Example: matrix addition in c //This program is for matrix addition by programiz.com # include <stdio.h> int main ( ) { int r , c , a [ 100 ] [ 100 ] , b [ 100 ] [ 100 ] , sum [ 100 ] [ 100 ] , i , j ; printf ( "Enter the number of rows (between 1 and 100): " ) ; scanf ( "%d" , & r ) ; printf ( "Enter the number of columns (between 1 and 100): " ) ; scanf ( "%d" , & c ) ; printf ( "\nEnter elements of 1st matrix:\n" ) ; for ( i = 0 ; i < r ; ++ i ) for ( j = 0 ; j < c ; ++ j ) { printf ( "Enter element a%d%d: " , i + 1 , j + 1 ) ; scanf ( "%d" , & a [ i ] [ j ] ) ; } printf ( "Enter elements of 2nd matrix:\n" ) ; for ( i = 0 ; i < r ; ++ i ) for ( j = 0 ; j < c ; ++ j ) { printf ( "Enter element a%d%d: " , i + ...