斗地主最大顺子查找

package cn.longxingtx.number;
import java.util.ArrayList;
public class Straight {
private int[] straight_arr;
public int[] getStraight_arr() {
return straight_arr;
}
public void setStraight_arr(int[] straightArr) {
straight_arr = straightArr;
}
private void sort() {
int a;
for(int i = 0; i < straight_arr.length; i++) {
for (int j = i+1; j < straight_arr.length; j++) {
if(straight_arr[i] > straight_arr[j]) {
a = straight_arr[i];
straight_arr[i] = straight_arr[j];
straight_arr[j] = a;
}
}
}
}
public ArrayList<Integer> straightArray(int _num) {
sort();
ArrayList<Integer> list = getStraight(_num);
return list;
}
private ArrayList<Integer> getStraight(int _num) {
ArrayList<Integer> arraylist = new ArrayList<Integer>();
ArrayList<Integer> arraylist2 = new ArrayList<Integer>();
int num = _num;
int k = 0;
int size = 5;
if(num == 1) {
size = 5*num;
} else if(num == 2) {
size = 3*num;
} else if(num == 3) {
size = 2*num;
}
for (int i = 0; i < straight_arr.length; i++) {
if(i == 0) {
arraylist.add(straight_arr[i]);
k ++;
} else {
if(k == num) {
if(straight_arr[i] == straight_arr[i - 1]) {
continue;
}
if(straight_arr[i] != straight_arr[i - 1] + 1) {
if(arraylist.size() >= size && arraylist2.size() < arraylist.size()) {
arraylist2.clear();
arraylist2.addAll(arraylist);
}
arraylist.clear();
}
arraylist.add(straight_arr[i]);
k = 1;
} else {
if(straight_arr[i] != straight_arr[i - 1]) {
for(int m = 0; m < k; m++) {
arraylist.remove(arraylist.size() - 1);
}
if(arraylist.size() >= size && arraylist2.size() < arraylist.size()) {
arraylist2.clear();
arraylist2.addAll(arraylist);
}
arraylist.clear();
k = 0;
}
arraylist.add(straight_arr[i]);
k ++;
}
}
}
return arraylist2;
}
public static void main(String[] args) {
Straight st = new Straight();
int[] array = {1, 2, 5, 3, 4, 3, 2, 2, 8, 9, 5, 6, 12, 13, 6, 8, 9, 4, 5, 7, 2, 7, 9, 11, 13, 5, 6, 7};
st.setStraight_arr(array);
System.out.println(st.straightArray(1));
System.out.println(st.straightArray(2));
System.out.println(st.straightArray(3));
}
}

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