Submission #3609417


Source Code Expand

#include <bits/stdc++.h>

using namespace std;

int main() {
  int n;
  cin >> n;

  vector<int> a(n);
  for (int i=0; i<n; i++) {
    cin >> a[i];
  }

  for (int i=0; i<n; i++) {
    a[i] -= i+1;
  }

  sort(a.begin(), a.end());

  int b_idx = a.size() / 2;
  int b = a[b_idx];

  int ans = 0;
  for (int i=0; i<n; i++) {
    ans += abs(a[i] - b);
  }

  if (a.size() % 2 == 0) {
    int sum = 0;
    b = a[b_idx-1];
    for (int i=0; i<n; i++) {
      sum += abs(a[i] - b);
    }
    if (ans > sum) {
      ans = sum;
    }
  }

  cout << ans << endl;

  return 0;
}

Submission Info

Submission Time
Task C - Linear Approximation
User ytoda129
Language C++14 (GCC 5.4.1)
Score 0
Code Size 612 Byte
Status WA
Exec Time 94 ms
Memory 1024 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 300
Status
AC × 4
AC × 11
WA × 8
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt AC 1 ms 256 KB
sample_04.txt AC 1 ms 256 KB
subtask_1_01.txt AC 1 ms 256 KB
subtask_1_02.txt WA 18 ms 384 KB
subtask_1_03.txt WA 15 ms 384 KB
subtask_1_04.txt WA 41 ms 640 KB
subtask_1_05.txt WA 72 ms 896 KB
subtask_1_06.txt AC 81 ms 1024 KB
subtask_1_07.txt WA 94 ms 1024 KB
subtask_1_08.txt WA 83 ms 1024 KB
subtask_1_09.txt WA 82 ms 1024 KB
subtask_1_10.txt WA 83 ms 1024 KB
subtask_1_11.txt AC 83 ms 1024 KB