Compare Two Strings in C++

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Length of String in C++ Reverse String in C++

C++ Program to Compare Two Strings

To compare any two string first we need to find length of each string and then compare both strings. If both string have same length then compare character by character of each string.

To understand below example, you have must knowledge of following C++ programming topics; For Loop in C++, While Loop in C++, String in C++ and Array in C++

Compare two strings in C++

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

void main()
 {
 char str1[20],str2[20],i,j,flag=0;
 clrscr();
 cout<<"Enter first string: ";
 gets(str1);
 cout<<"Enter Second string: ";
 gets(str2);
 i=0;
 j=0;
  while(str1[i]!='\0')
  {
   i++;
  }
  while(str2[j]!='\0')
  {
   j++;
  }
 if(i!=j)
 {
 flag=0;
 }
 else
 {
 for(i=0,j=0;str1[i]!='\0',str2[j]!='\0';i++,j++)
 {
 if(str1[i]==str2[j])
 {
 flag=1;
 }
 }
 }
 if(flag==0)
 {
 cout<<"Strings are not equal";
 }
 else
 {
 cout<<"Strings are equal";
 }
 getch();
}

Output

Enter First String : rajess
Enter Second String : rajesh
Strings are not equal

Length of String in C++ Reverse String in C++

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