Nested Namespace Declaration

#include <iostream>
using namespace std;

namespace Config {
    namespace ADC { 
        int resolution = 12;
         }
    namespace PWM { 
        int frequency = 1000; 
        }
}

int main() {
    // your code here: print resolution and frequency with their namespace paths
    cout<<"ADC.resolution="<<Config::ADC::resolution<<endl;
    cout<<"PWM.frequency="<<Config::PWM::frequency<<endl;

    return 0;
}