; i++) { s *= ( (i % m) * ((i - 1) % m) ) % m; s %= m; }
         printf("%lld", s);
    }
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2456 KB Output is correct
2 Correct 0 ms 2456 KB Output is correct
3 Correct 0 ms 2456 KB Output is correct
4 Correct 0 ms 2456 KB Output is correct
5 Correct 0 ms 2456 KB Output is correct
6 Correct 0 ms 2456 KB Output is correct
7 Correct 0 ms 2456 KB Output is correct
8 Correct 0 ms 2456 KB Output is correct
9 Correct 0 ms 2456 KB Output is correct
10 Correct 0 ms 2456 KB Output is correct
11 Correct 0 ms 2456 KB Output is correct
12 Correct 0 ms 2456 KB Output is correct
13 Correct 0 ms 2456 KB Output is correct
14 Correct 0 ms 2456 KB Output is correct
15 Correct 0 ms 2456 KB Output is correct
16 Correct 0 ms 2456 KB Output is correct
17 Correct 0 ms 2456 KB Output is correct
18 Correct 0 ms 2456 KB Output is correct
19 Correct 0 ms 2456 KB Output is correct
20 Correct 0 ms 2456 KB Output is correct
21 Correct 4 ms 2456 KB Output is correct
22 Correct 4 ms 2456 KB Output is correct
23 Correct 4 ms 2456 KB Output is correct
24 Correct 4 ms 2456 KB Output is correct
25 Correct 4 ms 2456 KB Output is correct
26 Correct 4 ms 2456 KB Output is correct
27 Correct 4 ms 2456 KB Output is correct
28 Correct 4 ms 2456 KB Output is correct
29 Correct 4 ms 2456 KB Output is correct
30 Correct 4 ms 2456 KB Output is correct
31 Correct 4 ms 2456 KB Output is correct
32 Correct 8 ms 2456 KB Output is correct
33 Correct 8 ms 2456 KB Output is correct
34 Correct 8 ms 2456 KB Output is correct
35 Correct 8 ms 2456 KB Output is correct
36 Correct 8 ms 2456 KB Output is correct
37 Correct 8 ms 2456 KB Output is correct
38 Correct 4 ms 2456 KB Output is correct
39 Correct 12 ms 2456 KB Output is correct
40 Correct 8 ms 2456 KB Output is correct
41 Correct 4 ms 2456 KB Output is correct
42 Correct 12 ms 2456 KB Output is correct
43 Correct 12 ms 2456 KB Output is correct
44 Correct 12 ms 2456 KB Output is correct
45 Correct 8 ms 2456 KB Output is correct
46 Correct 12 ms 2456 KB Output is correct
47 Correct 12 ms 2456 KB Output is correct
48 Correct 16 ms 2456 KB Output is correct
49 Correct 12 ms 2456 KB Output is correct
50 Correct 16 ms 2456 KB Output is correct