Submission #5909318


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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  int N;
  cin >> N;
  vector<ll> x(N);
  for (int i = 0; i < N; i++) {
    cin >> x[i];
  }
  sort(x.begin(), x.end());;
  ll y[N + 1]{};
  for (int i = 0; i < N; i++) {
    y[i + 1] += y[i] + x[i];
  }
  ll cost = 0;
  for (int i = 0; i < N - 1; i++) {
    cost += y[N] - y[i + 1] - (N - i - 1) * x[i];
  }
  cout << cost << "\n";
  return 0;
}

Submission Info

Submission Time
Task C - Pair Distance
User yamakasa
Language C++14 (GCC 5.4.1)
Score 300
Code Size 495 Byte
Status AC
Exec Time 18 ms
Memory 1792 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 2
AC × 27
Set Name Test Cases
Sample s1.txt, s2.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, s1.txt, s2.txt
Case Name Status Exec Time Memory
01.txt AC 1 ms 256 KB
02.txt AC 1 ms 256 KB
03.txt AC 2 ms 384 KB
04.txt AC 1 ms 256 KB
05.txt AC 1 ms 256 KB
06.txt AC 2 ms 384 KB
07.txt AC 2 ms 384 KB
08.txt AC 2 ms 384 KB
09.txt AC 2 ms 384 KB
10.txt AC 2 ms 384 KB
11.txt AC 17 ms 1664 KB
12.txt AC 18 ms 1792 KB
13.txt AC 18 ms 1792 KB
14.txt AC 17 ms 1664 KB
15.txt AC 17 ms 1664 KB
16.txt AC 17 ms 1664 KB
17.txt AC 18 ms 1792 KB
18.txt AC 17 ms 1664 KB
19.txt AC 18 ms 1792 KB
20.txt AC 17 ms 1792 KB
21.txt AC 17 ms 1792 KB
22.txt AC 18 ms 1792 KB
23.txt AC 18 ms 1792 KB
24.txt AC 17 ms 1792 KB
25.txt AC 17 ms 1792 KB
s1.txt AC 1 ms 256 KB
s2.txt AC 1 ms 256 KB