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Answer to Question #45495 in C++ for deepa

Question #45495
an electricity board charges the following rates to domestic users:-
for the first 100 units-40p/unit
for the next 200 units-50p/unit
beyond 300 units-60p/unit
write a program to read the names of users and number of units consumed and print out the charges with names.
Expert's answer
#include <iostream>
#include <string>
int main() {
const int first100 = 40;
const int next200 = 50;
const int beyond300 = 60;
std::string name;
int unitsConsumed, payment = 0;
std::cout << "Please enter your name" << std::endl;
std::cin >> name;
std::cout << "Please enter units consumed" << std::endl;
std::cin >> unitsConsumed;
if ( unitsConsumed <= 100 && unitsConsumed > 0 ) {
  payment = first100 * unitsConsumed;
} else if (unitsConsumed > 100 && unitsConsumed <= 300 ) {
  payment = next200 * unitsConsumed;
} else if (unitsConsumed > 300 ) {
  payment = beyond300 * unitsConsumed;
} else {
  std::cout << "Ammount can not be negative. Ending program..." << std::endl;
  return 0;
}
std::cout << "Dear " << name << ",\nYou have consumed " << unitsConsumed << " units, which requires " << payment << " credits." << std::endl;
return 0;
}

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