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  1. #include <stdio.h>
  2.  
  3. void decimalToBinaryWhile(int n) {
  4.     if (n == 0) {
  5.         printf("0");
  6.         return;
  7.     }
  8.     int binaryNum[32]; // Array to store binary digits (32 bits is usually sufficient for an int)
  9.     int i = 0;
  10.  
  11.     // Use a while loop to get the remainders
  12.     while (n > 0) {
  13.         binaryNum[i] = n % 2; // Store the remainder
  14.         n = n / 2;         // Update the number by dividing by 2
  15.         i++;               // Increment index
  16.     }
  17.  
  18.     // Use a for loop to print the array in reverse order
  19.     for (int j = i - 1; j >= 0; j--) {
  20.         printf("%d", binaryNum[j]);
  21.     }
  22. }
  23.  
  24. int main() {
  25.     int number;
  26.     printf("Enter a decimal number: ");
  27.     scanf("%d", &number);
  28.     printf("Binary equivalent: ");
  29.     decimalToBinaryWhile(number);
  30.     printf("\n");
  31.     return 0;
  32. }
  33.  
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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Enter a decimal number: Binary equivalent: 111111111111100
https://ideone.com/3vgQc6
language:
C++ 4.3.2 (gcc-4.3.2)
created:
1 day ago
visibility:
public

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