Question

WRITE A C++ PROGRAM:

QUESTION 1

1. Assume you have a hobby to collect a particular type of items. Specify the category to which the items you collect belong to ____________________________
   1. [2 points] Define a struct with the name the same as the category that you filled in the blank above
   2. [4 points] The struct must have at least two members corresponding to properties relevant to the items in the category you specified. The struct members must have names meaningful to the items.
   3. [2 points] Declare an array to store 100 of your hobby items.
   4. [2 points] Declare another array to store 100 of the hobby items that belong to a friend
   5. [2 points] Declare a two dimensional array called matchingPairs that has a maximum of 100 rows. The values in this array will be indices to arrays declared in c and d.
   6. [5 points] Write a function to read values into any array similar to the ones in c and d. Note that when the function returns, the array that is passed into the function must contain the values read in.
   7. [5 points] Write statements to call the function in f to read values into arrays declared in c and d.
   8. [5 points] Write a function that takes in two arrays similar to the ones in c and d and returns an array similar to the one in e. The function must compare elements in the input arrays and store indices where matches are found. For instance, if the item in array index 5 of the first array matches the item in array index 2 of the second array, then 5 and 2 are stored in one row in the third array. Care must be taken to ensure that the first two arrays remain intact, that is no changes happen in the first two arrays.
   9. [5 points] Write code to call the function in h and print the results of the array returned by the function in h.
   10. Adequate comments in code [3 points]
   11. Program structure and readability [5 points]

Answer 1

ANSWER :-

GIVEN THAT :-

#include <iostream>
#include <cstring>

using namespace std;

const int hobbyItems=100;
int matchingPairs[hobbyItems][2]; //stores the matching pairs

struct currency{ //hobby is collection of coins of different countries
char country[20];
int denomination;
};

void readArray(currency items[]){ //read the values in the parameter
int counter;
cout<<"Enter the country name and currency denomination\n";
for(counter=0;counter<hobbyItems;counter++){
cin>>items[counter].country>>items[counter].denomination;
}
}

void displayArray(currency items[]){ //display the hobby items of the parameter passed
int counter;
for(counter=0;counter<hobbyItems;counter++){
cout<<items[counter].country<<"\t"<<items[counter].denomination<<"\n";
}
}

int findMatchingPairs(currency myItems[],currency friendItems[]){
int i,j;
int matchCount=0;
//find the matching pairs
//compare each item of my hobby with each element of friend hobby
for(i=0;i<hobbyItems;i++){
for(j=0;j<hobbyItems;j++){
if((!strcmp(myItems[i].country,friendItems[j].country))&&(myItems[i].denomination==friendItems[j].denomination)){
matchingPairs[matchCount][0]=i;
matchingPairs[matchCount][1]=j;
matchCount++;
}
}
}
return matchCount;
}

int main()
{
currency myItems[hobbyItems],friendItems[hobbyItems];
int matchCount;
int i; //used as counter for loops

//read the hobby items
readArray(myItems);
readArray(friendItems);
  
matchCount=findMatchingPairs(myItems,friendItems);
  
  
//display my hobby items and friend hobby items
cout<<"My hobby items:\n";
displayArray(myItems);
cout<<"Hobby items of my friend:\n";
displayArray(friendItems);
  
//display the matching pairs
cout<<matchCount<<" matching enteries found";
for(i=0;i<matchCount;i++){
cout<<"\nMy item with index "<<matchingPairs[i][0]<<" matches with friend's item with index "<<matchingPairs[i][1];
}
  
return 0;
}

The program has been attached and the naming of the variables will ensure easy readability.The hobby has been assumed to be collection of currencies of different countries where each currency has two properties - country and denomination.

R1a- structure with name currency

R1b- country and denomination members

R1c- myItems[hobbyItems]

R1d- friendItems[]

R1e- matchingPairs[hobbyItems][2]

R1f- void readArray(currency items[])

R1g- readArray(myItems);

readArray(friendItems);

R1h- int findMatchingPairs(currency myItems[],currency friendItems[]){

R1i- matchCount=findMatchingPairs(myItems,friendItems);

  

THANKYOU