Looking for program in C++ coding: Sample birthday files: bday1.txt ------------

Question

Looking for program in C++ coding:

Sample birthday files:

bday1.txt

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bday2.txt

Problem A: Birthdays again. (20 points) Write a program that opens a file of the users choice that contains a list of birthdays. Extract from this file two things: (1) the date with the most common birthday (all of them) and (2) the month with the most people born. We will not test for a tie in either of these statistics. The file tested will always be in the format: mm/dd/yyyy Example 1 (user input is underlined): Enter file name: 1.txt. bday Most common birthday Most common birthday month Example 2 (user input is underlined): Enter file name: bday 2.txt Most common birthday 8/15 Most common birthday month

Explanation / Answer

PROGRAM CODE:

/*
* CommonBirthdays.cpp
*
* Created on: 22-Mar-2017
* Author: kasturi
*/

#include <iostream>
#include <fstream>
#include <sstream>
#include <cstdlib>
using namespace std;
//Main program which would read the file and find the common birthday and month
int main()
{
   string filename;
   int date[32];
   int month[13];
   for(int i=1; i<32; i++)
   {
       date[i] = 0;
   }
   for(int i=1; i<13; i++)
   {
       month[i] = 0;
   }
   cout<<"Enter file name: ";
   cin>>filename;
   ifstream in(filename);
   string line;
   while(getline(in, line))
   {
       int f_date, f_month;
       f_month = stoi(line.substr(0, line.find("/")));
       line = line.substr(line.find("/")+1);
       f_date = stoi(line.substr(0, line.find("/")));
       date[f_date]++;
       month[f_month]++;
   }
   in.close();
   cout<<"Most common birthday: ";
   int d_max = date[1], m_max = month[1], index_date = 1, index_month = 1;
   for(int i=1; i<32; i++)
   {
       if(d_max < date[i])
       {
           d_max = date[i];
           index_date = i;
       }
   }
   for(int i=1; i<13; i++)
   {
       if(m_max < month[i])
       {
           m_max = month[i];
           index_month = i;
       }
   }
   cout<<index_month<<"/"<<index_date<<endl;
   cout<<"Most common birthday month: ";
   cout<<index_month;
   return 0;
}

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