这个比赛允许让指针放开吗?就是使用指针来表达一些没有指针很难表达的结构~

robert · robert

class MyPoint
{
MyPoint Parent {get; set;}
Point Point {get;set;}
}
void CloneArry(MyPoint[] source, MyPoint[] target)
{
for(int i = 0; i < source.Length; i++)
{
target[i]=new MyPoint(){Parent=source[i].Parent,Point=source[i].Point};
}
}

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robert · robert

对不住，经过慎重考虑。
我们决定本次比赛不允许使用Unsafe的Code。请参见
http://gcdn.grapecity.com/showtopic-1309.html

gerry · gerry

恩为了确保参赛人员只专心于算法而不是受限于语言。只使用Managed Code 是必须的。和以前比赛一样，大家的程序都会在沙箱中运行，我们给沙箱的安全级别将不会让选手有运行包括但不限于 unsafe，反射，dll import 之类的权限。

tbugs · tbugs

其实我想做的就是内存拷贝而已...不想循环赋值。。。。

robert · robert

呵呵，看来你只能用循环赋值了。
顺便问下，你要参加比赛？

tbugs · tbugs

呵呵，写个玩玩而已~

能报名参赛吗·？不要奖金~

Dijkstra · Dijkstra

public class IdInfo
{
public int IdNumber;
public IdInfo(int IdNumber)
{
this.IdNumber = IdNumber;
}
}
public class Person
{
public int Age;
public string Name;
public IdInfo IdInfo;
public Person ShallowCopy()
{
return (Person)this.MemberwiseClone();
}
public Person DeepCopy()
{
Person other = (Person) this.MemberwiseClone();
other.IdInfo = new IdInfo(this.IdInfo.IdNumber);
return other;
}
}
public class Example
{
public static void Main()
{
// Create an instance of Person and assign values to its fields.
Person p1 = new Person();
p1.Age = 42;
p1.Name = "Sam";
p1.IdInfo = new IdInfo(6565);
// Perform a shallow copy of p1 and assign it to p2.
Person p2 = (Person) p1.ShallowCopy();
// Display values of p1, p2
Console.WriteLine("Original values of p1 and p2:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
// Change the value of p1 properties and display the values of p1 and p2.
p1.Age = 32;
p1.Name = "Frank";
p1.IdInfo.IdNumber = 7878;
Console.WriteLine("\nValues of p1 and p2 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
// Make a deep copy of p1 and assign it to p3.
Person p3 = p1.DeepCopy();
// Change the members of the p1 class to new values to show the deep copy.
p1.Name = "George";
p1.Age = 39;
p1.IdInfo.IdNumber = 8641;
Console.WriteLine("\nValues of p1 and p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p3 instance values:");
DisplayValues(p3);
}
public static void DisplayValues(Person p)
{
Console.WriteLine(" Name: {0:s}, Age: {1:d}", p.Name, p.Age);
Console.WriteLine(" Value: {0:d}", p.IdInfo.IdNumber);
}
}
// The example displays the following output:
// Original values of p1 and p2:
// p1 instance values:
// Name: Sam, Age: 42
// Value: 6565
// p2 instance values:
// Name: Sam, Age: 42
// Value: 6565
//
// Values of p1 and p2 after changes to p1:
// p1 instance values:
// Name: Frank, Age: 32
// Value: 7878
// p2 instance values:
// Name: Sam, Age: 42
// Value: 7878
//
// Values of p1 and p3 after changes to p1:
// p1 instance values:
// Name: George, Age: 39
// Value: 8641
// p3 instance values:
// Name: Frank, Age: 32
// Value: 7878

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Dijkstra · Dijkstra

不知道这个可不可以帮忙

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这个比赛允许让指针放开吗?就是使用指针来表达一些没有指针很难表达的结构~

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