Program to find the sum of an upper triangular matrix

Problem Statement:- Program to find the sum of an upper triangular matrix.

Sample Input/Output:-


Sample Input First:3 3

1 2 3 4 5 6 7 8 9

Sample Output First: 

19

Sample Input Second: 3 3

9 3 2 5 7 8 6 1 2

Sample Output Second: 

12


Data requirement:-


  Input Data:- row_size, col_size, matrix[][]


  Output Data:-sum


  Additional Data:- i, j


Program in C

Here is the source code of the C Program to find the sum of an upper triangular matrix.


Code:


#include<stdio.h> int main() { int row_size,col_size; //Get size of matrix printf("Enter the row Size Of the Matrix:"); scanf("%d",&row_size); printf("Enter the columns Size Of the Matrix:"); scanf("%d",&col_size); int matrix[row_size][col_size]; //Taking input of the matrix int i,j; printf("Enter the Matrix Element:\n"); for(i=0;i<row_size;i++) { for(j=0;j<col_size;j++) { scanf("%d",&matrix[i][j]); } } //Calculate sum of upper triangular matrix element int sum=0; for(i=0;i<row_size;i++) { for(j=0;j<col_size;j++) { if(i>j) { sum+=matrix[i][j]; } } } //display the sum of upper triangular matrix element printf("Sum of Upper Triangular Matrix Elements is: %d",sum); }


Input/Output:

Enter the row Size Of the Matrix:3 Enter the columns Size Of the Matrix:3 Enter the Matrix Element: 1 2 3 4 5 6 7 8 9 Sum of Upper Triangular Matrix Elements is: 19


Program in C++

Here is the source code of the C++ Program to find the sum of an upper triangular matrix.


Code:


#include<iostream> using namespace std; int main() { int row_size,col_size; //Get size of matrix cout<<"Enter the row Size Of the Matrix:"; cin>>row_size; cout<<"Enter the columns Size Of the Matrix:"; cin>>col_size; int matrix[row_size][col_size]; //Taking input of the matrix int i,j; cout<<"Enter the Matrix Element:\n"; for(i=0;i<row_size;i++) { for(j=0;j<col_size;j++) { cin>>matrix[i][j]; } } //Calculate sum of upper triangular matrix element int sum=0; for(i=0;i<row_size;i++) { for(j=0;j<col_size;j++) { if(i>j) { sum+=matrix[i][j]; } } } //display the sum of upper triangular matrix element cout<<"Sum of Upper Triangular Matrix Elements is: "<<sum; }


Input/Output:

Enter the row Size Of the Matrix:3 Enter the columns Size Of the Matrix:3 Enter the Matrix Element: 9 3 2 5 7 8 6 1 2 Sum of Upper Triangular Matrix Elements is: 12


Program in Java

Here is the source code of the Java Program to find the sum of an upper triangular matrix.


Code:


import java.util.Scanner; public class SumOfUpperTriangularMatrix { public static void main(String[] args) { Scanner cs=new Scanner(System.in); int row_size,col_size; //Get size of matrix System.out.print("Enter the row Size Of the Matrix:"); row_size=cs.nextInt(); System.out.print("Enter the columns Size Of the Matrix:"); col_size=cs.nextInt(); int matrix[][] =new int[row_size][col_size]; //Taking input of the matrix int i,j; System.out.println("Enter the Matrix Element:"); for(i=0;i<row_size;i++) { for(j=0;j<col_size;j++) { matrix[i][j]=cs.nextInt(); } } //Calculate sum of upper triangular matrix element int sum=0; for(i=0;i<row_size;i++) { for(j=0;j<col_size;j++) { if(i>j) { sum+=matrix[i][j]; } } } //display the sum of upper triangular matrix element System.out.println("Sum of Upper Triangular Matrix Elements is: "+sum); cs.close(); } }


Input/Output:

Enter the row Size Of the Matrix:2
Enter the columns Size Of the Matrix:2
Enter the Matrix Element:
4 5
6 7
Sum of Upper Triangular Matrix Elements is: 6


Program in Python

Here is the source code of the Python Program to find the sum of an upper triangular matrix.


Code:


# Get size of matrix row_size=int(input("Enter the row Size Of the Matrix:")) col_size=int(input("Enter the columns Size Of the Matrix:")) matrix=[] # Taking input of the matrix print("Enter the Matrix Element:") for i in range(row_size): matrix.append([int(j) for j in input().split()]) #Calculate sum of Upper triangular matrix element sum=0 for i in range(len(matrix)): for j in range(len(matrix[0])): if i>j: sum += matrix[i][j] # display the sum of the Upper triangular matrix element print("Sum of Upper Triangular Matrix Elements is: ",sum)


Input/Output:

Enter the row Size Of the Matrix:3 Enter the columns Size Of the Matrix:3 Enter the Matrix Element: 9 2 3 4 5 6 1 2 2 Sum of Upper Triangular Matrix Elements is: 7



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