Question

Need help about C programming!

Inverting binary!

Write a function, invert(x, p, n) that returns x with the n bits that begin at position p inverted, leaving the others unchanged. For example, if x is 0b1001, n=1 and p=1, invert(x, p, n) would return "0b1011". We can see that 1 bit at position 1 was inverted. Another example, if x is 0b11001011, n=3 and p=2, invert(x, p, n) would return "0b11010111".

Thanks!

Answer 1

#include "stdio.h"

int main(void) {
  
char bin[10];
int p, n, length,index, i;
printf("Enter your binary number:");
scanf("%s",bin);
p=2;
n=3;
  
printf("%s\n",bin);
length = strlen(bin);
printf("%d\n",length);
  
for (i=0;i<p;i++){
   index = length-n-1;
   if (bin[index]=="1"){
       bin[index]=="0";
   }else{
       if(bin[index]=="0"){
           bin[index]=="1";
       }
   }
}
  
   printf("%s\n",bin);
}