import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class Day1 {
List<Integer> result = new ArrayList<Integer>();
public String largestTimeFromDigits(int[] A) {
List<Integer> arr = new ArrayList<Integer>();
for (int a: A){
arr.add(a);
}
permute(arr,0);
List<Integer> goodOnes = new ArrayList<Integer>();
for (Integer i: result){
if(i % 100 < 60 && i / 100 < 24){
goodOnes.add(i);
}
}
int finalNumber;
if(goodOnes.size() == 0){
return "";
} else {
finalNumber = Collections.max(goodOnes);
}
return "" + String.format("%02d",finalNumber / 100) + ":" + String.format("%02d",finalNumber % 100);
}
void permute(List<Integer> arr, int k){
for(int i = k; i < arr.size(); i++){
java.util.Collections.swap(arr, i, k);
permute(arr, k+1);
java.util.Collections.swap(arr, k, i);
}
if (k == arr.size() -1){
result.add(Integer.parseInt(""+arr.get(0) + arr.get(1) + arr.get(2) + arr.get(3)));
}
}
}
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}