Problem solving through Programming In C Session-1 Problem - 3 Programming Solution

 

Session-1 Problem - 3

Due on 2020-12-04, 11:00 IST

Write a program to find the total sum of the diagonal elements of a square matrix. 

Your last recorded submission was on 2020-12-04, 10:25 IST

Select the Language for this assignment.      --                     C               

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#include<stdio.h>

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​

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int main()

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{

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    int a[10][10], n; 

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    scanf("%d", &n); //Size of the matrix is taken from test data

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​

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//Use the printf statement as:

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//printf("Sum of the diagonal elements is = %d",variable_name);

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int i,j,sum1=0, sum2=0, sum=0;

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​

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for(i=0; i<n; i++)

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{

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    for(j=0; j<n; j++)

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    {

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        scanf("%d", &a[i][j]);

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    }

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}

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​

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​

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 for(i=0;i<n;i++)

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    {

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         sum1=sum1 + a[i][i];

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    }

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    for(i=0;i<n;i++)

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    {

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         sum2=sum2 + a[i][n-1-i];

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    }

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  sum = sum1+sum2;

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    printf("Sum of the diagonal elements is = %d",sum);

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}