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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. void print_matrix(vector<vector <int>>& matrix){
  5.     cout << "[\n";
  6.     int row = matrix.size();
  7.  
  8.     for(int i = 0 ; i < row; i++){
  9.         cout << "[";
  10.         int cur_row_size = matrix[i].size();
  11.         for(int j = 0; j < cur_row_size; j++){
  12.             cout << matrix[i][j] ;
  13.  
  14.             if(j != cur_row_size-1){
  15.                 cout << ",";
  16.             }
  17.         }
  18.         cout << "]";
  19.         if(i != row-1){
  20.             cout << ",";
  21.         }
  22.  
  23.         cout << "\n";
  24.     }
  25.  
  26.     cout << "]";
  27. }
  28.  
  29. vector<vector<int>> zoom(const vector<vector<int>>& matrix, int zoom_factor) {
  30.     int n = matrix.size();
  31.     int m = matrix[0].size();
  32.  
  33.     vector<vector<int>> result(n * zoom_factor, vector<int>(m * zoom_factor));
  34.  
  35.     for(int i = 0; i < n; i++){
  36.         for(int j = 0; j < m; j++){
  37.             for(int di = 0; di < zoom_factor; di++){
  38.                 for(int dj = 0; dj < zoom_factor; dj++){
  39.                     result[i*zoom_factor + di][j*zoom_factor + dj] = matrix[i][j];
  40.                 }
  41.             }
  42.         }
  43.     }
  44.  
  45.     return result;
  46. }
  47.  
  48. int main(){
  49.     vector<vector<int>> numbers;
  50.     vector<vector<int>> result;
  51.     int zoom_factor;
  52.     string input_str;
  53.  
  54.     cout << "Input array of int that you want to zoom with no spacing. Format Example: [[1,2],[3,4]]\n> ";
  55.     cin >> input_str;
  56.  
  57.     if(!(input_str.empty())){
  58.         input_str.erase(0,1);
  59.     }
  60.  
  61.     if(!(input_str.empty())){
  62.         input_str.pop_back();
  63.     }
  64.  
  65.  
  66.     int cur_num = 0;
  67.     bool is_neg = false;
  68.     vector<int> cur_row;
  69.     bool in_num = false;
  70.  
  71.     for(char c: input_str){
  72.  
  73.         if(c =='-'){
  74.             is_neg = true;
  75.         }
  76.  
  77.         if(isdigit(c)){
  78.             cur_num = cur_num*10 + (c - '0');
  79.             in_num = true;
  80.         }
  81.  
  82.         else{
  83.             if(in_num){
  84.                 if(is_neg) cur_num *= -1;
  85.                 cur_row.push_back(cur_num);
  86.  
  87.                 cur_num = 0;
  88.                 is_neg =false;
  89.                 in_num = false;
  90.             }
  91.  
  92.             if(c ==']'){
  93.                 numbers.push_back(cur_row);
  94.                 cur_row.clear();
  95.             }
  96.         }
  97.  
  98.     }
  99.  
  100.     cout << "\nInput the zoom amount (zoom factor). Example: 3\n> ";
  101.     cin >> zoom_factor;
  102.  
  103.     result = zoom(numbers, zoom_factor);    
  104.     cout << "\nResult:\n";
  105.     print_matrix(result);
  106.  
  107.     return 0;
  108. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
copy 
[[1,2],[3,4]]
3
stdout
copy 
Input array of int that you want to zoom with no spacing. Format Example: [[1,2],[3,4]]
> 
Input the zoom amount (zoom factor). Example: 3
> 
Result:
[
[1,1,1,2,2,2],
[1,1,1,2,2,2],
[1,1,1,2,2,2],
[3,3,3,4,4,4],
[3,3,3,4,4,4],
[3,3,3,4,4,4]
]
https://ideone.com/hXeYr0
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
secret

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