Write a C code to perform the following tasks: In main: Define an array of SIZE

Question

Write a C code to perform the following tasks: In main: Define an array of SIZE = 7 and initialize them with 3,5,7,9,11,13,15 Call function sum with the array and size, both passed in pointer representations Print each element of the array Print the sum In function sum: Take the parameters in pointer representations, Use for-loop to calculate sum 9.Define two arrays x and f, each of size 10, to pass the array to a function, named sum. In main: define array, pass arrays, print out the array and the results on screen In function sum, take arrays from main and sum the arrays using the formula below: sum = 0.5 size-1 i=1 (f_i + f_i+1)(x_i+1 - x_i) 10.Define two arrays x and f, each of size 10, using call-by-reference (that is, use pointers), to pass the array to a function, named sum. In main: define array, pass arrays, print out the array and the results on screen In function sum, take arrays from main and sum the arrays using the formula below: sum = 0.5 size-1 i=1 (f_i + f_i+1)(x_i+1 -x_i)

Explanation / Answer

Question 8

#include <stdio.h>

int sum (int* l,int n){
   int res = 0;
   for (int i = 0; i < n; i++)
       res += l[i];
   return res;
}

int main(){
   int l[] = {3,5,7,9,11,13,15};
   printf("%d ",sum(l,7));
   return 0;
}


Question 9

#include <stdio.h>

int sum (int x[],int f[],int n){
   double sum = 0.0;
   for (int i = 0; i < n-1; i++)
       sum += (f[i] + f[i+1])*(x[i+1] - x[i]);
   return 0.5*sum;
}

int main(){
   int x[] = {1,2,3,4,5,6,7,8,9,10};
   int f[] = {1,2,3,4,5,6,7,8,9,10};
   printf("%d ",sum(x,f,10));
   return 0;
}

Question 10

#include <stdio.h>

int sum (int* x,int* f,int n){
   double sum = 0.0;
   for (int i = 0; i < n-1; i++)
       sum += (f[i] + f[i+1])*(x[i+1] - x[i]);
   return 0.5*sum;
}

int main(){
   int x[] = {1,2,3,4,5,6,7,8,9,10};
   int f[] = {1,2,3,4,5,6,7,8,9,10};
   printf("%d ",sum(x,f,10));
   return 0;
}

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