stack c++
stack<int> stk;
stk.push(5);
int ans = stk.top(5); // ans =5
stk.pop();//removes 5
stack c++
stack<int> stk;
stk.push(5);
int ans = stk.top(5); // ans =5
stk.pop();//removes 5
cpp stack
// Fast DIY Stack
template<class S, const int N> class Stack {
private:
S arr[N];
int top_i;
public:
Stack() : arr(), top_i(-1) {}
void push (S n) {
arr[++top_i] = n;
}
void pop() {
top_i--;
}
S top() {
return arr[top_i];
}
S bottom() {
return arr[0];
}
int size() {
return top_i+1;
}
};
c++ insertion in astack
stack<int> a;
a.push(5);
a.push(6);
//.....
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