C++ Exercises: Find the largest element of a given array of integers

Last update on April 12 2025 12:55:41 (UTC/GMT +8 hours)

1. Largest Element in Array

Write a C++ program to find the largest element of a given array of integers.

Visual Presentation:

Sample Solution:

C++ Code :

#include <algorithm>
#include<iostream> // Header file for input/output stream
using namespace std; // Using the standard namespace

int find_largest(int nums[], int n) { // Function definition for finding the largest element in an array
  return *max_element(nums, nums + n); // Return the maximum element in the array using max_element from algorithm library
}

int main() { // Main function where the program execution starts
  int nums[] = { // Declaring and initializing an integer array
    5,
    4,
    9,
    12,
    8
  };
  int n = sizeof(nums) / sizeof(nums[0]); // Determining the number of elements in the array

  cout << "Original array:"; // Output message indicating the original array is being displayed
  for (int i=0; i < n; i++) // Loop to display each element of the array
    cout << nums[i] <<" "; // Output each element of the array

  cout << "\nLargest element of the said array: "<< find_largest(nums, n); // Output message showing the largest element in the array
  return 0; // Return statement indicating successful execution and program termination
}

Sample Output:

Original array:5 4 9 12 8 
Largest element of the said array: 12

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C++ program to determine the largest number in an array using a single loop and conditional statements.
• Write a C++ program that finds the maximum element in an unsorted array by iterating through the array and updating a maximum variable.
• Write a C++ program to compute the largest element in an array using the std::max_element algorithm without explicit loops.
• Write a C++ program that reads an array from input and prints the largest value, ensuring to handle negative numbers correctly.

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