Welcome to collectivesolver - Programming & Software Q&A. A website you can trust. All programs tested and works. Contact: aviboots(AT)netvision.net.il
Bonsai Boy of New York Bonsai Trees and Accessories

BlueHost Web Hosting

Liquid Web Managed Dedicated Server: RAID 1 SSD with 16GB of RAM minimum! 24/7 On-Site Heroic Support! Industry-Leading SLA!

Ecommerce Software - Best Ecommerce Platform Made for You - Free Trial

Ecommerce Software - Best Ecommerce Platform Made for You - Free Trial

getflywheel wordpress hosting


Liquid Web Cloud VPS Hosting

10,224 questions

13,922 answers

573 users

How to find the first repeating element in an array of integers with C

1 Answer

0 votes
#include <stdio.h>

int element_exist(int arr[], int len, int start, int n) { 
    for (int i = start; i <= len; i++) { 
        if (arr[i] == n)
            return 1;
    }
    return 0;
}   

int get_first_repeating_element(int arr[], int len) { 
    
    for (int i = 0; i <= len; i++) { 
        if (element_exist(arr, len, i + 1, arr[i])) 
            return arr[i];
    }
    return -1;
} 
  
int main() 
{ 
    int arr[] = {1, 2, 4, 5, 6, 5, 4, 3, 7}; 
  
    int n = get_first_repeating_element(arr, sizeof(arr) / sizeof(arr[0])); 
    
    if (n != -1) 
        printf("First repeating element is: %i", n); 
    else
        printf("No repeating elements"); 
    
}  




/*
run:

First repeating element is: 4

*/

 




answered May 13 by avibootz
...