C++ Exercises: Check if a given array of integers and length 2, does not contain 15 or 20

Last update on August 13 2025 12:46:35 (UTC/GMT +8 hours)

Check if 15 or 20 Not Present in Array (Length 2)

Write a C++ program to check if an array of integers with length 2 does not contain 15 or 20.

Sample Solution:

C++ Code :

#include <iostream> // Including the input/output stream library

using namespace std; // Using the standard namespace

// Function that checks if neither of the first two elements in the array are equal to 15 or 20
bool test(int nums[]) {
    return nums[0] != 15 && nums[0] != 20 && nums[1] != 15 && nums[1] != 20;
}

// Main function
int main () {
    int nums1[] = { 12, 20 }; // Define an array nums1
    int nums2[] = { 14, 15 }; // Define an array nums2
    int nums3[] = { 11, 21 }; // Define an array nums3

    // Output the result of test function for nums1, nums2, and nums3 arrays
    cout << test(nums1) << endl;
    cout << test(nums2) << endl;
    cout << test(nums3) << endl;    

    return 0; // Return statement indicating successful termination of the program
}

Sample Output:

0
0
1

Visual Presentation:

C++ Basic Algorithm Exercises: Check if a given array of integers and length 2, does not contain 15 or 20.

Flowchart:

For more Practice: Solve these Related Problems:

Write a C++ program to check a 2-element array and return true if neither element is 15 or 20.
Write a C++ program that reads two integers and outputs false if either is 15 or 20, and true if neither is present.
Write a C++ program to determine if a 2-element array does not contain 15 or 20, printing the corresponding boolean.
Write a C++ program that checks whether both elements of a two-integer array differ from 15 and 20, then returns true if so.

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