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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int N, digit;
  5.  
  6.     // Input the number
  7.     printf("Enter a natural number: ");
  8.     scanf("%d", &N);
  9.  
  10.     // Process each digit
  11.     while (N > 0) {
  12.         digit = N % 10; // Extract the last digit
  13.  
  14.         // Check if the digit is not a square of 2 (1 or 4)
  15.         if (digit != 1 && digit != 4) {
  16.             printf("%d ", digit); // Print the digit
  17.         }
  18.  
  19.         N = N / 10; // Remove the last digit
  20.     }
  21.  
  22.     return 0;
  23. }
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin 
132421565134
stdout 
Enter a natural number:
https://ideone.com/uu2iWK
language:
C++14 (gcc 8.3)
created:
12 hours ago
visibility:
public

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