What should be the best way to reverse a string in C without the use of strrev?

Question

I am looking to reverse a string using binary search algorithm but no clue. Can someone share the algo and may be C/C++ code?

Answer 1

Take two pointers one at the start and one at the end, replace swap start and end character.
Move start pointer forward and end backward till start is less hen end.

void rverese_array(char arr[])
{
    int start = 0, end = strlen(arr) - 1;
    while (start < end)
    {
        char temp = arr[start];
        arr[start] = arr[end];
        arr[end] = temp;
        start++;
        end--;
    }
}

Answer 2

#include<stdio.h>
#include<string.h>
main()
{
char a[]="Some String",b[length_a];
int i,j;
j=strlen(a)-1;
for(i=0;i<j;i++,j--)
    b[i]=a[j];
b[i]='\0';
printf("Reverse string = %s \n",b);
}

Answer 3

Try this method:

#include< stdio.h>

    int main()
    {
    char str[10] ;
    int i=0,j;
    printf("Enter a String:\n");
    scanf("%s",&str);
    while (str[i]!='\0')
    {
    i++;    
    }
  str[i++]='\0';
    printf("Reversed String is:\n");    
    for(j=i-1; j>=0;j--)
    {
    printf("%c",str[j]);
    }