AcmStep Chapter One Section One—A+B problem series

A+B for Input-Output Practice (I)

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.

#include <iostream>
using namespace std;
int main()
{
	int a,b;
	while (cin>>a>>b)
	{
		cout<<a+b<<endl;
	}
	return 0;
}

A+B for Input-Output Practice (II)

Your task is to Calculate n case of a + b.

#include <iostream>
using namespace std;
int main()
{
	int n;
	cin>>n;
	while (n--)
	{
		int a,b;
		cin>>a>>b;
		cout<<a+b<<endl;
	}
	return 0;
}

A+B for Input-Output Practice (III)

Your task is to Calculate a + b.A test case containing 0 0 terminates the input and this test case is not to be processed.

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

A+B for Input-Output Practice (IV)

Your task is to Calculate the sum of some integers .A test case starting with 0 terminates the input and this test case is not to be processed.

#include <iostream>
using namespace std;
int main()
{
	int n;
	cin>>n;
	while(n)
	{
		int sum=0;
		while (n--)
		{
			int k;
			cin>>k;
			sum+=k;
		}
		cout<<sum<<endl;
		cin>>n;
	}
	return 0;
}

A+B for Input-Output Practice (V)

Your task is to calculate the sum of some integers. The first line include a num n indecating there are n test cases.

#include <iostream>
using namespace std;
int main()
{
	int n;
	cin>>n;
	while(n--)
	{
		int sum=0,m;
		cin>>m;
		while (m--)
		{
			int k;
			cin>>k;
			sum+=k;
		}
		cout<<sum<<endl;
	}
	return 0;
}

A+B for Input-Output Practice (VI)

Your task is to calculate the sum of some integers. Input contains multiple test cases, and one case one line. Each case starts with an integer N, and then N integers follow in the same line. 

#include <iostream>
using namespace std;
int main()
{
	int n;
	while(cin>>n)
	{
		int sum=0;
		while (n--)
		{
			int k;
			cin>>k;
			sum+=k;
		}
		cout<<sum<<endl;
	}
	return 0;
}

A+B for Input-Output Practice (VII)

Your task is to Calculate a + b. The input will consist of a series of pairs of integers a and b, separated by a space, one pair of integers per line. 

#include <iostream>
using namespace std;
int main()
{
	int a,b;
	while (cin>>a>>b)
	{
		cout<<a+b<<endl<<endl;
	}
	return 0;
}

A+B for Input-Output Practice (VIII)

Your task is to calculate the sum of some integers. Input contains an integer N in the first line, and then N lines follow. Each line starts with a integer M, and then M integers follow in the same line. 

#include <iostream>
using namespace std;
int main()
{
	int n;
	cin>>n;
	while (n--)
	{
		int m,sum=0;
		cin>>m;
		while (m--)
		{
			int k;
			cin>>k;
			sum+=k;
		}
		cout<<sum<<endl;
		if (n) cout<<endl;
	}
	return 0;
}

acm step 的第一节明显是一门基础课，就不多说。之所以贴出来，只是为了可以完整的记录我的acm step之路罢了。

这或者只是一个幼稚的起步，但希望路过的大牛可以指点一二，从各方面都可以，包括编程风格等。