Binary Search in C

Frail Falcon answered on February 25, 2022 Popularity 10/10 Helpfulness 3/10

answer Binary Search in C

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Binary Search in C

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int bSearch(int arr[], int left, int right, int target) {
    if (right >= left) {
        int mid = left + (right - left) / 2;
 
        if (arr[mid] == target)
            return mid;
 
        if (arr[mid] > target)
            return binarySearch(arr, left, mid - 1, target);
 
        return binarySearch(arr, mid + 1, right, target);
    }
    return -1;
}

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Contributed on Jul 07 2022

Frail Falcon

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-1

#include <stdio.h>
int main()
{
    int n;
    printf("enter limit of array :\n");
    scanf("%d", &n);
    int a[n], i,e;
    printf("enter your element :\n");
    for (i = 0; i < n; i++)
    {
        scanf("%d", &a[i]);
    }
    int j,temp;
    for(i=0;i<n;i++){
        for(j=0;j<n-1;j++){
            if(a[j]>a[j+1]){
                temp=a[j];
                a[j]=a[j+1];
                a[j+1]=temp;
            }
        }
    }
    printf("your sorted arrays is :\n");
    for (i = 0; i < n; i++)
    {
        printf("%d\t", a[i]);
    }
    printf("\n");
    int value;
    printf("enter a value that you want to search:\n");
    scanf("%d", &value);
    int low = 0, high = n - 1, mid;
    while (low <= high)
    {
        mid = (low + high) / 2;
        if (value == a[mid])
        {
           return printf("your element has been match of element no. %d",mid+1);
        }
        else if (value < a[mid])
        {
            high = mid - 1;
        }else{
            low =mid+1;
        }
        low++;
    }
    return printf("sorry! not found..");
}

Popularity 10/10 Helpfulness 4/10 Language c

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Tags: binary-search bi

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Contributed on Oct 14 2022

SURYA KANT

0 Answers Avg Quality 2/10

binary search c

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#include <stddef.h>

int binary_search(int value, const int *arr, size_t length) {
    size_t left = 0;
    size_t right = length - 1;

    while (left <= right) {
        size_t mid = left + (right - left) / 2;

        if (arr[mid] == value) {
            return mid; // Élément trouvé, retourne son indice
        } else if (arr[mid] < value) {
            left = mid + 1; // Élément recherché dans la moitié droite
        } else {
            right = mid - 1; // Élément recherché dans la moitié gauche
        }
    }

    return -1; // Élément non trouvé
}

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Contributed on Jun 23 2023

unel

0 Answers Avg Quality 2/10

c binary search

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// C program to implement recursive Binary Search
#include <stdio.h>
  
// A recursive binary search function. It returns
// location of x in given array arr[l..r] is present,
// otherwise -1
int binarySearch(int arr[], int l, int r, int x)
{
    if (r >= l) {
        int mid = l + (r - l) / 2;
  
        // If the element is present at the middle
        // itself
        if (arr[mid] == x)
            return mid;
  
        // If element is smaller than mid, then
        // it can only be present in left subarray
        if (arr[mid] > x)
            return binarySearch(arr, l, mid - 1, x);
  
        // Else the element can only be present
        // in right subarray
        return binarySearch(arr, mid + 1, r, x);
    }
  
    // We reach here when element is not
    // present in array
    return -1;
}
  
int main(void)
{
    int arr[] = { 2, 3, 4, 10, 40 };
    int n = sizeof(arr) / sizeof(arr[0]);
    int x = 10;
    int result = binarySearch(arr, 0, n - 1, x);
    (result == -1)
        ? printf("Element is not present in array")
        : printf("Element is present at index %d", result);
    return 0;
}

Popularity 10/10 Helpfulness 4/10 Language c

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Contributed on Feb 25 2022

Ren

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Binary Search in C

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