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C Program to Solve Two Sum Using Brute Force (With Algorithm & Output)

 Introduction The Two Sum problem is a popular coding interview question where we must find two indices of an array whose values add up to a given target. This program demonstrates a simple brute-force solution in C using nested loops and dynamic memory allocation. Problem Statement Given an integer array and a target value, return the indices of the two numbers such that they add up to the target. Each input has exactly one solution, and the same element cannot be used twice. The result should return the indices, not the values. If no solution exists, return NULL.  Algorithm / Logic Explanation Start the program. Traverse the array using a loop from index 0 to numsSize - 1 . Inside this loop, use another loop starting from i + 1 to numsSize - 1 . For every pair (i, j) , check if nums[i] + nums[j] == target . If condition becomes true: Allocate memory for 2 integers using malloc() . Store indices i and j . Set returnSize = 2 . Return the result poi...
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C program to find the largest element in an array using simple iteration

Find Largest Element in Array - C Program

🔍 Find Largest Element in an Array (C Program)

#include<stdio.h>
int main( )
{
    int num,a[100];
    printf("Enter the size of the array:\n");
    scanf("%d",&num);
    if(num<=0)
    {
        printf("Invalid array size");
        return 1;
    }
    printf("Enter %d elements into the array:\n", num);
    for(int i=0;i<num;i++)
    {
        scanf("%d",&a[i]);
    }
    int max=a[0];
    for(int i=0;i<num;i++)
    {
        if(a[i]>max)
        {
            max=a[i];
        }
    }
    printf("The largest element in array is %d\n",max);
}

📘 Explanation:

🔹 The program first reads the size and elements of the array.
🔹 It initializes `max` with the first element.
🔹 Then it iterates through all elements and updates `max` whenever a larger value is found.
🔹 Finally, it prints the largest element.

🧪 Sample Output:

Enter the size of the array:
5
Enter 5 elements into the array:
10 45 23 89 34
The largest element in array is 89

🏷️ Keywords:

C program largest element, find max in array, array maximum value, beginner array program, C logic for max element

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