HDU1089-1092A+B for Input-Output Practice（入门题C，Java两个版本）

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本文解析了四道ACM编程练习题，包括输入输出实践的一系列题目，每道题都提供了C语言和Java的实现代码示例。题目旨在帮助初学者熟悉基本的输入输出操作及简单的数学运算。

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1089 A+B for Input-Output Practice (I)

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)

Total Submission(s): 113308 Accepted Submission(s): 61772

Problem Description

Your task is to Calculate a + b.
Too easy?! Of course! I specially designed the problem for acm beginners.
You must have found that some problems have the same titles with this one, yes, all these problems were designed for the same aim.

Input

The input will consist of a series of pairs of integers a and b, separated by a space, one pair of integers per line.

Output

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.

Sample Input

  
   1 5
10 20

Sample Output

  
   6
30

Author

lcy

原题链接： http://acm.hdu.edu.cn/showproblem.php?pid=1089

C语言AC代码：

#include <stdio.h>
int main()
{
    int a,b;
    while(scanf("%d %d",&a,&b)!=EOF)
    {
        printf("%d\n",a+b);
    }
    return 0;
}

Java AC代码：

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);
        }
    }

}

1090 A+B for Input-Output Practice (II)

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)

Total Submission(s): 85260 Accepted Submission(s): 54785

Problem Description

Your task is to Calculate a + b.

Input

Input contains an integer N in the first line, and then N lines follow. Each line consists of a pair of integers a and b, separated by a space, one pair of integers per line.

Output

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.

Sample Input

Sample Output

   
    6
30

Author

lcy

原题链接： http://acm.hdu.edu.cn/showproblem.php?pid=1090

C语言AC代码

#include <stdio.h>
int main()
{
    int n,a,b;
    scanf("%d",&n);
    while (n--)
    {
        scanf("%d %d",&a,&b);
        printf("%d\n",a+b);
    }

    return 0;
}

Java AC代码：

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		while(n-->0){
			int a = sc.nextInt();
			int b = sc.nextInt();
			System.out.println(a+b);
		}
	}

}

1091 A+B for Input-Output Practice (III)

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)

Total Submission(s): 95396 Accepted Submission(s): 50079

Problem Description

Your task is to Calculate a + b.

Input

Input contains multiple test cases. Each test case contains a pair of integers a and b, one pair of integers per line. A test case containing 0 0 terminates the input and this test case is not to be processed.

Output

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.

Sample Input

Sample Output

   
    6
30

Author

lcy

原题链接： http://acm.hdu.edu.cn/showproblem.php?pid=1091

C语言AC代码：

#include <stdio.h>
int main()
{
    int a,b;
    while(scanf("%d %d",&a,&b)!=EOF)
    {
        if (a==0&&b==0) break;
        printf("%d\n",a+b);
    }
    return 0;
}

Java AC代码：

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();
			if(a==0&&b==0) break;
			System.out.println(a+b);
		}

	}

}

1092 A+B for Input-Output Practice (IV)

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)

Total Submission(s): 87444 Accepted Submission(s): 46364

Problem Description

Your task is to Calculate the sum of some integers.

Input

Input contains multiple test cases. Each test case contains a integer N, and then N integers follow in the same line. A test case starting with 0 terminates the input and this test case is not to be processed.

Output

For each group of input integers you should output their sum in one line, and with one line of output for each line in input.

Sample Input

    
     4 1 2 3 4
5 1 2 3 4 5
0

Sample Output

    
     10
15

Author

lcy

原题链接： http://acm.hdu.edu.cn/showproblem.php?pid=1092

C语言AC代码：

#include <stdio.h>
int main()
{
    int n,m,sum;
    while(scanf("%d",&n)!=EOF&&n)
    {
        sum=0;
        while(n--)
        {
            scanf("%d",&m);
            sum+=m;
        }
        printf("%d\n",sum);
    }
    return 0;
}

Java AC代码：

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		while(sc.hasNext()){
			int n = sc.nextInt();
			if(n == 0 ){
				break;
			}
			int sum = 0;
			while(n-->0){
				int x = sc.nextInt();
				sum += x;
			}
			System.out.println(sum);
		}
	}

}