//C program to Concatenate two string without using
//concat()
#include <stdio.h>

//Function to concatenate two strings
void concatenateStrings(char* str1,const char*str2)
{
    //Navigate to the end of the first string
    while(*str1){
        ++str1;
    }

    //Copy characters of the second string to the end of
    //the first string
    while(*str2){
        *str1++=*str2++;
    }

    //Add the null-terminating character
    *str1='\0';
}

int main() 
{
    char string1[50]="Hello, ";
    char string2[]="Geek!";
    
    //Calling Function to concatenate strings
    concatenateStrings(string1,string2);
    
    //Output the concatenate string
    printf("Concatenate the String:%s\n",string1);

    return 0;
}