dupa

    #include<stdio.h>
    #include<stdlib.h>
int find(int decimal_number)
{
    if (decimal_number == 0)
        return 0;
    else
        return (decimal_number % 2 + 10 *
                find(decimal_number / 2));
}
int main()
{
    int decimal_number = 34;
    printf("%d", find(decimal_number));
    return 0;
}

/*
    34/2=2*17=34+0
    17/2=2*8 =16+1
     8/2=2*4 =8 +0
     4/2=2*2 =8 +0
     2/2=2*1 =2 +0
     1/2=2*0 =0 +1
  */