CProgramming Does anyone know a way to assign values to a wh

C-Programming. Does anyone know a way to assign values to a whole row in an array in C. The array is a 4x4 and the hexadecimal values are 0x00,0xff,0x55,0xaa. Each row would have one of these values. The code also needs to sum all of the elements in the array.

Solution

Modified:

#include<stdio.h>
int main()
{
   int columns=4, rows=4, sum=0; //-- assigned rows and columns as 4, since it\'s as 4x4 matrics array
   //unsigned int hex[rows][columns];
   unsigned int hex[4][4] = {0x00, 0x02, 0x03, 0x04, 5, 0xff, 0x07, 0x08, 0x09, 0x10, 0x11, 0x55, 0x13, 0x14, 0x15, 0xaa}; //-- assign hexadecimal values

   for(rows=0; rows<=3; rows++)
   {
       for(columns=0;columns<=3;columns++)
       {
          //printf(\"Enter value for hex[%d][%d]:\", rows, columns); //-- read the value, both decimal and hexadecimal
          //scanf(\"%x\", &hex[rows][columns]);
          sum += hex[rows][columns]; //-- sum of the array element
       }
    }
   printf(\"Sum of the array element = %x\ \", sum); //-- print the result of sum of the element
    return 0;
}
OUTPUT:
Sum of the array element = 281

==================================

#include<stdio.h>
int main()
{
   int columns=4, rows=4, sum=0, sum1=0; //-- assigned rows and columns as 4, since it\'s as 4x4 matrics array
   unsigned int hex[rows][columns];

   for(rows=0; rows<=3; rows++)
   {
       for(columns=0;columns<=3;columns++)
       {
          printf(\"Enter value for hex[%d][%d]:\", rows, columns); //-- read the value, both decimal and hexadecimal
          scanf(\"%x\", &hex[rows][columns]);
          sum += hex[rows][columns]; //-- sum of the array element
       }
    }
   printf(\"Sum of the array element = %x\ \", sum); //-- print the result of sum of the element
    return 0;
}

OUTPUT:
Enter value for hex[0][0]:0x00
Enter value for hex[0][1]:2
Enter value for hex[0][2]:3
Enter value for hex[0][3]:4
Enter value for hex[1][0]:5
Enter value for hex[1][1]:0xff
Enter value for hex[1][2]:7
Enter value for hex[1][3]:8
Enter value for hex[2][0]:9
Enter value for hex[2][1]:10
Enter value for hex[2][2]:11
Enter value for hex[2][3]:0x55
Enter value for hex[3][0]:13
Enter value for hex[3][1]:14
Enter value for hex[3][2]:15
Enter value for hex[3][3]:0xaa
Sum of the array element = 281

Here the input value is hexadecimal and it returns the sum of value is also hexadecimal,
it will add like,
hex = dec
0x00 = 0
0xff = 255
10   = 16
11   = 17
0x55 = 85
13   = 19
14   = 20
15   = 21
0xaa = 170
0+2+3+4+5+255+7+8+9+16+17+85+19+20+21+170 = 641 this is the decimal value.
281 is a hexadecimal value.