ZOJ A+B problem C++实现

Posted 2021-12-10 WINNER_QIUQIU

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.

本题与普通求解a+b的和的区别在于需要实现多组a、b的输入，因此需要判断输入的内容是否为空。此处我们利用cin.peek()函数来获取指针指向的当前字符，判断其是否为程序结束符EOF。具体实现代码如下：

#include<iostream>
using namespace std;
int main()
{
    int a,b,c;
    while(cin.peek()!=EOF&&cin>>a>>b)
    {
        c=a+b;
        cout<<c<<endl;
    }
    
    return 0;
}