Resolve UART Namespaces

#include <iostream>
using namespace std;

// Create namespace Boot with nested namespace UART
namespace Boot {
    namespace UART {
        void send() {
            cout << "BOOT UART" << endl;
        }
    }
}
// Create namespace App  with nested namespace UART
namespace App {
    namespace UART {
        void send() {
            cout << "APP UART" << endl;
        }
    }
}
int main() {
    int mode;
    cin >> mode;

    // Call correct send() function here
    if (mode == 1)
        Boot::UART::send();
    if (mode == 2)
        App::UART::send();
    return 0;
}

Solving Approach

 

 

 

 

 

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Input

1

Expected Output

BOOT UART