P1001 A+B Problem

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        System.out.println(a+b);
    }
}

P1000 超级玛丽游戏

public class Main {
    public static void main(String[] args) {
        System.out.println("                ********\n" +
                "               ************\n" +
                "               ####....#.\n" +
                "             #..###.....##....\n" +
                "             ###.......######              ###            ###\n" +
                "                ...........               #...#          #...#\n" +
                "               ##*#######                 #.#.#          #.#.#\n" +
                "            ####*******######             #.#.#          #.#.#\n" +
                "           ...#***.****.*###....          #...#          #...#\n" +
                "           ....**********##.....           ###            ###\n" +
                "           ....****    *****....\n" +
                "             ####        ####\n" +
                "           ######        ######\n" +
                "##############################################################\n" +
                "#...#......#.##...#......#.##...#......#.##------------------#\n" +
                "###########################################------------------#\n" +
                "#..#....#....##..#....#....##..#....#....#####################\n" +
                "##########################################    #----------#\n" +
                "#.....#......##.....#......##.....#......#    #----------#\n" +
                "##########################################    #----------#\n" +
                "#.#..#....#..##.#..#....#..##.#..#....#..#    #----------#\n" +
                "##########################################    ############");
    }
}

P5703 【深基2.例5】苹果采购

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        System.out.println(a*b);
    }
}

P5704 【深基2.例6】字母转换

import java.util.Locale;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.nextLine();
        System.out.println(s.toUpperCase(Locale.ROOT));
    }
}

P5705 【深基2.例7】数字反转

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.nextLine();
        System.out.println(new StringBuffer(s).reverse().toString());
    }
}

P5706 【深基2.例8】再分肥宅水

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double t = sc.nextDouble();
        int n = sc.nextInt();
        String s = String.format("%.3f",t/n);
        System.out.println(s);
        System.out.println(n*2);
    }
}

P1425 小鱼的游泳时间

import java.util.Scanner;
public class Main {
    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();
        if(d>=b){
            System.out.println((c-a) + " " + (d-b));
        }else{
            System.out.println((c-a-1) + " " + (d-b+60));
        }
    }
}

P2433 【深基1-2】小学数学 N 合一

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int T = sc.nextInt();
        if (T == 1) {
            System.out.println("I love Luogu!");
        } else if (T == 2) {
            System.out.println((2+4) + " " + (10-2-4));
        } else if (T == 3) {
            System.out.println(3);
            System.out.println(12);
            System.out.println(2);
        } else if (T == 4) {
            System.out.printf("%.3f\n",500.0/3);
        } else if (T == 5) {
            System.out.println((260+220)/(20+12));
        } else if (T == 6) {
            System.out.println(10.8167);
        } else if (T == 7) {
            System.out.println(100+10);
            System.out.println(100+10-20);
            System.out.println(0);
        } else if (T == 8) {
            System.out.println(31.4159);
            System.out.println(78.5398);
            System.out.println(523.599);
        } else if (T == 9) {
            int t9 = 1;
            for (int i = 0; i < 3; i++) {
                t9 = (t9+1)*2;
            }
            System.out.println(t9);
        } else if (T == 10) {
            System.out.println(9);
        } else if (T == 11) {
            System.out.println(33.3333);
        } else if (T == 12) {
            System.out.println('M' - 'A' + 1);
            System.out.println((char)('A' + 17));
        } else if (T == 13) {
            double PI = 3.141593;
            System.out.printf("%.0f\n",Math.pow((PI*4*4*4*4/3+PI*10*10*10*4/3),(double)1/3));
        } else if (T == 14) {
            System.out.println(50);
        }
    }
}

P5708 【深基2.习2】三角形面积

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double a = sc.nextDouble();
        double b = sc.nextDouble();
        double c = sc.nextDouble();
        double p = (a+b+c)/2;
        double s = Math.sqrt(p*(p-a)*(p-b)*(p-c));
        System.out.printf("%.1f",s);
    }
}

P1421 小玉买文具

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        double sum = Double.parseDouble(a+"."+b);
        System.out.println((int)(sum/1.9));
    }
}

P5709 【深基2.习6】Apples Prologue / 苹果和虫子

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int m = sc.nextInt();
        int t = sc.nextInt();
        int s = sc.nextInt();
        if(t!=0 && s/t < m){
            if(s%t == 0){
                System.out.println(m - s/t);
            }else {
                System.out.println(m - s/t -1);
            }
        }else{
            System.out.println(0);
        }
    }
}

P2181 对角线

import java.math.BigInteger;
import java.util.Scanner;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        BigInteger n = sc.nextBigInteger();
        System.out.println(n.multiply(n.subtract(BigInteger.ONE))
        .multiply(n.subtract(BigInteger.valueOf(2)))
        .multiply(n.subtract(BigInteger.valueOf(3)))
        .divide(BigInteger.valueOf(24)));
    }
}

P5707 【深基2.例12】上学迟到

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int s = scanner.nextInt();
        int y = scanner.nextInt();
        Calendar date = Calendar.getInstance();
        date.set(2021, Calendar.MAY, 5, 8, 0, 0);
        date.add(Calendar.MINUTE, -10);
        date.add(Calendar.MINUTE, s % y == 0 ? -(s / y) : -(s / y) - 1);
        SimpleDateFormat format = new SimpleDateFormat("HH:mm");
        System.out.println(format.format(date.getTime()));
    }
}

P3954 [NOIP2017 普及组] 成绩

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();
        System.out.println((int)(a*0.2 + b*0.3 + c*0.5));
    }
}