ADC Config Flags

#include <iostream>
#include <cstdint>
using namespace std;

// your code here: declare enum class AdcConfig : uint8_t 
// with ChannelEnable=1, InterruptEnable=2, DMAEnable=4
enum class AdcConfig
{
   ChannelEnable = 1,
   InterruptEnable = 2,
   DMAEnable = 4
};
void printConfig(uint8_t cfg) {
   int flag = 0;
   if (cfg & static_cast<uint8_t>(AdcConfig::ChannelEnable)) {
       cout << "ChannelEnable ";
       flag = 1;
   }
   if (cfg & static_cast<uint8_t>(AdcConfig::InterruptEnable)) {
       cout << "InterruptEnable ";
       flag = 1;
   }
   if (cfg & static_cast<uint8_t>(AdcConfig::DMAEnable)) {
       cout << "DMAEnable ";
       flag = 1;
   }
   if (!flag) {
       cout << "None";
   }
}

int main() {
   int ch, intr, dma;
   cin >> ch >> intr >> dma;
   uint8_t cfg = 0;
   if (ch)   cfg |= static_cast<uint8_t>(AdcConfig::ChannelEnable);
   if (intr) cfg |= static_cast<uint8_t>(AdcConfig::InterruptEnable);
   if (dma)  cfg |= static_cast<uint8_t>(AdcConfig::DMAEnable);
   printConfig(cfg);
   return 0;
}