i want correct anwer code

Question

import java.util.*;

public class SockPair {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);

// Read number of socks
int n = sc.nextInt();
int[] ar = new int[n];

// Read sock colors
for (int i=0;i< n;i++) {
ar[i] = sc.nextInt();
}

// Count occurrences
int[] count = new int[101];
for (int i=0;i<n;i++) {
count[ar[i]]++;
}

// Calculate pairs
int answer = 0;
for (int i=0; i<101;i++) {
answer += count[i] / 2;
}

System.out.println("Number of pairs: " + answer);
}
}

Answer 1

Zoyafathima
Your code is correctly counting the pairs of number. What problem are you facing in your code, can you briefly describe your problem?

You may have problem with input, so your input must be like this:-
4
6 5 4 5

Or

4
6
5
4
5

Output:- 1

Answer 2

The code is correct, you just need to enter
manual values.

Input {
4 // inserted that I have four pairs of socks
1 2 1 2 // Colors are represented as numbers }

The program will join them in the vector and read the equal values and divide them into pairs

Color 1-> 2 socks --> 2/2 = 1 pair
Color 2-> 2 socks --> 2/2 = 1 pair

In the end, he adds up the pairs
1 pair color 1 + 1 pair color 2 = 2

Output { Number of pairs: 2 }

Answer 3

Sometimes it can give an error because the Scanner is not importing, but I think it's unlikely to be that :/ maybe it's an input error

Answer 4

Damn bro went straight for the point