aoc-2022-day4.py

def part1(inp):
    
    overlaps = 0

    for pair in inp:
        bounds = []
        for elf in pair.split(','):
            lower, upper = elf.split('-')
            bounds.append(set(range(int(lower), int(upper) + 1)))
        
        if bounds[0] >= bounds[1] or bounds[1] >= bounds[0]:
            overlaps = overlaps + 1
            
    return overlaps


def part2(inp): 

    contains = 0

    for pair in inp:
        bounds = []
        for elf in pair.split(','):
            lower, upper = elf.split('-')
            bounds.append(set(range(int(lower), int(upper) + 1)))
        
        if bounds[0] & bounds[1]:
            contains = contains + 1
            
    return contains
    

if __name__ == '__main__':

    with open('./input.txt') as f:
        inp = f.read().strip().split('\n')

    print(part1(inp))
    print(part2(inp))