PAT basic1026-1030（Python版）

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Python版的PAT，Python2环境。

1026：

from sys import exitstr = raw_input()for i in range(len(str)):if str[i] == ' ':flag = ibreakc1 = int(str[:flag])c2 = int(str[flag+1:])CTK = 100sec_sum = (c2 - c1) / CTKif (c2 - c1) % 100 >= 50:sec_sum += 1hh = sec_sum / 3600mm = (sec_sum % 3600) / 60ss = sec_sum % 60print "%02d:%02d:%02d" % (hh, mm, ss)exit(0)

1027：

from sys import exitstr = raw_input()for i in range(len(str)):if str[i] == ' ':flag = ibreakc1 = int(str[:flag])c2 = str[flag+1:]c1 += 1num = 0i = 0while 1:c1 -= 2 * ( 2 * i + 1 )i += 1num += 1if c1 < 2 *(2 * i + 1):breakfor j in range(num):print "%s%s" % (j*' ', ( 2*(num-1-j) + 1 )*c2)for j in range(1,num):print "%s%s" % ( (num-j-1)*' ', (2*j + 1)*c2)print c1exit(0)

1028：

from sys import exitdef isValid( birth ):    if birth <= "2014/09/06" and birth >= "1814/09/06":        return 0    else:         return 1str = raw_input()num = int(str)max = []min = []validNum = 0for i in range(num):    tmp = raw_input().split()    if isValid( tmp[1] ) == 0:        validNum += 1                                      if len(max) == 0 or max[1] > tmp[1]:            max = tmp        if len(min) == 0 or min[1] < tmp[1]:            min = tmpif len(max) != 0:    print validNum, max[0], min[0]else:    print '0'exit(0)

1029：

from sys import exitstr1 = raw_input()str2 = raw_input()str3 = ""for ch in str1:    if not ch in str2:        if not (ch in str3 or ch.upper() in str3):            str3 += ch.upper()print str3exit(0)

1030：

from sys import exitstr1 = raw_input()str2 = raw_input()Np = str1.split(' ')N = int(Np[0])p = int(Np[1])strNum = str2.split(' ')num = []for i in strNum:    num.append(int(i))num.sort()       start = 0end = 0maxLen = 0while True:    if start == end:        end += 1        continue    if end >= N:        break    if num[end] <= p * num[start]:        end += 1    else:        if maxLen < (end - start):            maxLen = end - start        start += 1        if end == N:        breakif maxLen < end - start:    maxLen = end - startprint maxLenexit(0)

刚学Python，代码写的可能不是很规范，请多多指教。

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