Please note, this is a STATIC archive of website www.w3resource.com from 19 Jul 2022, cach3.com does not collect or store any user information, there is no "phishing" involved.
w3resource

C Exercises: Check if a triple is presents in an array of integers or not

C-programming basic algorithm: Exercise-16 with Solution

Write a C program to check if a triple is presents in an array of integers or not. If a value appears three times in a row in an array it is called a triple.

C Code:

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

int main(void){
    int arr_size;
    int array1[] = {1, 1, 2, 2, 1};
    arr_size = sizeof(array1)/sizeof(array1[0]);
    printf("%d",test(array1, arr_size));
    int array2[] = {1, 1, 2, 1, 2, 3};
    arr_size = sizeof(array2)/sizeof(array2[0]);
    printf("\n%d",test(array2, arr_size));
    int array3[] = {1, 1, 1, 2, 2, 2, 1 };
    arr_size = sizeof(array3)/sizeof(array3[0]);
    printf("\n%d",test(array3, arr_size));
    }       
    int test(int nums[], int arr_size)
         {
             for (int i = 0; i < arr_size - 1; i++)
            {
                 if(nums[i] == nums[i + 1] && nums[i + 2] == nums[i])
                     return 1;
            }
           return 0;

        }

Sample Output:

0
0
1

Pictorial Presentation:

C Programming Algorithm: Check if a triple is presents in an array of integers or not

Flowchart:

C Programming Algorithm Flowchart: Check if a triple is presents in an array of integers or not

C Programming Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a C program to count the number of two 5's are next to each other in an array of integers. Also count the situation where the second 5 is actually a 6.
Next: Write a C program to compute the sum of the two given integers. If the sum is in the range 10..20 inclusive return 30.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP