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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int num;
  5.     int binary[32];
  6.     int i = 0;
  7.  
  8.     scanf("%d", &num);
  9.  
  10.     if (num == 0) {
  11.         printf("0\n");
  12.         return 0;
  13.     }
  14.  
  15.     while (num > 0) {
  16.         binary[i++] = num % 2;
  17.         num /= 2;
  18.     }
  19.  
  20.     for (int j = i - 1; j >= 0; j--) {
  21.         putchar('0' + binary[j]);
  22.     }
  23.     putchar('\n');
  24.  
  25.     return 0;
  26. }
  27.  
  28.  
Success #stdin #stdout 0s 5316KB
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stdin
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Standard input is empty
stdout
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1010001110101
https://ideone.com/bpEb5F
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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