Constant References

Easy References

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Problem Statement

Write a C++ program defining a function taking a `const std::string&` to read and print a string without copying overhead or modification risk.

Input Format

A single word string S.

Output Format

Print the string prefixed with 'ConstRef: '.

Constraints

1 <= Length <= 50

Sample Input

Constant

Sample Output

ConstRef: Constant

Explanation

Constant references (`const T&`) prevent copying large objects while guaranteeing immutability.

Starter Code

#include <iostream>
#include <string>

void printString(const std::string &s) {
    // Write your code here
}

int main() {
    std::string s;
    if (std::cin >> s) {
        printString(s);
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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