2018.12-1 小明上学

import java.util.Scanner;

public class text01_RedLight {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int r = scanner.nextInt();
        int y = scanner.nextInt();
        int g = scanner.nextInt();

        int n = scanner.nextInt();
        int result = 0;
        for (int i = 0;i < n;i++){
            int k = scanner.nextInt();
            int t = scanner.nextInt();
            if (k == 0 || k == 1){
                result += t;
            } else if (k == 2) {
                result += t;
                result += r;
            }
        }
        System.out.println(result);
        scanner.close();
    }
}

2018.12-2 小明放学

import java.util.Scanner;

public class text02_RedLight {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int r = scanner.nextInt();
        int y = scanner.nextInt();
        int g = scanner.nextInt();
        int x = r+y+g;
        long result = 0;

        int n = scanner.nextInt();
        for (int i = 0;i < n;i++){
            int k = scanner.nextInt();
            int t = scanner.nextInt();
            long temp = 0;

            if (k == 0){
                result += t;
            }else {
                switch (k){
                    case 1:
                        temp = (result + x - t)% x;
                        break;
                    case 2:
                        temp = (result + y + g -t)% x;
                        break;
                    case 3:
                        temp = (result + g - t)% x;
                        break;
                }
                if (temp > g){result = result + x - temp;}
            }
        }
        System.out.println(result);
        scanner.close();
    }
}