Created
October 9, 2017 23:14
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Stack Implementation
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| #include <bits/stdc++.h> | |
| using namespace std; | |
| int max,i,n; | |
| int top=-1; | |
| class stack | |
| { | |
| int s[20]; | |
| public: | |
| void push(); | |
| void pop(); | |
| void display(); | |
| }; | |
| void stack::push() | |
| { | |
| int x; | |
| if(top==(max-1)) | |
| cout<<"Stack is full"; | |
| else | |
| { | |
| cout<<"enter data:"; | |
| cin>>x; | |
| top=top+1; | |
| s[top]=x; | |
| } | |
| } | |
| void stack::pop() | |
| { | |
| if(top==-1) | |
| cout<<"stack is empty"; | |
| else | |
| s[top--]='\0'; | |
| } | |
| void stack::display() | |
| { | |
| cout<<"displaying the contents of stack:\n"; | |
| if(top==-1) | |
| cout<<"stack is empty"<<"\n"; | |
| else | |
| { | |
| for(i=0;i<=top;i++) | |
| cout<<s[i]<<"\t"; | |
| cout<<"\n"; | |
| } | |
| } | |
| void main() | |
| { | |
| stack sa; | |
| clrscr(); | |
| cout<<"enter the range:"; | |
| cin>>max; | |
| while(1) | |
| { | |
| cout<<"\n1.push\n2.pop\n3.display\n4.exit"; | |
| cout<<"\n enter ur choice:"; | |
| cin>>n; | |
| switch(n) | |
| { | |
| case 1: | |
| sa.push(); | |
| break; | |
| case 2: | |
| sa.pop(); | |
| break; | |
| case 3: | |
| sa.display(); | |
| break; | |
| case 4: | |
| exit(0); | |
| default: | |
| cout<<"Invalid option"; | |
| } | |
| } | |
| getch(); | |
| } |
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