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

Why doesn't a+++++b work?

printf("%d",a+++++b); is interpreted as (a++)++ + b according to the Maximal Munch Rule!.

++ (postfix) doesn't evaluate to an lvalue but it requires its operand to be an lvalue.

! 6.4/4 says the next preprocessing token is the longest sequence of characters that could constitute a preprocessing token"

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