Thread: C programming Homework binary,linear search.

Hello,I am new to the forum.i have an assignment and I could do only the half and need help to finish it.Here is the question:

Write a C program which does the following;
You are given two arrays
int array_A[12];
int array_B[8];
Use random number generator to fill the arrays
Display the content of the arrays
Ask the user for a search key and also ask for the searching method
If user choice is L or l, use Linear Search
If user choice is B or b, use Binary Search
Display the index of the search key entered by the user or display the error message if
the search key is not found.
You should have 5 separate functions for
1. Random Number Generator
2. Displaying the arrays
3. Linear Search
4. Bubble Sort
5. Binary Search


And here is my code:

Code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int linears(int array_A[],int array_B[],int key);
int binarys(int array_A[],int array_B[],int key,int low,int high);
int bubles(int int array_A[],int array_B[]);




int main() {
    int array_A[12]={};
    int array_B[8]={};
    int i;
    int key;
    int count1;
    int count2;
    char searchtype;
    srand(time(NULL));
    printf("Array A\n");
    for(i=0;i<12;i++)
    {
        array_A[i]=1+rand()%100;
        printf("%5d",array_A[i]);
    }
    printf("\nArray B\n");
    for(i=0;i<8;i++)
    {
        array_B[i]=1+rand()%100;
        printf("%5d",array_B[i]);
    }
    printf("\nEnter A number to search:\n");
    scanf("%d",&key);
    printf("\nEnter search type:\n");
    scanf(" %c",&searchtype);
    
    switch(searchtype) {
        case 'L':
        case 'l':
        count1=linears(array_A,array_B,key);
        if(count1!=-1)
        printf("Searched key%d located at%d",key,count1+1);
        else{
        printf("Searched key%d is not presented in the array.\n",key);
        }
        case 'B':
        case 'b':
        count2=binarys(array_A,array_B,key,low,high1,high2);
        if(count2!=-1)
        printf("Searched key%d located at%d",key,array_A,count2+1);
        else{
        printf("Searched key%d is not presented in the array.\n",key);
        }
        break;
        
    }
    
    
    return 0;
}
int linears(int array_A[],int array_B[],int key) {
    int i;
    int j;
    for(i=0;i<12;i++)
    {
        if(key==array_A[i])
        return i;
    }
    
    for(j=0;j<8;j++)
    {
        if(key==array_B[j])
        return j;
    }
    return -1;
}