Write a Modular C Programming code to solve Repeating Element, Given an array of integers find the first repeating element
Given an array of integers find the first repeating element.
Input Format
First Line contains the ‘N’ number of array elements, followed by ‘N’ array elements
Constraints
N>0 and N<=10^4 0<=a[i]<=10^9
Output Format
Output the first repeating element
Sample Input 0
7
10 5 3 4 3 5 6
Sample Output 0
5
Explanation 0
Even though 3 is repeating first, 5 comes before 3.
Sample Input 1
-5
Sample Output 1
Invalid
Sample Input 2
5
1 2 3 4 5
Sample Output 2
No repeating elementRefer : C Programming HackerRank all solutions for Loops | Arrays | strings
CODE:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
void read(int a[30],int n)
{
int i;
for(i=0;i<n;i++)
{
scanf("%d",&a[i]);
}
}
void repaeting(int a[30],int n)
{
int i,j,copy=0,st=0;
for(i=0;i<n;i++)
{
copy=a[i];
for(j=i+1;j<n;j++)
{
if(copy==a[j])
{
printf("%d",copy);
exit(0);
}
else st=1;
}
}
if(st==1)
{
printf("No repeating element\n");
}
}
int main()
{ int a[30],n;
scanf("%d",&n);
if(n>0)
{
read(a,n);
repaeting(a,n);
}
else
printf("Invalid\n");
return 0;
}
OUTPUT
Congratulations, you passed the sample test case. Click the Submit Code button to run your code against all the test cases. Input (stdin) 7 10 5 3 4 3 5 6 Your Output (stdout) 5 Expected Output 5
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