package ssm;

public class test16 {

	public static void main(String[] args) {
		int money=0;
		for(int i=0;i<=29;i++) {
			money=(int)(Math.pow(2, i));
			System.out.println("第"+(i+1)+"天给我"+money+"分钱");
		}
		
	}

}

package ssm;

public class test16 {

	public static void main(String[] args) {
		int sum=0;
		for(int i=0;i<=29;i++) {
			sum=(int)(sum+Math.pow(2, i));
			System.out.println("第"+(i+1)+"天给我"+sum+"分钱");
		}
		
	}

}

int money = 1;
        int sum = 0;
        for (int i = 1; i <= 30; i++) {
            sum += money;
            money=money<<1 ;
        }
        System.out.println(sum);

6

double sum=0;
        for (int i = 0; i < 30; i++) {
           sum= sum+Math.pow(2,i);
        }
        System.out.println(sum);

import java.util.Scanner;

public class HelloWord2 {

    
	    public static void main(String[] args){
	    	System.out.println("请输入您预期乞讨的天数");
	    	Scanner s=new Scanner(System.in);
	    	int number=s.nextInt();
	    	int day=0;
	    	double money=0.01;
	    	double sum=0;
	    	for(day=1;day<=number;day++){
	    		if(day<=1)
	    			sum=money;
	    		else money*=2;
	    	 sum+=money;
	    	 System.out.println("第"+day+"天"+sum+"当天收入"+money);
	    	}
	    	
	    }

}

10737418.23

public static void math() {
        double money = 0;
        for (int i = 1; i <= 30; i++) {
            double day =0.01 * Math.pow(2,i-1);
            money += day;
        }

        System.out.println((int)money);

    }

public class pooreye {
    public static void main(String[] args) {
        double money = 0.01;
        double sum = 0;
        for (int i = 1; i <= 30; i++) {
            sum += money;
            money *= 2;
        }
        System.out.println(sum);
    }
}

import java.util.Scanner;
public class digui {
	public static double getFow(int n) {
		if(n<=2) {
			return 0.01*n;
		}else {
			return getFow(n-1)*2; 
		}
	}
public static void main(String[] args) {
	System.out.print("乞讨天数：");
	Scanner sc = new Scanner(System.in);
	int s= sc.nextInt();
	double count=0;
	for(int i=1;i<=s;i++) {
		count+=getFow(i);
	}
	System.out.println("当天收入："+getFow(s));
	System.out.println("总收入："+count);
}
}

import java.math.BigDecimal;

public class Money {
    public static void main(String[] args){
        double one = 0.1;
        double sum = 0;
        for (int day = 1;day <= 30;day++){
            double money = one*Math.pow(2,day-1);
            sum +=money;

        }
        String str = new BigDecimal(sum+"").toString();
        System.out.println("一个月后我有" + str + "分钱");
    }
}

package Refactor;

public class NarcissisticNumber {
    public static void main(String[] args) {

        double d = 0.01;
        
        int day =0;
        for (day =1;day<=30;day++){
            double c= d*=2;
            double e=d+c;
            System.out.println(e);
        }
   }
}