HTML以及CSS相关知识总结（二）

1、金币

https://www.lanqiao.cn/problems/357/learning/


解法：暴力

import java.util.Scanner;
// 1:无需package
// 2: 类名必须Main, 不可修改

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        //在此输入您的代码...
        int k = scan.nextInt();
        int count = 1;
        int sum = 0;
        while(k > 0) {
          for(int i = 0; i < count ; i++) {
            if(k > 0) {
              sum += count;
              k--;
            }
          }
          count++;
        }
        scan.close();
        System.out.println(sum);
    }
}

注意：要在for循环里面判断k是否还大于0，因为数字大了，k减着减着就可能不满足> 0 的条件了

2、天干地支

https://www.lanqiao.cn/problems/1029/learning/

解法：

import java.util.Scanner;

public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt() - 3;
        String[] tiangan = { "", "jia", "yi", "bing", "ding", "wu", "ji", "geng", "xin", "ren", "gui" };
        String[] dizhi = { "", "zi", "chou", "yin", "mao", "chen", "si", "wu", "wei", "shen", "you", "xu", "hai" };
        String str = "";
        // 天干
        if (n % 10 == 0) {
            str += tiangan[tiangan.length - 1];
        } else {
            str += tiangan[n % 10];
        }
        // 地支
        if (n % 12 == 0) {
            str += dizhi[dizhi.length - 1];
        } else {
            str += dizhi[n % 12];
        }
        System.out.println(str);
    }
}