Question

Write a progrm that accepts two strings as input, then indicates if the two strings are equal when the case of individual letters is ignored.

Sample runs are shown below. Use C++

Enter two strings.
String 1: PROgraM
String 2: proGram

PROgraM and proGram are equal.

Enter two strings.
String 1: litter
String 2: LittLe

litter and LittLe are not equal.

Answer 1

C++ code:

#include <iostream>
using namespace std;
int main(){
//initializing 2 strings
string string1,string2;
//asking for them
cout<<"Enter two strings."<<endl;
//asking for String 1
cout<<"String 1: ";
//accepting it
cin>>string1;
//asking for String 2
cout<<"String 2: ";
//accepting it
cin>>string2;
//checking if their lengths are not equal
if(string1.length()!=string2.length())
//printing they are not equal
cout<<"\n"<<string1<<" and "<<string2<<" are not equal."<<endl;
else{
//initializing flag as 0
int flag=0;
//looping till the end of the string
for(int i=0;i<string1.length();i++){
//converting current character of both strings to lower case and checking if they are equal
if(tolower(string1[i])!=tolower(string2[i]))
//setting flag as 1
flag=1;
}
//checking if flag is 0
if(flag==0)
//printing they are equal
cout<<"\n"<<string1<<" and "<<string2<<" are equal."<<endl;
else
//printing they are not equal
cout<<"\n"<<string1<<" and "<<string2<<" are not equal."<<endl;
}
return 0;
}

Screenshot:

Input and Output: