My assignment (due Tuesday night) is to:

Write a C program that:

a) Declare an integer array index and a double array value both with

room for 50 elements;

b) Reads the integer values of n and nzeros from the terminal by

using scanf;

c) Exit with error message if n > 50.

d) In a for loop, read an integer and a double value from the

terminal by using scanf and store the integer in the index array

and the double in the value array sequentially; You should repeat

this operation nzeros times.

e) Print the sparse vector exactly as shown below;

f) Compute and print the index and value of the maximum element of

the vector;

g) Compute and print the index and value of the minimum element of

the vector;

h) Compute and print the Euclidean norm of the vector;

HINT: The Euclidean norm is the standard square root of the sum of

the squares of the entries of a vector.

Use the files hw6.input and hw6.input2 provided to test your program.

The output of your program should like:

.................................................. ......................

% ./a.out < hw6.input

50-dimensional sparse vector with 10 nonzero entries:

2: 3.0000 3: -1.2000 7: 2.8000

8: 3.4000 10: 7.9300 11: -2.6300

20: 8.5600 30: -0.4000 31: 2.3000

39: 3.9000

Maximum element has index 20 = 8.560000

Minimum element has index 11 = -2.630000

Euclidean norm = 13.913138

% ./a.out < hw6.input2

50-dimensional sparse vector with 8 nonzero entries:

2: 3.0000 3: -1.2000 7: 2.8000

8: 3.4000 10: 7.9300 11: -2.6300

20: 8.5600 30: -0.4000

Maximum element has index 20 = 8.560000

Minimum element has index 11 = -2.630000

Euclidean norm = 13.155812

I have everything down to E, but I just do not know where to begin when it comes to the last three. I can imagine it involves if statements, but how they're utilized, I have no idea. Here's what I have so far:

Code:

#include <stdio.h>
#include <math.h>
main ()
{
int i, n, nzeros, index [51], x;
double value [51], y;
printf("Enter value of n: ");
scanf("%d",&n);
if(n>50 && n<0)
{
printf("DOES NOT COMPUTE!\n");
return 0;
}
printf("Enter value of nzeros: ");
scanf("%d",&nzeros);
for(i=0; i<nzeros; i++)
{
printf("Input int: ");
scanf("%d",&x);
printf("Input double: ");
scanf("%lf",&y);
index[i]=x;
value[i]=y;
}
for(i=0; i<nzeros; i++)
{
if((i)%3==0)
{
printf("\n");
}
printf("%d: %f ", index[i], value[i]);
}
}

Can you guys give me any hints about how to complete F, G, and H?