#include<bits/stdc++.h>
using namespace std;
long long n, m, x, s = 1;
int main()
{
cin >> n >> m;
for(int i = 1; i <= n; ++i) cin >> x;
m -= 1;
for(int i = 2; i <= n; ++i)
{
s *= i;
m -= x;
s %= 1000000007;
}
int t = n + 1;
for(int i = 1; i <= m; ++i, ++t)
{
s = (s * t / i) % 1000000007;
}
cout << s;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
304 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
300 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
304 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |