第一個zju的acm程序（ID：1001）

ZOJ Problem Set - 1001

A + B Problem

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Time Limit: 2 Seconds      Memory Limit: 65536 KB

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Calculate a + b

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

Sample Output

6

Hint

Use + operator

Sample Program Here

Q:Where is the input and the output?
A:Your program shall read input from stdin('Standard Input') and write output to stdout('Standard Output').For example,you can use 'scanf' in C or 'cin' in C++ to read from stdin,and use 'printf' in C or 'cout' in C++ to write to stdout.
User programs are not allowed to open and read from/write to files, you will get a "Runtime Error" if you try to do so.
Here is a sample solution for problem 1001 using C++:

#include <iostream>
using namespace std;

int main()
{
    int a,b;
    while(cin >> a >> b)
        cout << a+b << endl;
}

Here is a sample solution for problem 1001 using C:

#include <stdio.h>

int main()
{
    int a,b;
    while(scanf("%d %d",&a, &b) != EOF)
        printf("%d\n",a+b);
    return 0;
}

Here is a sample solution for problem 1001 using PASCAL(FPC):

program p1001(Input,Output); 
var 
  a,b:Integer; 
begin 
   while not eof(Input) do 
     begin 
       Readln(a,b); 
       Writeln(a+b); 
     end; 
end.

Here is a sample solution for problem 1001 using Java:

import java.util.Scanner;

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

Here is a sample solution for problem 1001 using Python:

import sys
for line in sys.stdin:
    a = line.split()
    print int(a[0]) + int(a[1])

Here is a sample solution for problem 1001 using PHP:

<?php
while (fscanf(STDIN, "%d%d", $a, $b) == 2) {
    print ($a + $b) . "\n";
}