Question

In C++. I'm not too sure how to start this. Any help would be appreciated. 1st picture is the problem. The 2nd is the data file.
Write a routine that reads enrollment data about students in seven colleges for years 2010-2016 from a data file (problem 6.dat) into a 7x7, 2-D array of integers - the file is organized with 7 whole numbers per line, separated by a single space. Your main() should declare/create the array, call the routine to read the data into the array, and call a second routine to print the data. Each row represents a college and each column represents a year (in both the file and the array). You must pass the array into each routine as a parameter. The second routine (print and total) should: • label the columns and rows - number each college/row (left-most column) • print the data for each college (rows) and year (columns) • calculate and print the total number of students enrolled per college (display it in right-most column) calculate and print the total number of students enrolled per year (display it in a row at the bottom) neatly align the data .

Answer 1

Code:

#include<iostream>

#include<fstream>

using namespace std;

void input_routine(int dataArray[7][7])

{

ifstream inputFile; //Stream class to read from files

inputFile.open("problem6.dat"); //open input file

if(!inputFile)

{

cout<<"Can not open file!!"; // if file is not open then show FileIOError

exit(0);

}

for(int i=0;i<7;i++)

{

for(int j=0;j<7;j++)

{

inputFile>>dataArray[i][j]; //read data from data file and insert into array

}

}

}

void output_routine(int dataArray[7][7])

{

int totalPerCollege=0,totalPerYear=0;

printf("Collage NO.\t\t\t Number Of Students(2010-2016)\t\t\t Total per college\n");

for(int i=0;i<7;i++)

{

printf("%10d",i+1);

for(int j=0;j<7;j++)

{

totalPerCollege=totalPerCollege+dataArray[i][j]; //calculate total students per collage

printf("%10d",dataArray[i][j]); //print number of students enrolled per year

}

printf("%10d",totalPerCollege); //print total students per collage

totalPerCollege=0;

cout<<"\n";

}

printf("Total students\nper year ");

for(int j=0;j<7;j++)

{

for(int i=0;i<7;i++)

{

totalPerYear=totalPerYear+dataArray[i][j]; //calculate total students per year

}

printf("%10d",totalPerYear); //print total students per year

}

}

int main()

{

int dataArray[7][7]; // variable declaration

input_routine(dataArray); //call input_routine to read data into array

output_routine(dataArray);//call output_routine to print data

}

} 1 #include<iostream> 2 #include<fstream> 3 using namespace std; 4 void input_routine(int dataArray[7][7]) 5 { 6 ifstream inputFile; //Stream class to read from files 7 inputFile.open("problem6.dat"); //open input file 8 if(!inputFile) 90 { 10 cout<<"Can not open file!!"; // if file is not open then show FileIOError 11 exit(); 12 13 for(int i=0; i<7; i++) 14 { 15 for(int j=0; j<7; j++) 16 17 inputFile>>dataArray[i][j]; //read data from data file and insert into array 18 19 20 21 void output_routine(int dataArray[7][7]) 22 { 23 int totalPerCollege=0, totalPerYear=0; 24 printf("Collage No.\t\t\t Number of Students (2010-2016)\t\t\t Total per college\n"); { به

{ { mmmm } 25 for(int i=0;i<7;i++) 26 27 printf("%10d", i+1); 28 for(int j=0; j<7; j++) 29 30 totalPerCollege=totalPerCollege+dataArray[i][j]; //calculate total students per collage 31 printf("%10d", dataArray[i][j]); //print number of students enrolled per year 32 33 printf("%10d", totalPercollege); //print total students per collage 34 totalPerCollege=0; 35 cout<<"\n"; 36 37 printf("Total students\nper year "); 38 for(int j=0; j<7; j++) 399 40 for(int i=0;i<7;i++) 41 42 totalPerYear-totalPerYear+dataArray[i][j]; //calculate total students per year 43 } 44 printf("%10d", totalPerYear); //print total students per year 45 46 47 int main() 489 { 49 int dataArray[7][7]; // variable declaration 50 input_routine (dataArray); //call input_routine to read data into array 51 output_routine(dataArray);//call output_routine to print data 521 { {

Output

C:\Users\Pritam Mondal\Downloads\routine.exe Collage NO. Number of Students (2010-2016) 1 100 110 121 133 146 2 22456 22551 22503 23004 2330 3 1234 1345 1456 1567 1789 4 4321 4432 4567 4444 4444 5 12000 13000 14000 15000 16000 6 1200 1300 1400 1500 1600 7 6655 6677 6688 6699 6700 Total students per year 47966 97381 148116 200463 233472 160 23556 1890 4040 17000 1700 6800 176 23525 1999 4846 18000 1800 6900 Total per college 946 139925 11280 31094 105000 10500 47119 288618 345864 Process exited after 0.3852 seconds with return value o Press any key to continue..

Input file

| 100 110 121 133 146 160 176 2 22456 22551 22503 23004 2330 23556 23525 3 1234 1345 1456 1567 1789 1890 1999 4 14321 4432 4567 4444 4444 4040 4846 5 12000 13000 14000 15000 16000 17000 18000 6 1200 1300 1400 1500 1600 1700 1800 7 6655 6677 6688 6699 6700 6800 6900