Max Element

References:

Quora.com

Problem Link

<Solution>

#include<bits/stdc++.h>
using namespace std;
int main()
{ stack<int>s;

int n,i,j,x;
cin>>n;
for(i=0;i<n;i++)
{
cin>>x;
if(x==1)
{
cin>>j;
if(s.empty())
s.push(j);
else
{
s.push(max(j,s.top()));
}
}
else if(x==2)
{
if(!s.empty())
s.pop();
}

else{
printf(“%d\n”,s.top());
}

}

}

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About waprogramming

I am in CSE,from CUET
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