Stuff

#include <stdio.h>
#include <stdlib.h>
 
int main(void)
{
        int n,r,i,j,a[100],bandera;
        i=0;
        printf("Ingresa el numero: ");
        scanf("%d", &n);
                    
        while(n != 0) {
                a[i] = n%2;
                n=n/2;
                i++;
                }
                for(j = i-1; j>=0; j--){
                      printf("%d",a[j]);
}
i = 0;
bandera = 0;
do{

if(a[i] == 1){
        bandera=i;
}
else {
i++
}
 
} while(bandera == 0)
 
for(h=i+1;h<=j;h++){
        if(a[h] == 1){
        a[h]= 0;
        }
        else {
        a[h]=1;
        }
 
}