Resolve UART Namespaces

#include <iostream>
using namespace std;

// Create namespace Boot with nested namespace UART
namespace Boot{
    namespace UART {
        void send()
        {
            cout << "BOOT UART";
        }
    }
}
// Create namespace App  with nested namespace UART
namespace App{
    namespace UART {
        void send(){
            cout << "APP UART";
        }
    }
}

int main() {
    int mode;
    cin >> mode;

    if(mode == 1) 
    {
        Boot::UART::send();
    }
    else if (mode == 2)
    {
        App::UART::send();
    }

    return 0;
}

Solving Approach

 

 

 

 

 

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Input

1

Expected Output

BOOT UART