Question

*Suppose I have a C++ Text File That Looks Like This:*

Text File:

10 20 30 40

11 40 50 60

12 50 60 70

I want to be able to read the 3rd column which have the numbers "30 , 50, 60" and find their average. How do I read data from a text file in columns instead of rows?

Answer 1

code

#include<iostream>
#include<fstream>

using namespace std;

int main()
{
   int sum=0;
   int num1,num2,num3,num4,count=0;
   ifstream inFile;
   inFile.open("Numbers.txt");
   while(inFile)
   {
       inFile>>num1>>num2>>num3>>num4;
       sum+=num3;
       count++;
   }
   cout<<"Average of third column number is: "<<double(sum)/double(count)<<endl;
}

output

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