Browser History Simulation

Problem Statement

Input Format

First line contains n queries. Subsequent lines contain query type (1 url for visit, 2 for back).

Output Format

Print current active page or remaining history stack from top to bottom separated by spaces.

Constraints

1 <= n <= 50

Sample Input

4
1 101
1 102
2
1 103

Sample Output

103 101

Explanation

Maintain history pages in a stack; visiting a new page pushes it onto the stack, while going back pops the top page.

Starter Code

#include <stdio.h>
#include <stdlib.h>

int main() {
    int n;
    if (scanf("%d", &n) == 1) {
        // Write your code here to simulate browser history using stack
    }
    return 0;
}

Limits

• Time Limit: 1s
• Memory Limit: 256MB