Question

In C language

Write a program that includes a function search() that finds the index of the first element of an input array that contains the value specified. n is the size of the array. If no element of the array contains the value, then the function should return -1. The program takes an int array, the number of elements in the array, and the value that it searches for. The main function takes input, calls the search()function, and displays the output. Name program part1.c

int search(int a[], int n, int value);

Example 1:

Enter length of array: 4

Enter elements of array: 8 2 3 9

Enter the value for searching: 2

Output: 1

Example 2:

Enter the length of the array: 6

Enter the elements of the array: 4 6 1 0 2 9

Enter the value for searching: 5

Output: -1

2. Modify the part 1 program so that it deletes all instances of the value from the array. As part of the solution, write and call the function delete() with the following prototype. n is the size of the array. The function returns the new size of the array after deletion (The array after deletion will be the same size as before but the actual elements are the elements from index 0 to new_size-1). In writing function delete(), you may include calls to function search(). The main function takes input, calls the delete()function, and displays the output. Name your program part2.c.

int delete(int a[], int n, int value);

Example 1:

Enter the length of the array: 6

Enter the elements of the array: 4 3 1 0 3 9

Enter the value for deleting: 3

Output array: 4 1 0 9

Answer 1

Solution:

Part1.c code Screenshot:

#include<stdio.h> int main() { int n, i; printf("Enter the length of array : "); scanf("%d",&n); int arr[n]; printf("Enter the elements of array : "); for(i = ;i<n;i++) { scanf("%d",&arr[i]); int value; printf("Enter the value for searching : "); scanf("%d", &value); int result = search(arr, n, value); // if element was not found if(result == -1){ printf("Output: %d", result); // if Element was found else{ printf("Output: %d", result); return 0; } int search(int arr[], int n, int x){ int i, count = 0, index; for(i = 0;i<n;i++){ if(arr[i]==x) { index = i; count++; break; if(count == 0) { return -1; else{ return index;

Part1.c - Output Screenshot1

C:\Program Files (x86)\Dev-Cpp ConsolePauser.exe Enter the length of array : 4 Enter the elements of array : 4 2 8 9 Enter the value for searching : 2 Output: 1

Part1.c - Output Screenshot2

- 0 x C:\Program Files (x86)\Dev-Cpp ConsolePauser.exe Enter the length of array : 6 Enter the elements of array : 4 6 1 0 2 9 Enter the value for searching : 5 Output: -1

Part2.c code Screenshot:

#include<stdio.h> int main() { int n, i; printf("Enter the length of array: "); scanf("%d",&n); int arr[n]; printf("Enter the elements of array : "); for(i = ; i < n;i++){ scanf("%d",&arr[i]); int value; printf("Enter the value for deleting : "); scanf("%d", &value); int result = delete (arr, n, value); if(result == 0){ printf("Element not found"); else{ printf("Output array: "); for(i=0;i<n-result;i++) { printf("%d ", arr[i]); return 0; } int delete(int arr[], int n, int x){ int i, j, count = 0; for(i=0;i<n;i++) { if(arr[i]==x){ count++; for(i=0;i<n;i++){ if(arr[i]==x){ for(j = i;j<n; j++){ arr[j] = arr[j+1]; delete (arr, n, x); return count;

Part2.c Output Screenshot:

- O X C:\Program Files (x86)\Dev-Cpp\ConsolePauser.exe Enter the length of array : 6 Enter the elements of array : 4 3 10 39 Enter the value for deleting : 3 Output array: 4 1 09

Part1.c Code in Text Format:

#include<stdio.h>
int main(){
        int n, i;
        printf("Enter the length of array : ");
        scanf("%d",&n);
        
        int arr[n];
        printf("Enter the elements of array : ");
        for(i = 0;i < n;i++){
                scanf("%d",&arr[i]);
        }
        
        
        int value;
        printf("Enter the value for searching : ");
        scanf("%d",&value);
        
        
        int result = search(arr,n,value);
        
        // if element was not found
        if(result == -1){
                printf("Output: %d", result);
        }
        // if Element was found
        else{
                printf("Output: %d",result);
        }
        return 0;
}

int search(int arr[],int n, int x){
        int i, count = 0, index;
        for(i = 0;i<n;i++){
                if(arr[i]==x){
                        index = i;
                        count++;
                        break;
                }
        }
        if(count == 0){
                return -1;
        }
        else{
                return 1;
        }
}

Part2.c Code in Text format:

#include<stdio.h>
int main(){
        int n, i;
        printf("Enter the length of array : ");
        scanf("%d",&n);
        
        int arr[n];
        printf("Enter the elements of array : ");
        for(i = 0;i < n;i++){
                scanf("%d",&arr[i]);
        }
        
        int value;
        printf("Enter the value for deleting : ");
        scanf("%d",&value);
        
        int result = delete(arr,n,value);
        if(result == 0){
                printf("Element not found");
        }
        else{
                printf("Output array: ");
                for(i=0;i<n-result;i++){
                        printf("%d ",arr[i]);
                }
        }
        return 0;
}
int delete(int arr[],int n, int x){
        
        int i, j, count = 0;
        for(i=0;i<n;i++){
                if(arr[i]==x){
                        count++;
                }
        }
        
        for(i=0;i<n;i++){
                if(arr[i]==x){
                        for(j = i;j<n;j++){
                                arr[j] = arr[j+1];
                        }
                        delete(arr, n, x);      
                }
        }
        return count;
}