#!/usr/bin/env python
# coding: utf-8

# In[16]:


def count(f):
    increased = 0 
    prev_m = None 

    for l in f: 
        i = int(l.rstrip()) 
        if prev_m is None: 
            prev_m = i 
            continue 
        if i > prev_m: 
            increased += 1 

        prev_m = i
        
    return increased


def count_window(f):
    increased = 0 
    window = [] 

    for l in f:
        i = int(l.rstrip()) 
        if len(window) < 3: 
            window.append(i) 
            continue 

        if sum(window[1:]) + i > sum(window): 
            increased += 1 

        window.pop(0) 
        window.append(i)
        
    return increased


# In[17]:


import import_ipynb
import helper


# In[18]:


count(helper.open_file('2021_1.txt'))


# In[19]:


count_window(helper.open_file('2021_1.txt'))


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