1089-1096：A+B for Input-Output Practice

A+B for Input-Output Practice (I)

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

提示Time Limit Exceeded的代码：

//ACM 1089：A+B for Input-Output Practice (I)
#include <iostream>
using namespace std;

int main()
{
	int i,j;

	do{
		cin >> i;
		cin >> j;
		cout << (i + j) << endl;
	}while (true);

	return 0;
}

正确运行的代码：

//ACM 1089：A+B for Input-Output Practice (I)
#include <iostream>
using namespace std;

int main()
{
	int i,j;

	while (cin >> i >> j)	
		cout << (i + j) << endl;

	return 0;
}

A+B for Input-Output Practice (II)

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 2 1 5 10 20

Sample Output 6 30

代码如下：

//acm 1090:A+B for Input-Output Practice (II)
#include <iostream>
using namespace std;

int main()
{
	int i,j,T;
	cin >> T;
	while (T-- && cin >> i >> j)	
		cout << (i + j) << endl;

	return 0;
}

A+B for Input-Output Practice (III)

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 1 5 10 20 0 0

Sample Output 6 30

代码如下：

//acm 1091:A+B for Input-Output Practice (III)
#include <iostream>
using namespace std;

int main()
{
	int i,j;
	while ( cin >> i >> j && (i || j )!=0)
		cout << (i + j) << endl;

	return 0;
}

A+B for Input-Output Practice (IV)

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

代码如下：

//acm 1092:A+B for Input-Output Practice (IV)
#include <iostream>
using namespace std;

int main()
{
	int N;
	while(cin >> N && N )
	{
		int sum = 0;
		while (N--)
		{
			int i;
			cin >> i;
			sum += i;
		}
		cout << sum << endl;
	}

	return 0;
}

A+B for Input-Output Practice (V)

Problem Description Your task is to calculate the sum of some integers.

Input 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.

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

Sample Output 10 15

代码如下：

//acm 1093:A+B for Input-Output Practice (V)
#include <iostream>
using namespace std;

int main()
{
	int T;
	cin >> T ;
	while(T--)
	{
		int N,sum = 0;
		cin >> N;
		while (N--)
		{
			int i;
			cin >> i;
			sum += i;
		}
		cout << sum << endl;
	}

	return 0;
}

A+B for Input-Output Practice (VI)

Problem Description Your task is to calculate the sum of some integers.

Input 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.

Output For each test case you should output the sum of N integers 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

Sample Output 10 15

代码如下：

//acm 1094:A+B for Input-Output Practice (VI)
#include <iostream>
using namespace std;

int main()
{
	int N,i;
	while(cin >> N)
	{
		int sum = 0;
		while (N--)
		{
			cin >> i;
			sum += i;
		}
		cout << sum << endl;
	}

return 0;
}

A+B for Input-Output Practice (VII)

Problem Description Your task is to 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, and followed by a blank line.

Sample Input 1 5 10 20

Sample Output 6 30

代码如下：

//acm 1095:A+B for Input-Output Practice (VII)
#include <iostream>
using namespace std;

int main()
{
	int i,j;

	while(cin >> i >> j)
		cout << (i + j) << endl << endl;

return 0;
}

A+B for Input-Output Practice (VIII )

Problem Description Your task is to calculate the sum of some integers.

Input 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.

Output For each group of input integers you should output their sum in one line, and you must note that there is a blank line between outputs.

Sample Input 3 4 1 2 3 4 5 1 2 3 4 5 3 1 2 3

Sample Output 10 15 6

代码如下：

//acm 1096:A+B for Input-Output Practice (VIII)
#include <iostream>
using namespace std;

int main()
{
	int N;
	cin >> N;
	while (N--)
	{
		int M,sum = 0;
		cin >> M;
		while (M--)
		{
			int i;
			cin >> i;
			sum += i;
		}
		cout << sum << endl;
		if (N != 0)cout << endl;//没有此行运行时会出现错误：Presentation Error
	}

return 0;
}

至此，有关 A+B for Input-Output Practice 的问题均已得到解决。