P1422題目描述

P1422題目鏈接

P1422題解

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);int num = scanner.nextInt();final int LOW_NUM = 150;final int HIGH_NUM = 400;final double LOW_RATE = 0.4463;final double MIDDLE_RATE = 0.4663;final double HIGH_RATE = 0.5663;double result;if (num <= LOW_NUM) {result = LOW_RATE * num;} else if (num <= HIGH_NUM) {result = MIDDLE_RATE * (num-LOW_NUM) + LOW_RATE * LOW_NUM;} else {result = HIGH_RATE * (num-HIGH_NUM) + MIDDLE_RATE * (HIGH_NUM-LOW_NUM) + LOW_RATE * LOW_NUM;}System.out.printf("%.1f", result);scanner.close();} }

P1085題目描述

P1085題目鏈接

P1085題解

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);int max = 0;int result = 0;for (int i = 1; i <= 7; i++) {int x = scanner.nextInt(), y = scanner.nextInt();int temp = x + y;if (temp > 8 && temp > max) {max = temp;result = i;}}System.out.println(result);scanner.close();} }

P1089題目描述

P1089題目鏈接

P1089題解

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);int mom = 0;int jinjin = 0;int month = 0;for (int i = 1; i <= 12; i++) {int temp = scanner.nextInt();jinjin += 300;jinjin -= temp;if (jinjin < 0) {month = i;break;} else if (jinjin > 100) {mom += jinjin / 100;jinjin %= 100;}}if (month > 0) {System.out.println(-month);} else {jinjin += (int)(mom * 120);System.out.println(jinjin);}scanner.close();} }

P1909題目描述

P1909題目鏈接

P1909題解

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);int studentNum = scanner.nextInt();int result = 0;for (int i = 0; i < 3; i++) {int unitNum = scanner.nextInt(), unitPrice = scanner.nextInt();int num;if (studentNum % unitNum == 0) {num = studentNum / unitNum;} else {num = studentNum / unitNum + 1;}int temp = num * unitPrice;if (i == 0) {result = temp;} else if (temp < result) {result = temp;}}System.out.println(result);scanner.close();} }

總結

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