Mutable Lambdas

Medium Lambda Expressions
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Problem Statement

Write a C++ program defining a mutable lambda (`mutable`) that modifies its captured-by-value variables internally.

Input Format

A single integer initial counter value C.

Output Format

Print counter value inside lambda after invocation.

Constraints

-1000 <= C <= 1000

Sample Input

10

Sample Output

15

Explanation

The `mutable` keyword permits modifying copies of variables captured by value inside the lambda body.

Starter Code

#include <iostream>

int main() {
    int count;
    if (std::cin >> count) {
        // Write your mutable lambda logic here
    }
    return 0;
}

Limits

  • Time Limit: 1s
  • Memory Limit: 256MB

Embedded C Programming

Updated: March 15, 2026
Intermediate

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