C program: Sum Of Elements In A Matrix

Write a C program to read a matrix A (MxN) and to find the following using functions
a) Sum of the elements of each row
b) Sum of the elements of each column
c) Find the sum of all the elements of the matrix
Output the computed results with suitable headings.
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#include <stdio.h>
#include <conio.h>

void main()
int arr[10][10];
int i, j, row, col, rowsum, colsum,sumall=0;

/* Function declaration */
int Addrow(int A[10][10], int k, int c);
int Addcol(int A[10][10], int k, int c);


printf("Enter the order of the matrixn");
scanf("%d %d", &row, &col);

printf("Enter the elements of the matrixn");
for(i=0; i<row; i++)
for(j=0; j< col; j++)
scanf("%d", &arr[i][j]);

printf("Input matrix isn");
for(i=0; i<row; i++)
printf("%3d", arr[i][j]);

/* computing row sum */
for(i=0; i<row; i++)
rowsum = Addrow(arr,i,col);
printf("Sum of row %d = %dn", i+1, rowsum);

for(j=0; j<col; j++)
colsum = Addcol(arr,j,row);
printf("Sum of column %d = %dn", j+1, colsum);

/* computation of all elements */
for(j=0; j< row; j++)
sumall = sumall + Addrow(arr,j,col);

printf("Sum of all elements of matrix = %dn", sumall);


/* Function to add each row */
int Addrow(int A[10][10], int k, int c)
int rsum=0, i;
for(i=0; i< c; i++)
rsum = rsum + A[k][i];

/* Function to add each column */
int Addcol(int A[10][10], int k, int r)
int csum=0, j;
for(j=0; j< r; j++)
csum = csum + A[j][k];
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