String Reverse

char *strrev(char *string);

#include<stdio.h>
#include<string.h>
int main()
{
	char s[100];
	puts("Enter string 1");
	gets(s);
	strrev(s);
	puts("Reversed string is");
	puts(s);
	return 0;
}

Enter string 1
bag
Reversed string is
Gab

#include<stdio.h>
int main()
{
	char s[100],r[100];
	int i=0,j=0;
	puts("Enter string");
	gets(s);
	while(s[i] != '\0')
	{
		i++;
	}
	while(i>0)
	{
		i--;
		r[j] = s[i];
		j++;
	}
	r[j] = '\0';
	puts("Reversed string is ");
	puts(r);
	return 0;
}

Enter string
bag
Reversed string is
Gab

#include<stdio.h>
int main()
{
	char s[100],r[100];
	int i=0,j=0;
	puts("Enter string");
	gets(s);
	while(s[i] != '\0')
	{
		i++;
	}
	while(i>0)
	{
		i--;
		r[j] = s[i];
		j++;
	}
	r[j] = '\0';
	puts("Reversed string is ");
	puts(r);
	return 0;
}

Enter string
bag
Reversed string is
Gab