Resize Array

Medium Dynamic Memory Allocation

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Problem Statement

Write a C program to resize an array dynamically and calculate the updated sum of all elements.

Input Format

Line 1: N. Line 2: N elements. Line 3: New size M. Line 4: M-N new elements.

Output Format

Print the total sum after resizing.

Constraints

1 <= N < M <= 1000

Sample Input

Sample Output

Explanation

Resizes array with realloc and computes sum of all M elements.

Starter Code

#include <stdio.h>
#include <stdlib.h>

int main() {
    int n, m;
    if (scanf("%d", &n) == 1) {
        int *arr = (int *)malloc(n * sizeof(int));
        for (int i = 0; i < n; i++) scanf("%d", &arr[i]);
        if (scanf("%d", &m) == 1) {
            // Write your code here
        }
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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