tantangan phpid for student telegram

CheckPairEndSum.java

import java.util.*;

public class CheckPairEndSum {
    public static void main(String args[]) {
        if (args != null) {
            for (String d : args) System.out.println(d);
        }
        
        if (args == null) {
            System.out.println("return false 1");
            return;
        }
        
        if (args.length < 2) {
            System.out.println("return false 2");
            return;
        }
        
        int _sum = Integer.parseInt(args[1]);
        
        if (_sum % 2 != 0) {
            System.out.println("return false 3");
            return;
        }
        
        String[] _arg1 = args[0].split(",");
        List<String> _data = Arrays.asList(_arg1);
        
        List<Integer> _pairs = new ArrayList();
        int _gsum = 0;
        
        for(String s : _data) {
            int cn = -1;
            try {
                cn = Integer.parseInt(s);
            } catch(Exception e) {}
            
            if (Collections.frequency(_data, s) == 2 && cn != -1 && Collections.frequency(_pairs, cn) == 0) {
                _pairs.add(cn);
                _gsum += cn * 2;
            }
        }
        
        if (_pairs.size() < 0) {
            System.out.println("return false 4");
            return;
        }
        
        if (_gsum != _sum) {
            System.out.println("return false 5");
            return;
        }
        
        System.out.println("return true");
    }
}

checkPairEndSum.php

<?php

function checkPairEndSum($arr, $sum) {
	if ($sum % 2 != 0) return;

	if (!is_array($arr)) return;

	$pairs = [];
	$gsum = 0;
	$carr = array_count_values($arr);
	foreach ($carr as $ke => $ca) {
		if ($ca == 2) {
			$pairs[] = $ke;
			$gsum += $ke * 2;
		}
	}

	if (count($pairs) == 0) return;

	if ($gsum !== $sum) return;

	return true;
}

checkPairEndSum.py

while True:
    try:
        data = input("array : ")
        data = [ int(i) for i in data.split() ]
        break
    except ValueError:
        print("invalid array")
 
while True:
    try:
        _sum = input("sum : ")
        _sum = int(_sum)
        break
    except ValueError:
        print("invalid sum")
 
if _sum % 2 != 0:
    print("return : false(1)")
else:
    pairs = []
    acc = 0
    for n in data:
        if data.count(n) == 2:
            if pairs.count(n) == 0:
                pairs.append(n)
                acc += n * 2
 
    if len(pairs) == 0:
        print("return : false(2)")
    else:
        print("return : true" if acc == _sum else "return : false(3)")

while True:
    input("Press Enter to continue...")
    exit()