C# ＞ 牛客OJ在线编程常见输入输出练习场

牛客OJ在线编程常见输入输出练习场

https://ac.nowcoder.com/acm/contest/5647

要点

using System; // Console在这个命名空间
public class Program{
    public static void Main(){// 无参静态函数
		string line = Console.ReadLine(); // 读入一行，用之前判断是否为 null
		string[] tokens = line.Split(); // 默认按空格分割，也可以按带参数','按逗号分割
		int sum = 0;
        foreach(var t in tokens){
            sum += int.Parse(t); // 将字符串转为目标类型int。目标类型.Parse(s)
        }
		Array.Sort(tokens); // 对字符串数组排序
		string output = string.Join(' ', tokens); // 用空格连接字符串数组
		Console.WriteLine(output); // 输出一行
	}
}

A A+B(1)

using System;

public class Program{
    public static void Main(){
        string line = Console.ReadLine();
        while(line != null){
            string[] tokens = line.Split();
            int a = int.Parse(tokens[0]), b = int.Parse(tokens[1]);
            Console.WriteLine((a+b).ToString());
            line = Console.ReadLine();
        }
    }
}

B A+B(2)

using System;

public class Program{
    public static void Main(){
        int t = int.Parse(Console.ReadLine());
        for(int i=0;i<t;i++){
            string line = Console.ReadLine();
            string[] tokens = line.Split();
            int a = int.Parse(tokens[0]), b = int.Parse(tokens[1]);
            Console.WriteLine(a+b);
        }
    }
}

C A+B(3)

using System;

public class Program{
    public static void Main(){
        string line = Console.ReadLine();
        while(line != null){
            string[] tokens = line.Split();
            int a = int.Parse(tokens[0]), b = int.Parse(tokens[1]);
            if(a == 0 && b == 0){
                break;
            }
            Console.WriteLine(a+b);
            line = Console.ReadLine();
        }
    }
}

D A+B(4)

using System;

public class Program{
    public static void Main(){
        string line = Console.ReadLine();
        while(line != null){
            string[] tokens = line.Split();
            int n = int.Parse(tokens[0]);
            if(n == 0){
                break;
            }
            int sum = 0;
            for(int i = 1;i<=n;i++){
                sum += int.Parse(tokens[i]);
            }
            Console.WriteLine(sum);
            line = Console.ReadLine();
        }
    }
}

E A+B(5)

using System;

public class Program{
    public static void Main(){
        var t = int.Parse(Console.ReadLine());
        for(int i = 0;i < t; i++){
            var line = Console.ReadLine();
            var tokens = line.Split();
            int sum = 0;
            for(int j = 1; j<tokens.Length; j++){
                sum += int.Parse(tokens[j]);
            }
            Console.WriteLine(sum);
        }
    }
}

F A+B(6)

using System;

public class Program{
    public static void Main(){
        var line = Console.ReadLine();
        while(line != null){
            var tokens = line.Split();
            int sum = 0;
            for(int i = 1; i<tokens.Length; i++){
                sum += int.Parse(tokens[i]);
            }
            Console.WriteLine(sum);
            line = Console.ReadLine();
        }
    }
}

G A+B(7)

using System;

public class Program{
    public static void Main(){
        var line = Console.ReadLine();
        while(line != null){
            var tokens = line.Split();
            int sum = 0;
            foreach(var t in tokens){
                sum += int.Parse(t);
            }
            Console.WriteLine(sum);
            line = Console.ReadLine();
        }
    }
}

H 字符串排序(1)

using System;

public class Program{
    public static void Main(){
        var n = int.Parse(Console.ReadLine());
        var line = Console.ReadLine();
        var tokens = line.Split();
        Array.Sort(tokens);
        Console.WriteLine(string.Join(' ', tokens));
    }
        
}

I 字符串排序(2)

using System;

public class Program{
    public static void Main(){
        var line = Console.ReadLine();
        while(line != null){
            var tokens = line.Split();
            Array.Sort(tokens);
            Console.WriteLine(string.Join(' ', tokens));
            line = Console.ReadLine();
        }
    }
}

J 字符串排序(3)

using System;

public class Program{
    public static void Main(){
        var line = Console.ReadLine();
        while(line != null){
            var tokens = line.Split(',');
            Array.Sort(tokens);
            Console.WriteLine(string.Join(',', tokens));
            line = Console.ReadLine();
        }
    }
}