No15. 康拓全排

import java.util.Arrays;

public class CantoPermutation {
    static final int[] X = new int[]{1,1,2,6,24,120,720,5040};

    public static void main(String[] args) {
        String[] data = new String[]{"+","-","*","/"};
        for(int i=0;i

 

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