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Program to print the sum of boundary elements of a matrix | FACE Prep

Published on 11 Mar 2020

Program to print the sum of boundary elements of a matrix is discussed here. Given a matrix, the task is to print the boundary elements of the matrix and display their sum.

For example, consider the matrix given below.

1 2 3

4 5 6

7 8 9

Boundary Matrix

1 2 3
4   6
7 8 9


Sum of boundary elements: 1 + 2 + 3 + 4 + 6 + 7 + 8 + 9 = 40

Algorithm to print the sum of boundary elements of a matrix

• Input the order of the matrix.
• Input the matrix elements.
• Print all the boundary elements of the matrix.
• Find the sum of the boundary elements.
• Print sum.

Program to print the sum of boundary elements of a matrix

C
C++
Java
Python 3

Output
Enter the order of the matrix : 3 3
Input the matrix elements :
1 2 3
4 5 6
7 8 9
Boundary Matrix :
1 2 3
4   6
7 8 9
Sum of boundary is 40

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