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delete_middle_element_from_stack.cpp #846

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delete_middle_element_from_stack.cpp #846

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42 changes: 42 additions & 0 deletions C-Plus-Plus/delete_middle_element_from_stack.cpp
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// Delete Middle Element From Stack
// Deleting index = (n/2 + 1) = k

#include<iostream>
#include<bits/stdc++.h>
using namespace std;

// small input
// we can also thing with stack size

void DeleteMiddleElement(stack<int> &s, int k){
if(k==1){
s.pop();
return;
}

int val = s.top();
s.pop();

DeleteMiddleElement(s, k-1);

s.push(val);
}

int main(){
stack<int> s;
s.push(3);
s.push(33);
s.push(13);
s.push(30);
s.push(8);

int k = s.size()/2 + 1; // Middle Element of Stack

DeleteMiddleElement(s, k);

int sz = s.size();
for(int i=0; i<sz; i++){
cout<<s.top()<<" ";
s.pop();
}
}