牛客编程题（四）

//https://www.nowcoder.com/practice/44d2d63103664913bc243d3836b4f341?tpId=107&&tqId=33316&rp=1&ru=/ta/beginner-programmers&qru=/ta/beginner-programmers/question-ranking

27.

import java.util.Scanner;

public class Main0 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		while(sc.hasNext()) {
			String str = sc.next();
			char c = str.charAt(0);
			StringBuilder xx = new StringBuilder();
				if((c>='a'&&c<='z')||c>='A'&&c<='Z') {
					System.out.println("YES");
				}
				else
					System.out.println("NO");
			
			}
			
		}
	}

//https://www.nowcoder.com/practice/45a30e3ef51040ed8a7674984d6d1553?tpId=107&&tqId=33321&rp=1&ru=/ta/beginner-programmers&qru=/ta/beginner-programmers/question-ranking

28.

import java.io.*;
import java.util.Scanner;

public class Main1 {
    public static void main(String[] args)  throws Exception {
        Scanner sc = new Scanner(System.in);
        String s1=sc.nextLine();
        char[] cs=s1.toCharArray();
        int i=0,j=0;
        for(int s=0;s<cs.length;s++){
            if(cs[s]=='A'){
                  i++;
             }else if(cs[s]=='B'){
                  j++;
               }
          }
        if(i>j){
              System.out.println("A");
         }else if(i==j){
              System.out.println("E");
         }else{
              System.out.println("B");
          }
    }
}

//https://www.nowcoder.com/practice/951a61a193d84b049621717bc5f046df?tpId=107&&tqId=33372&rp=1&ru=/ta/beginner-programmers&qru=/ta/beginner-programmers/question-ranking

29.

import java.util.Scanner;

public class Main2 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		for(int i=0;i<10;i++) {
			int xx = sc.nextInt();
			System.out.print(xx+" ");
		}
	}

}

//https://www.nowcoder.com/practice/bb66c27cb7aa48f9ba7d9f88e4068285?tpId=107&tqId=33372&rp=1&ru=%2Fta%2Fbeginner-programmers&qru=%2Fta%2Fbeginner-programmers%2Fquestion-ranking

30.

import java.util.Arrays;
import java.util.Scanner;

public class Main3 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int[] array = new int[10];
		for (int i = 0; i < array.length; i++) {
			array[i] = sc.nextInt();
		}
		for (int i = 0; i < array.length / 2; i++) {
			int temp = array[i];
			array[i] = array[array.length - i - 1];
			array[array.length - i - 1] = temp;

		}
		for (int i = 0; i < array.length; i++) {
			System.out.print(array[i] + " ");

		}
		System.out.println();
	}
}

//https://www.nowcoder.com/practice/3f33889582934a09b4e3ddd3cc976226?tpId=107&&tqId=33374&rp=1&ru=/ta/beginner-programmers&qru=/ta/beginner-programmers/question-ranking

31.

import java.util.Scanner;

public class Main4 {
	public static void main(String[] args) {
		int positive = 0;
		int negative = 0;
		Scanner sc = new Scanner(System.in);
		for(int i=0;i<10;i++) {
			int xx = sc.nextInt();
			if(xx>0) {
				positive+=1;
			}
			if(xx<0) {
				negative+=1;
			}
		}
		System.out.println("positive:"+positive);
		System.out.println("negative:"+negative);
	}

}

//https://www.nowcoder.com/practice/799daf76369c4fb1a2e2d56f885225ae?tpId=107&tags=&title=&diffculty=0&judgeStatus=0&rp=1

32.

import java.util.Scanner;

public class Main5 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String str1 = sc.next();
		String str2 = sc.next();
		String str = "admin";
		if(str1.equals(str2)&&str1.equals(str)) {
			System.out.println("Login Success!");
		}
		else {
			System.out.println("Login Fail!");
		}
	}

}

//https://www.nowcoder.com/practice/9df4b80fc3ab475288e5c26972440e1b?tpId=107&tags=&title=&diffculty=0&judgeStatus=0&rp=1

33.

import java.util.Scanner;

public class Main6 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
			int a = sc.nextInt();
			int b = sc.nextInt();
			int c = sc.nextInt();
			int d = sc.nextInt();
			System.out.println((a+b-c)*d);
		
		
	}

}

//https://www.nowcoder.com/practice/a4f527b043c04551bf4b80b4275a53bd?tpId=107&tags=&title=&diffculty=0&judgeStatus=0&rp=1

34.

import java.util.Scanner;

public class Main7 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		while(sc.hasNext()) {
			int number = sc.nextInt();
			if(number%5==0) {
				System.out.println("YES");
			}
			else {
				System.out.println("NO");
			}
		}
	}

}