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C Exercises: Check two given arrays of integers of length 1 or more and return true if they have the same first element or they have the same last element

C-programming basic algorithm: Exercise-35 with Solution

Write a C program to check two given arrays of integers of length 1 or more and return true if they have the same first element or they have the same last element.

C Code:

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

int main(void){
    
    int array11[] = {10, 20, 40, 50};
    int arr_size11 = sizeof(array11)/sizeof(array11[0]);
    int array12[] = {10, 20, 40, 50};
    int arr_size12 = sizeof(array12)/sizeof(array12[0]);
    printf("%d",test(array11,array12,arr_size11,arr_size12));
    
    int array21[] = {10, 20, 40, 50};
    int arr_size21 = sizeof(array21)/sizeof(array21[0]);
    int array22[] = {11, 20, 40, 51};
    int arr_size22 = sizeof(array22)/sizeof(array22[0]);
    printf("\n%d",test(array21,array22,arr_size21,arr_size22));
    
    }       
    
    int test(int nums1[], int nums2[], int arr_size1, int arr_size2)
         {
            return nums1[0] == nums2[0] || nums1[arr_size1 - 1] == nums2[arr_size2 - 1];
        }

Sample Output:

1
0

Pictorial Presentation:

C Programming Algorithm: Check two given arrays of integers of length 1 or more and return true if they have the same first element or they have the same last element

Flowchart:

C Programming Algorithm Flowchart: Check two given arrays of integers of length 1 or more and return true if they have the same first element or they have the same last element

C Programming Code Editor:

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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