Write a program to find the sum of the diagonals of the given matrix
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Source Code
#include<stdio.h>
#include<conio.h>
int main (int argc, char *argv[])
{
clrscr();
int m[10][10];
int i,j,n,sld=0,srd=0,sd=0,t=0;
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{
m[i][j]=0;
}
}
printf("\n Enter size of a square matrix:");
scanf("%d",&n);
printf("\n Enter the two matrices: \n");
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
printf("Enter element %d %d of m1: ",(i+1),(j+1));
scanf("%d",&m[i][j]);
}
}
printf("\n The matrix is: \n");
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
printf("%d ",m[i][j]);
}
printf("\n");
}
for(i=0;i<n;i++)
{
sld+=m[i][i];
srd+=m[i][n-i-1];
}
if(n%2!=0)
{
t=n/2;
sd=sld+srd-m[t][t];
}
else
sd=sld+srd;
printf("\n The sum of diagonals of matrix are:\n %d : left diagonal\n %d : right diagonal\n %d : sum of the two diagonals",sld,srd,sd);
getch();
}
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