﻿ C++ Exercises: Check a given array of integers and return true if the given array contains two 5's next to each other, or two 5 separated by one element - w3resource

# C++ Exercises: Check a given array of integers and return true if the given array contains two 5's next to each other, or two 5 separated by one element

## C++ Basic Algorithm: Exercise-109 with Solution

Write a C++ program to check a given array of integers and return true if the given array contains two 5's next to each other, or two 5 separated by one element.

Sample Solution:

C++ Code :

``````#include <iostream>
using namespace std;

static bool test(int nums[], int arr_length)
{
int len = arr_length;

for (int i = 0; i < len - 1; i++)
{
if (nums[i] ==5 && nums[i + 1] == 5) return true;
if (i + 2 < len && nums[i] == 5 && nums[i + 2] == 5) return true;
}
return false;
}

int main()
{
int nums1[] = {5, 5, 1, 5, 5};
int arr_length = sizeof(nums1) / sizeof(nums1[0]);
cout << test(nums1, arr_length) << endl;
int nums2[] = {1, 2, 3, 4};
arr_length = sizeof(nums2) / sizeof(nums2[0]);
cout << test(nums2, arr_length) << endl;
int nums3[] = {3, 3, 5, 5, 5, 5};
arr_length = sizeof(nums3) / sizeof(nums3[0]);
cout << test(nums3, arr_length) << endl;
int nums4[] = {1, 5, 5, 7, 8, 10};
arr_length = sizeof(nums4) / sizeof(nums4[0]);
cout << test(nums4, arr_length) << endl;
return 0;
}
``````

Sample Output:

```1
0
1
1
```

Pictorial Presentation:

Flowchart:

C++ Code Editor:

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