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Day3.py
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import time
def char_value(A):
AI = ord(A)
if AI < 97:
return AI - 64 + 26
else:
return AI - 96
def part1():
with open("Day3input.txt", "r") as file:
Total = 0
for line in file:
line = line.strip()
half = len(line)//2
first = sorted(line[0:half])
second = sorted(line[half:])
i=j=0
while True:
if first[i] == second[j]:
Total += char_value(first[i])
break
elif first[i] > second[j] and j < half - 1:
j += 1
elif first[i] < second[j] and i < half - 1:
i += 1
else:
break
return Total
def part2():
with open("Day3input.txt", "r") as file:
Total = 0
a = 0
lines = ["", "", ""]
for line in file:
if a < 3:
lines[a] = sorted(line)[1:]
a+=1
if a < 3:
continue
a = 0
i=j=k=0
while True:
if lines[0][i] == lines[1][j] == lines[2][k]:
Total += char_value(lines[0][i])
break
minchar = min(lines[0][i], lines[1][j], lines[2][k])
if minchar == lines[0][i]:
i+=1
elif minchar == lines[1][j]:
j+=1
else:
k+=1
return Total
now = time.time()
print("part 1: ", part1())
print(time.time() - now)
now = time.time()
print("part 2:", part2())
print(time.time() - now)