The following code does not work as intended. Chapter 8-Practice Set Question Number 4

[srivastavHimanshu4503]

#include <stdio.h>

char* slice(char str[], int m, int n){
int i=0, count;
char *ptr1 = &str[m];
char *ptr2 = &str[n];

str = ptr1;
str[n] = '\0';
return str;

}
int main(){
char str[] = "Himanshu Srivastav";

printf("%s", slice(str, 6, 11));
// Desired Output : hu Sri
// Actual output: hu Srivasta (Wrong)
return 0;

}

[srivastavHimanshu4503]

The following code is working completely right.
#include <stdio.h>

char* slice(char str[], int m, int n){
str = &str[m];
str[n-m+1] = '\0';

return str;

}
int main(){
char str[] = "Himanshu Srivastav";
int m = 6;
int n = 11;

printf("%s\n", slice(str, 6, 11));
return 0;

}
Hope this will implemented soon.