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		<title>C++/Queue Stack/your stack - История изменений</title>
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		<updated>2026-04-16T23:27:57Z</updated>
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		<id>http://cppe.ru/index.php?title=C%2B%2B/Queue_Stack/your_stack&amp;diff=1875&amp;oldid=prev</id>
		<title> в 14:21, 25 мая 2010</title>
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				<updated>2010-05-25T14:21:06Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Предыдущая&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Версия 14:21, 25 мая 2010&lt;/td&gt;
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	<entry>
		<id>http://cppe.ru/index.php?title=C%2B%2B/Queue_Stack/your_stack&amp;diff=1876&amp;oldid=prev</id>
		<title>Admin: 1 версия:&amp;#32;Импорт контента...</title>
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				<updated>2010-05-25T10:28:04Z</updated>
		
		<summary type="html">&lt;p&gt;1 версия: Импорт контента...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Новая страница&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==A classical stack operation using a string of  characters.==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;cpp&amp;quot;&amp;gt;  &lt;br /&gt;
#include &amp;lt;iostream&amp;gt;&lt;br /&gt;
#include &amp;lt;string.h&amp;gt;&lt;br /&gt;
using namespace std;&lt;br /&gt;
#define maxlen 80&lt;br /&gt;
class stack {&lt;br /&gt;
 char str1[maxlen];&lt;br /&gt;
 int  first;   &lt;br /&gt;
public:&lt;br /&gt;
 void clear(void);&lt;br /&gt;
 char top(void);&lt;br /&gt;
 int  empty(void);&lt;br /&gt;
 int  full(void);&lt;br /&gt;
 void push(char chr);&lt;br /&gt;
 char pop(void);&lt;br /&gt;
};&lt;br /&gt;
void stack::clear(void)&lt;br /&gt;
{&lt;br /&gt;
 first=0;&lt;br /&gt;
}   &lt;br /&gt;
  char stack::top(void)&lt;br /&gt;
{&lt;br /&gt;
 return (str1[first]);&lt;br /&gt;
}&lt;br /&gt;
int stack::empty(void)&lt;br /&gt;
{&lt;br /&gt;
 return (first==0);&lt;br /&gt;
}&lt;br /&gt;
int stack::full(void)&lt;br /&gt;
{&lt;br /&gt;
 return (first==maxlen-1);&lt;br /&gt;
}&lt;br /&gt;
void stack::push(char chr)&lt;br /&gt;
{&lt;br /&gt;
 str1[++first]=chr;&lt;br /&gt;
}   &lt;br /&gt;
char stack::pop(void)&lt;br /&gt;
{&lt;br /&gt;
 return (str1[first-1]);&lt;br /&gt;
}&lt;br /&gt;
main( )&lt;br /&gt;
{&lt;br /&gt;
 stack mystack;&lt;br /&gt;
 char str[11]=&amp;quot;0123456789&amp;quot;;&lt;br /&gt;
 mystack.clear( );&lt;br /&gt;
  &lt;br /&gt;
 for(int i=0; (int) i&amp;lt;strlen(str);i++) {&lt;br /&gt;
   if (!mystack.full( ))&lt;br /&gt;
     mystack.push(str[i]);&lt;br /&gt;
     cout &amp;lt;&amp;lt; str[i] &amp;lt;&amp;lt; endl;&lt;br /&gt;
 }&lt;br /&gt;
 while (!mystack.empty( ))&lt;br /&gt;
   cout &amp;lt;&amp;lt; mystack.pop( ) &amp;lt;&amp;lt; endl;&lt;br /&gt;
 &lt;br /&gt;
 return (0);&lt;br /&gt;
}&lt;br /&gt;
  &lt;br /&gt;
    &lt;br /&gt;
  &amp;lt;/source&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Define cast operator to cast stack to int==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;cpp&amp;quot;&amp;gt;  &lt;br /&gt;
#include &amp;lt;iostream&amp;gt;&lt;br /&gt;
using namespace std;&lt;br /&gt;
const int SIZE=100;&lt;br /&gt;
class stack {&lt;br /&gt;
   int stck[SIZE];&lt;br /&gt;
   int tos;&lt;br /&gt;
 public:&lt;br /&gt;
   stack(void) {tos=0;}&lt;br /&gt;
   void push(int i);&lt;br /&gt;
   int pop(void);&lt;br /&gt;
   operator int(void) {return tos;}&lt;br /&gt;
};&lt;br /&gt;
void stack::push(int i){&lt;br /&gt;
   if(tos==SIZE){&lt;br /&gt;
      cout &amp;lt;&amp;lt; &amp;quot;Stack is full.&amp;quot; &amp;lt;&amp;lt; endl;&lt;br /&gt;
      return;&lt;br /&gt;
   }&lt;br /&gt;
   stck[tos++] = i;&lt;br /&gt;
}&lt;br /&gt;
int stack::pop(void){&lt;br /&gt;
   if(tos==0){&lt;br /&gt;
      cout &amp;lt;&amp;lt; &amp;quot;Stack underrun.&amp;quot; &amp;lt;&amp;lt; endl;&lt;br /&gt;
      return 0;&lt;br /&gt;
   }&lt;br /&gt;
    &lt;br /&gt;
   return stck[--tos];&lt;br /&gt;
}&lt;br /&gt;
int main(void){&lt;br /&gt;
   stack stck;&lt;br /&gt;
   int i, j;&lt;br /&gt;
   for(i=0; i&amp;lt;20; i++)&lt;br /&gt;
      stck.push(i);&lt;br /&gt;
   j = stck;                  &lt;br /&gt;
   cout &amp;lt;&amp;lt; j &amp;lt;&amp;lt; &amp;quot; items on stack.&amp;quot; &amp;lt;&amp;lt; endl;&lt;br /&gt;
   cout &amp;lt;&amp;lt; (SIZE - stck) &amp;lt;&amp;lt; &amp;quot; spaces open.&amp;quot; &amp;lt;&amp;lt; endl;&lt;br /&gt;
   &lt;br /&gt;
 }&lt;br /&gt;
  &lt;br /&gt;
    &lt;br /&gt;
  &amp;lt;/source&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Stack class based on array==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;cpp&amp;quot;&amp;gt;  &lt;br /&gt;
#include &amp;lt;iostream&amp;gt;&lt;br /&gt;
using namespace std;&lt;br /&gt;
#define ARR_SIZE 100&lt;br /&gt;
class stack &lt;br /&gt;
{&lt;br /&gt;
   int stck[ARR_SIZE];&lt;br /&gt;
   int stack_top;&lt;br /&gt;
 public:&lt;br /&gt;
   stack();&lt;br /&gt;
   ~stack();&lt;br /&gt;
   void push(int i);&lt;br /&gt;
   int pop();&lt;br /&gt;
};&lt;br /&gt;
stack::stack(void)&lt;br /&gt;
{&lt;br /&gt;
   stack_top = 0;&lt;br /&gt;
   cout &amp;lt;&amp;lt; &amp;quot;Stack Initialized&amp;quot; &amp;lt;&amp;lt; endl;&lt;br /&gt;
}&lt;br /&gt;
stack::~stack(void){&lt;br /&gt;
   cout &amp;lt;&amp;lt; &amp;quot;Stack Destroyed&amp;quot; &amp;lt;&amp;lt; endl;&lt;br /&gt;
}&lt;br /&gt;
void stack::push(int i){&lt;br /&gt;
   if (stack_top==ARR_SIZE)&lt;br /&gt;
    {&lt;br /&gt;
      cout &amp;lt;&amp;lt; &amp;quot;Stack is full.&amp;quot; &amp;lt;&amp;lt; endl;&lt;br /&gt;
      return;&lt;br /&gt;
    }&lt;br /&gt;
   stck[stack_top] = i;&lt;br /&gt;
   stack_top++;&lt;br /&gt;
}&lt;br /&gt;
int stack::pop(void){&lt;br /&gt;
   if (stack_top==0){&lt;br /&gt;
      cout &amp;lt;&amp;lt; &amp;quot;Stack underflow.&amp;quot; &amp;lt;&amp;lt; endl;&lt;br /&gt;
      return 0;&lt;br /&gt;
    }&lt;br /&gt;
   stack_top--;&lt;br /&gt;
   return stck[stack_top];&lt;br /&gt;
}&lt;br /&gt;
int main(void){&lt;br /&gt;
   stack obj1, obj2;&lt;br /&gt;
   obj1.push(1);&lt;br /&gt;
   obj2.push(2);&lt;br /&gt;
   obj1.push(3);&lt;br /&gt;
   obj2.push(4);&lt;br /&gt;
   cout &amp;lt;&amp;lt; obj1.pop() &amp;lt;&amp;lt; endl;&lt;br /&gt;
   cout &amp;lt;&amp;lt; obj1.pop() &amp;lt;&amp;lt; endl;&lt;br /&gt;
   cout &amp;lt;&amp;lt; obj2.pop() &amp;lt;&amp;lt; endl;&lt;br /&gt;
   cout &amp;lt;&amp;lt; obj2.pop() &amp;lt;&amp;lt; endl;&lt;br /&gt;
}&lt;br /&gt;
  &lt;br /&gt;
    &lt;br /&gt;
  &amp;lt;/source&amp;gt;&lt;/div&gt;</summary>
		<author><name>Admin</name></author>	</entry>

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