Calculate average using Two-Dimensional Array in C++
By: Ignatius in C++ Tutorials on 2012-03-16
This simple C++ program illustrates the use of two-dimensional arrays. This program calculates the average of all the elements in the integer array named x. For this, the program uses two nested for loops. The outer loop with index i provides the row subscript. The nested for loops therefore accesses each element of the array and the inner loop with index j provides the column subscript.
#include <iostream> using namespace std; #define m 4 #define n 5 int main() { int i, j, total = 0;
// a 4x5 or [4][5] array variable... int q[m][n]={{4,5,6,2,12},{10,25,33,22,11}, {21,32,43,54,65},{3,2,1,5,6}}; float average;
// the outer for loop, read row by row... for(i=0; i<m; i++) // the inner for loop, for every row, read column by column for(j=0; j<n; j++) // the get the summation of the array elements. { // the display the array... cout<<"q["<<i<<"]["<<j<<"] = "<<q[i][j]<<endl; total=total + q[i][j]; } // calculate the average, notice the simple typecast casted from int to float... average = (float)total/(float) (m*n); cout<<"\nThis program will calculate the average of the"; cout<<"\n4 x 5 array, which means the sum of the"; cout<<"\narray's element, divide the number of the"; cout<<"\narray's element...."; cout<<"\nProcessing.... PLEASE WAIT\n"; // display the average cout<<"Average = "<<total<<"/"<<m*n<<endl; cout<<"\nThe Average = "<<average<<endl; return 0; }
Add Comment
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
- Your name, rating, website address, town, country, state and comment will be publicly displayed if entered.
- Aside from the data entered into these form fields, other stored data about your comment will include:
- Your IP address (not displayed)
- The time/date of your submission (displayed)
- Your email address will not be shared. It is collected for only two reasons:
- Administrative purposes, should a need to contact you arise.
- To inform you of new comments, should you subscribe to receive notifications.
- A cookie may be set on your computer. This is used to remember your inputs. It will expire by itself.
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
- Although the administrator will attempt to moderate comments, it is impossible for every comment to have been moderated at any given time.
- You acknowledge that all comments express the views and opinions of the original author and not those of the administrator.
- You agree not to post any material which is knowingly false, obscene, hateful, threatening, harassing or invasive of a person's privacy.
- The administrator has the right to edit, move or remove any comment for any reason and without notice.
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
- Data Science
- Android
- React Native
- AJAX
- ASP.net
- C
- C++
- C#
- Cocoa
- Cloud Computing
- HTML5
- Java
- Javascript
- JSF
- JSP
- J2ME
- Java Beans
- EJB
- JDBC
- Linux
- Mac OS X
- iPhone
- MySQL
- Office 365
- Perl
- PHP
- Python
- Ruby
- VB.net
- Hibernate
- Struts
- SAP
- Trends
- Tech Reviews
- WebServices
- XML
- Certification
- Interview
categories
Related Tutorials
Calculating total based on the given quantity and price in C++
Sorting an array of Strings in C++
Matrix using nested for loops in C++
Compute the square root of the sum of the squares of an array in C++
Calculate average using Two-Dimensional Array in C++
Two-Dimensional Array Manipulation in C++
Compiling and Linking Multiple Source Files in C++
Escape Sequences for Nonprintable Characters in C++
Using the Built-in Arithmetic Types in C++
Comments