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C++ Program to Perform Linear Search on a Vector

  C++ Program to Perform Linear Search on a Vector Introduction In this C++ program, we will learn how to perform a Linear Search on a vector. The program first takes the size of the vector and its elements as input. Then it asks the user for the element to search. If the element is found, it displays the index where it is located. Otherwise, it displays a message indicating that the element is not found. C++ Program #include<bits/stdc++.h> using namespace std; int main() { int num, search, found = 0; cout << "Enter the size of the vector:" << endl; cin >> num; vector<int> v(num); cout << "Enter " << num << " elements in vector:" << endl; for(int i = 0; i < num; i++) { cin >> v[i]; } cout << "Enter element that you want to search:" << endl; cin >> search; for(int i = 0; i < num; i++) { ...
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C program to find the largest element in an array using bubble sort

Largest Element in Array - C Program

🔹 Find Largest Element in Array (C Program)

#include <stdio.h>

void largestElement(int a[], int num)
{
    // Bubble sort in ascending order
    for(int i = 0; i < num - 1; i++)
    {
        for(int j = 0; j < num - i - 1; j++)
        {
            if(a[j] > a[j + 1])
            {
                int temp = a[j];
                a[j] = a[j + 1];
                a[j + 1] = temp;
            }
        }
    }

    // After sorting, the largest element is at index num - 1
    printf("Largest element in the array: %d\n", a[num - 1]);
}

int main()
{
    int num;
    printf("Enter the size of the array:\n");
    scanf("%d", &num);

    if(num < 1)
    {
        printf("Invalid! Need at least 1 number to find the largest element.\n");
        return 1;
    }

    int a[num];
    printf("Enter %d elements:\n", num);
    for(int i = 0; i < num; i++)
    {
        scanf("%d", &a[i]);
    }

    largestElement(a, num);
    return 0;
}

📘 Explanation:

  • Reads the array size and elements from the user.
  • Sorts the array using Bubble Sort in ascending order.
  • The largest element will be at the last index (num - 1) after sorting.
  • If size is less than 1, it gives an error message.

🧪 Sample Output:

Enter the size of the array:
5
Enter 5 elements:
10 45 3 89 27
Largest element in the array: 89

🏷️ Keywords:

largest number in array, C program for max element, bubble sort, array processing in C, beginner C logic, find max in array
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