try yourself |run program

#include <stdio.h>
#include <string.h>
#include <conio.h>

void main(){
 char str1[50];
 char str2[50];
 int con;
 clrscr();
  printf("Eenter first string:-");
  gets(str1);
  printf("\nEenter second string:-");
  gets(str2);
  con = strcmp(str1,str2);
  if(con==0){
  printf("\n both are equal.");
  }
  else{
  printf("\n both are equal.");
  }
 getch();
}

Program Output

Eenter first string:-w3google 
Eenter second string:-w3google 
both are equal.