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string2int.py
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string2int.py
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class Solution(object):
def myAtoi(self, str):
"""
:type str: str
:rtype: int
"""
clean_str = str.strip(' ')
if len(clean_str) == 0:
return 0
value = 0
sign = 1
if clean_str[0]=='-':
sign = -1
clean_str = clean_str[1:]
elif clean_str[0]=='+':
sign = 1
clean_str = clean_str[1:]
for char in clean_str:
if char in ['0','1','2','3','4','5','6','7','8','9']:
value = value * 10 + int(char)
else:
break
INT_MAX = 2**31-1
INT_MIN = -2**31
value = value * sign
if value > INT_MAX:
value = INT_MAX
if value < INT_MIN:
value = INT_MIN
return value
def stringToString(input):
return input[1:-1].decode('string_escape')
def intToString(input):
if input is None:
input = 0
return str(input)
def main():
import sys
def readlines():
for line in sys.stdin:
yield line.strip('\n')
lines = readlines()
while True:
try:
line = lines.next()
str = stringToString(line)
ret = Solution().myAtoi(str)
out = intToString(ret)
print out
except StopIteration:
break
if __name__ == '__main__':
main()