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  1. #include <iostream>
  2.  
  3. int main()
  4. {
  5.     std::cout << "Enter the natural number ";
  6.     int m;
  7.  
  8.     if (!(std::cin >> m)) {
  9.         std::cout << "Invalid entry\n";
  10.     } else {
  11.         for (int i = 1; i < m; i++) {
  12.             for (int j = 4; j < i; j++) {
  13.                 int rem = i + j;
  14.                 std::cout << rem << '\n';
  15.             }
  16.         }
  17.     }
  18. }
  19.  
Success #stdin #stdout 0s 3100KB
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Enter the natural number
https://ideone.com/Rsoff9
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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