Question

Write a function getScores(...) that is given a string, an int type array to fill and the max number of elements in the array as parameters and returns an integer result. The function will find each substring of the given string separated by space characters and place it in the array. The function returns the number of integers extracted.

For example:

int values[3];
getScores("123 456 789", values, 3 ); 

would return the count of 3 and fill the array with integers 123, 456, 789.

Note: The write-up explains a built-in function available which converts a string into an integer.

C++ Only Please.

Answer 1

#include <iostream>

//including the string stream library to convert the string to number

#include <sstream>

using namespace std;

//function to extract and convert the numbers from text

//and store them in array

void getScores(string text,int values[],int count)

{

                //finding the length of the text

                int len=text.length();

                //declaring required variables

                //i to store current pointing index in text

                //index to store the index of the array

                int i=0,index=0;

                //number is the string to store each number in string format

                string number="";

               

                //loop to extract and convert the text to numbers

                //and add the numbers to array

                while(i<=len)

                {

                                //if the individual number is completed

                                if(text[i]==' ' || i==len)

                                {

                                                //creating the stream of the string and converting into number

                                                stringstream geek(number);

                                                //storing the int format of string to array

                                                geek>>values[index];

                                                //updating the pointer in array

                                                index++;

                                                //upadting the number variable

                                                number="";

                                                //end

                                }

                                //if the current character is a digit

                                else

                                {

                                                //updating the number variable

                                                number=number+text[i];

                                                //end

                                }

                                //updating the pointer of the text

                                i++;

                                //eend of loop

                }

                //end of function

}

//main function to test the function

int main()

{

                //sample run 1

                //creating the creating the variables

                int values[3],i;

                //calling the function

                getScores("123 456 789", values, 3 );

                //printing the header

                cout<<"getScores(\"123 456 789\", values, 3 )        :: ";

                //printing the int array

                for(i=0;i<3;i++) cout<<values[i]<<",";

                //end of sample run 1

               

               

                //sample run 2

                //creating the creating the variables

                int values_2[5];

                //calling the function

                getScores("98 76 54 123 1", values_2, 5 );

                //printing the header

                cout<<"\ngetScores(\"98 76 54 123 1\", values_2, 5 ) :: ";

                //printing the int array

                for(i=0;i<5;i++) cout<<values_2[i]<<",";

                //end of sample run 2

               

                //end of main function

}