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