Queue Challenge

Medium Queue: Applications PRO

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Problem Statement

Write a C program to check whether a queue contains duplicate elements (print 1 if duplicates exist, 0 otherwise).

Input Format

First line contains n. Second line contains n queue elements.

Output Format

Print 1 if duplicates exist, else 0.

Constraints

1 <= n <= 50

Sample Input

4
10 20 30 10

Sample Output

Explanation

Inspect queue elements pairwise or use a frequency check to detect any repeated values.

Starter Code

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

int main() {
    int n;
    if (scanf("%d", &n) == 1) {
        // Write your code here for queue challenge
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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