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  1. #include <iostream>
  2. using namespace std;
  3. void fillArray(int arr[], int N) 
  4. {
  5.     for(int i=0; i<N; i++) {
  6.         cin >> arr[i];
  7.     }
  8. }
  9. void swap(int &a, int &b) {
  10.     int temp = a;
  11.     a = b;
  12.     b = temp;
  13. }
  14.  
  15. void swapPlaces(int arr[], int N, int i1, int i2) {
  16.     if(i1 > N) {
  17.         return;
  18.     }
  19.     if(i2 > N) {
  20.         return ;
  21.     }
  22.     swap(arr[i1-1], arr[N-i1]);
  23.  
  24.     swap(arr[i2-1], arr[N-i2]);
  25. }
  26.  
  27. void printArray(int arr[], int N) 
  28. {
  29.     for(int i=0; i<N; i++) {
  30.         cout << arr[i] << ' ';
  31.     }
  32. }
  33. int main()
  34. {
  35.     int N, q, i1, i2;
  36.     int arr[N];
  37.     cin >> N;
  38.     fillArray(arr, N);
  39.     cin >> q;
  40.     while(q--) {
  41.         cin >> i1 >> i2;
  42.         swapPlaces(arr, N, i1, i2);
  43.     }
  44.     printArray(arr, N);
  45.  
  46.     return 0;
  47. }
  48.  
Success #stdin #stdout 0s 15224KB
comments (?)
stdin
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5
1 2 3 4 5
2
1 2
2 3
stdout
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5 2 3 4 1
https://ideone.com/ugHEps
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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