!!!マージソート
[VC++.NET]{{category ロジック}}
VC++.NET 2005

 using namespace System;
 using namespace System::Collections;
 
 
 static void marge( array<String^>^ ary, 
                    array<String^>^ ary1,
                    array<String^>^ ary2 ) {
     
     int i = 0;
     int j = 0;
     int k = 0;
     while(i < ary1->Length && j < ary2->Length ) {
         if ( ary1[i]->CompareTo(ary2[j]) < 0 ) {
             ary[k++] = ary1[i++];
         } else {
             ary[k++] = ary2[j++];
         }
     }
     while(i < ary1->Length ) {
         ary[k++] = ary1[i++];
     }
     while(j < ary2->Length ) {
         ary[k++] = ary2[j++];    
     }
 }
 
 static void margeSort( array<String^>^ ary ) {
     
     if (ary->Length > 1) {
         int m = ary->Length / 2;
         int n = ary->Length - m;
         array<String^>^ a1 = gcnew array<String^>(m);
         array<String^>^ a2 = gcnew array<String^>(n);
         
         for (int i=0; i<m; i++) {
             a1[i] = ary[i];
         }
         for (int i=0; i<n; i++){
             a2[i] = ary[m + i];
         }
         margeSort(a1);
         margeSort(a2);
         marge(ary, a1, a2);
     }
 }
 
 static void sort( array<String^>^ ary ) {
 
     margeSort(ary);
 
 }
 
 static void print( array<String^>^ ary ) {
 
     for (int i=0; i<ary->Length; i++) {
         Console::WriteLine(ary[i]);
     }
 }
 
 int main(array<System::String ^> ^args)
 {
     
     String^ line;
     IList^ list = gcnew ArrayList();
     
     while ( (line = Console::ReadLine()) != nullptr ) {
         list->Add(line);
     }
     
     array<String^>^ ary = gcnew array<String^>(list->Count);
     list->CopyTo(ary, 0);
     
     sort(ary);
     print(ary);    
     return 0;
 }