Assume that the array X is defined and initialized with the following statement:

Question

Assume that the array X is defined and initialized with the following statement: double X[]= {2.5, 1.5,4.0, 7.0, 3.5, 6.5, 8.5, 1.0}; Write two C programs to sort this array. One is in ASCENDING order. The other is in DESCENDING order. Print out the two sorted arrays. Write a C program that calculates three separated SUMS for columns 1, 3 and 4 of the following two-dimensional array. Print out the three separated sums. ONE SUM PER LINE is required. Please turn in the computer print outs of the C programs, the compiling steps and the results

Explanation / Answer

#include<stdio.h>
#include<conio.h>

void main()
{
   double x[]={2.5,1.5,4.0,7.0,3.5,6.5,8.5,1.0},b,c;
   int i,j;

   clrscr();

   for(i=0;i<8;i++)
   {
       for(j=0;j<=i;j++)
       {
           if(x[j]>x[i])
           {
               c=x[j];
               x[j]=x[i];
               x[i]=c;
           }
       }
   }

   printf(" Ascending Sorted Arrary is :-");

   for(i=0;i<8;i++)
   {
       printf(" %lf",x[i]);
   }

   for(i=0;i<8;i++)
   {
       for(j=0;j<=i;j++)
       {
           if(x[j]<x[i])
           {
               c=x[j];
               x[j]=x[i];
               x[i]=c;
           }
       }
   }

   printf(" Descending Sorted Arrary is :-");

   for(i=0;i<8;i++)
   {
       printf(" %lf",x[i]);
   }

   getch();
}

2.

#include<stdio.h>
#include<conio.h>

void main()
{
   int x[6][6];
   int s=0,i,j,c=1;

   clrscr();

   for(i=0;i<6;i++)
   {
       for(j=0;j<6;j++)
       {
           x[i][j]=c;
           c++;
       }
   }

   for(i=0;i<6;i++)
   {
       s=s+x[i][1];
   }
   printf("Sum of first column=%d",s);
   s=0;
   for(i=0;i<6;i++)
   {
       s=s+x[i][3];
   }
   printf("Sum of third column=%d",s);

   s=0;
   for(i=0;i<6;i++)
   {
       s=s+x[i][4];
   }
   printf("Sum of fourth column=%d",s);

   getch();
}

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