ACM模式常见输入输出专题（Java版）

目录

题号A: A+B(1)

题号B: A+B(2)

题号C: A+B(3)

题号D: A+B4)

题号E: A+B(5)

题号F: A+B(6)

题号G: A+B(7)

题号H: 字符串排序（1）

题号I 字符串排序（2）

题号G: 字符串排序（3）

题目K: 自测本地通过提交为0

题号A: A+B(1)

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

题号B: A+B(2)

import java.util.Scanner;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);int num = sc.nextInt();while(num!=0){int a = sc.nextInt();int b = sc.nextInt();System.out.println(a+b);num--;}}}

题号C: A+B(3)

// 方法1import 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();while(a!=0 && b!=0){System.out.println(a+b);a = sc.nextInt();b = sc.nextInt();}}}//方法2import java.util.Scanner;public class Main{public static void main(String[] args){Scanner in = new Scanner(System.in);while(in.hasNextLine()){int a = in.nextInt();int b = in.nextInt();if(a==0&&b==0){break;}System.out.println(a+b);}}}

题号D: A+B4)

import java.util.Scanner;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);while(sc.hasNextLine()){int num = sc.nextInt();int sum = 0;for(int i = 0;i<num;i++){sum += sc.nextInt();}if(num == 0){break;}System.out.println(sum);}}}

题号E: A+B(5)

import java.util.Scanner;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);int num = sc.nextInt();while(num-->0){int a = sc.nextInt();int sum = 0;for(int i = 0; i < a; i++){sum += sc.nextInt();}System.out.println(sum);}}}

题号F: A+B(6)

import java.util.Scanner;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);while(sc.hasNextInt()){ //或者使用hasNext()int num = sc.nextInt();int sum = 0;while(num-->0){sum += sc.nextInt();}System.out.println(sum);}}}

题号G: A+B(7)

import java.util.Scanner;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);while(sc.hasNextLine()){int sum = 0;String[] arr = sc.nextLine().split(" ");for(String str:arr){sum += Integer.parseInt(str);}System.out.println(sum);}}}

题号H: 字符串排序（1）

import java.util.*;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);int num = sc.nextInt();while(sc.hasNextLine()){ String[] str = sc.nextLine().split(" ");Arrays.sort(str);for(int i = 0;i < str.length-1; i++){System.out.print(str[i] + ' ');} System.out.print(str[str.length-1]);}}}

题号I 字符串排序（2）

//方法1import java.util.*;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);while(sc.hasNextLine()){String[] str = sc.nextLine().split(" ");Arrays.sort(str);print(str);System.out.println();}}public static void print(String[] str){for(int i = 0;i 

题号G: 字符串排序（3）

//方法1import java.util.*;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);while(sc.hasNextLine()){String[] str = sc.nextLine().split(",");Arrays.sort(str);print(str);System.out.println();}}public static void print(String[] str){for(int i = 0;i 

题目K: 自测本地通过提交为0

注意：取值范围是（0,2X10^10），最大值会超过Integer的范围。

import java.util.*;public class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);//注意取值范围，用什么样的容器接数据while(sc.hasNextLong()){Long a = sc.nextLong();Long b = sc.nextLong();System.out.println(a+b);}}}

练习链接：牛客竞赛_ACM/NOI/CSP/CCPC/ICPC算法编程高难度练习赛_牛客竞赛OJ (nowcoder.com)