The Program in C++ that Alternates Case of each letter in a given string is given below:
#include <iostream>
#include <string>
#include <cctype>
using namespace std;
string alternate_case(string s) {
for (int i = 0; i < s.length(); i++) {
if (islower(s[i]))
s[i] = toupper(s[i]);
else if (isupper(s[i]))
s[i] = tolower(s[i]);
}
return s;
}
int main() {
string input;
cout << "Hello Codeauri Family,Enter a string here to convert as alternate string:\n ";
cin >> input;
cout << "Well, the Alternated case string is : " << alternate_case(input) << endl;
return 0;
}
Output:
Hello Codeauri Family,Enter a string here to convert as alternate string:
pOSitiVitY
Well, the Alternated case string is : PosITIvITy
Pro-Tips💡
It uses the standard input/output library iostream, the string library string, and the character type library cctype.
The main function uses the cin and cout statements to get the input from the user and print the output to the console.
The program uses a custom function alternate_case to alternate the case of the characters in the string.
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