2021-07-15-C++学习笔记

A local supermarket is running a promotion: each Nth customer will receive one item for free. Customers names are sequentially given as array of strings (see template).
Write a function that receives the array of customers, its size, and the N number as arguments, and prints the names of the lucky customers each in a new line.

Sample Input
3

Sample output
Rayan
Bruce
Richard
Mary

//my code
#include <iostream>
#include <string>
using namespace std; 
//complete the function
void winners(string customers[13],int x,int m) {
  for(x=0;x<13;x++){
     if((x+1)%m==0){
  	cout<<customers[x]<<endl;
      }

    }
    
}

int main() {

    string customers[] = {"Alice", "Bob", "Rayan", "Emma", "Ann", "Bruce", "Synthia", "Daniel", "Richard", "Sam", "Nick", "Mary", "Paul"};

    //getting the lucky number as input
    int n;
    cin >> n;
    //call function
    winners(customers, 13, n);
    
    return 0;
}