oj.uz

Submission #9604

# Submission time Handle Problem Language Result Execution time Memory
9604 2014-09-28T07:35:07 Z jaehadad Uniting (kriii2_U) C++14
0 / 4
 0 ms 1672 KB 
#include<cstdio>
#include<cassert>
#include<cstring>
#include<map>
#include<set>
#include<time.h>
#include<algorithm>
#include<stack>
#include<queue>
#include<utility>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
using namespace std;
const long long MOD = 1000000007;

long long go(long long n) {
  long long ret = 1;
  for(long long i = 2; i <= n; ++i) { ret = (ret * i) % MOD; }
  for(long long i = 2; i <= n-1; ++i) { ret = (ret * i) % MOD; }
  return ret;
}

int main() {
  long long n;
  cin >> n;
  long long ret = 0;
  long long cursize = 0;
  for(int i = 0; i < n; ++i) {
    long long s;
    cin >> s;
    ret += cursize * s;
    cursize += n;
  }
  cout << ret << endl;
  cout << go(n) << endl;
}

Subtask #1
0.0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 1672 KB Output isn't correct
2 Halted 0 ms 0 KB -