Created
March 12, 2024 20:16
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String to integer (Leetcode 8) easy python solution
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class Solution(object): | |
def myAtoi(self, s): | |
""" | |
:type s: str | |
:rtype: int | |
""" | |
sign = "" | |
res = 0 | |
number_read = False | |
for i in range(len(s)): | |
if s[i] == '+' or s[i] == '-': | |
if sign or number_read: break | |
else: sign = s[i] | |
elif s[i] >= '0' and s[i] <= '9': | |
number_read = True | |
res *= 10 | |
res += int(s[i]) | |
elif s[i] == ' ': | |
if number_read or sign: break | |
else: break | |
int_max = (2 ** 31) - 1 | |
int_min = -2 ** 31 | |
if sign == '-': res *= -1 | |
if res > int_max: return int_max | |
if res < int_min: return int_min | |
return res |
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