hey guys, i have a question, heres my program and what i need to do.

http://www.sci.brooklyn.cuny.edu/~jones/cisc1110/a5f12.pdf <----what i need to do

i have errors while trying to run this program on stuff not being declared, but i dont know how and where to declare it, can some1 help me please? its a really fast 5 mins top question. its urgent, i have a test on this program and i need to fix this program asap, ty!!^

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

void readdata(int &, int[], int[]);
void printarr(int, int[]);
int smallest(int, int[]);
void construct(int, int[], int[], int &);
void whatshigher(int[], int[], int, int &, int &, int &);

ifstream infile5;
ofstream logFile;

int main()
{
int n = 0;

infile5.open("Scores.txt");
logFile.open("Log.txt");

int counter1 = 0;
int counter2 = 0;
int counter3 = 0;

readdata(n, score1, score2);

logFile<<"There are " <<n<<" values in each array"<<endl;

logFile<<"Score1 array: ";
printarr(n, score1);

logFile<<"Score2 array: ";
printarr(n, score2);
logFile<<endl;

logFile<<"The smallest value in scores1 is: "<<smallest(n, score1)<<endl;
logFile<<"The smallest value in scores2 is: "<<smallest(n, score2)<<endl<<endl;

logFile<<"The scoresum array: ";
construct(n, score1, score2, scoresum);

logFile<<"The smallest value in scoresum is: "<<smallest(n, scoresum)<<endl<<endl;

whatshigher(score1, score2, n, counter1, counter2, counter3);

logFile<<"Scores1 was larger "<<counter1<<" times"<<endl;
logFile<<"Scores2 was larger "<<counter2<<" times"<<endl;
logFile<<"The two scores were equal "<<counter3<<" times"<<endl;

logFile.close();

return 0;
}

void readdata(int &n, int arr1[], int arr2[])
{
infile5 >> n;

for(int i=0;i < n;i++)
{
infile5 >> arr1[i];
infile5 >> arr2[i];
}
return;
}

void printarr(int num, int vals[])
{
for(int i = 0; i < num; ++i)
{
logFile<< vals[i] << " ";
}
logFile<<endl;
return;
}

int smallest(int lim, int nums[])
{
int lowest = nums[0];
for(int i = 1; i < lim; ++i)
{
if(nums[i] < lowest)
{
lowest = nums[i];
}
}
return lowest;
}

void construct(int k, int first[], int second[], int *&sumarr)
{
sumarr = new int[k-1];
for(int i = 0; i < k; ++i)
{
sumarr[i] = first[i] + second[i];
}

printarr(k, sumarr);
return;
}

void whatshigher(int first[], int second[], int n, int &counter1, int &counter2, int &counter3)
{
for(int i = 0; i < n; ++i)
{
if(first[i] > second[i])
{
logFile<<"In position "<<i<<", array score1 is larger: "<< first[i] << " is greater than " << second[i]<<endl;
counter1++;
}
else if(first[i] < second[i])
{
logFile<<"In position "<<i<<", array score2 is larger: "<< second[i] << " is greater than " << first[i]<<endl;
counter2++;
}
else
{
logFile<<"In position "<<i<<", the two arrays have the same value: " << first[i]<<endl;
counter3++;
}
}
logFile<<endl;
return;
}

Without getting to far into it, you need to declare variables for score1, score2, and scoresum.

In earlier CS classes this would be done like this:


Later on you would be expected to create the arrays dynamically so you would have this:


In the first case, you would just pass the arrays to your read functions like you do.

In the second case you would have to use the format you have in your "construct" function: int *&sumarr
Also your read functions will have to create the arrays. So after you read in "n", you would have to have:



LMK if this helps or if you have any more questions.