C++ - Convert to lowercase and uppercase

C++ - Convert to lowercase and uppercase

CODE

#include <iostream> #include <algorithm> using namespace std; int main() { string input = "Hello World"; transform(input.begin(), input.end(), input.begin(), ::tolower); cout << "Converted to lowercase: " << input << endl; transform(input.begin(), input.end(), input.begin(), ::toupper); cout << "Converted to uppercase: " << input << endl; //OUTPUT //Converted to lowercase: hello world //Converted to uppercase: HELLO WORLD return 0; }