सी ++ प्रोग्राम एसटीएल में स्टैक लागू करने के लिए

स्टैक एक रैखिक डेटा संरचना है जो एक विशेष क्रम का अनुसरण करती है जिसमें संचालन किया जाता है। ऑर्डर FILO (फर्स्ट इन फर्स्ट आउट) या LIFO (लास्ट इन फर्स्ट आउट) हो सकता है

एल्गोरिदम

Begin
   Declare stack vector.
   Take the input as per choice.
   Call the functions within switch operation:
   s.size() = Returns the size of stack.
   s.push() = It is used to insert elements to the stack.
   s.pop() = To pop out the value from the stack.
   s.top() = Returns a reference to the top most element of stack.
End.

उदाहरण कोड

#include <iostream>
#include <stack>
#include <string>
#include <cstdlib>
using namespace std;
int main() {
   stack<int> s;
   int c, i;
   while (1) {
      cout<<"1.Size of the Stack"<<endl;
      cout<<"2.Insert Element into the Stack"<<endl;
      cout<<"3.Delete Element from the Stack"<<endl;
      cout<<"4.Top Element of the Stack"<<endl;
      cout<<"5.Exit"<<endl;
      cout<<"Enter your Choice: ";
      cin>>c;
      switch(c) {
         case 1:
            cout<<"Size of the stack: ";
            cout<<s.size()<<endl;
         break;
         case 2:
            cout<<"Enter value to be inserted: ";
            cin>>i;
            s.push(i);
         break;
         case 3:
            i = s.top();
            if (!s.empty()) {
               s.pop();
               cout<<i<<" Deleted"<<endl;
            }else {
               cout<<"Stack is Empty"<<endl;
            }
         break;
         case 4:
            cout<<"Top Element of the Stack: ";
            cout<<s.top()<<endl;
            break;
         case 5:
            exit(1);
         break;
         default:
            cout<<"Wrong Choice"<<endl;
      }
   }
   return 0;
}

आउटपुट

1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 1
Size of the stack: 0
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 2
Enter value to be inserted: 1
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 2
Enter value to be inserted: 7
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 2
Enter value to be inserted: 6
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 2
Enter value to be inserted: 10
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 2
Enter value to be inserted: 4
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 1
Size of the stack: 5
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 3
4 Deleted
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit

Enter your Choice: 4
Top Element of the Stack: 10
1.Size of the Stack
2.Insert Element into the Stack
3.Delete Element from the Stack
4.Top Element of the Stack
5.Exit
Enter your Choice: 5

Exit code: 1