/*
Challenge 204

Task 1: Monotonic Array
Submitted by: Mohammad S Anwar

You are given an array of integers.

Write a script to find out if the given array is Monotonic. Print 1 if it is otherwise 0.

    An array is Monotonic if it is either monotone increasing or decreasing.

Monotone increasing: for i <= j , nums[i] <= nums[j]
Monotone decreasing: for i <= j , nums[i] >= nums[j]


Example 1

Input: @nums = (1,2,2,3)
Output: 1

Example 2

Input: @nums = (1,3,2)
Output: 0

Example 3

Input: @nums = (6,5,5,4)
Output: 1
*/

#include <iostream>
#include <vector>

int is_monotonic(const std::vector<int>& data) {
    if (data.size() < 2)
        return 1;
    else {
        int climb = 0, descend = 0;
        for (size_t i = 0; i < data.size() - 1; i++) {
            int delta = data[i+1]-data[i];
            if (delta > 0) climb++;
            else if (delta < 0) descend++;
            if (climb && descend) return 0;
        }
        return 1;
    }
}

int main(int argc, char* argv[]) {
    argv++; argc--;
    std::vector<int> data;

    for (int i = 0; i < argc; i++)
        data.push_back(atoi(argv[i]));
    std::cout << is_monotonic(data) << std::endl;
}