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You are given coins of different denominations and a total amount of mon...
給出一個(gè)字符串(假設(shè)長(zhǎng)度最長(zhǎng)為1000),求出它的最長(zhǎng)回文子串副签,你可以假定只有一個(gè)滿足條件的最長(zhǎng)回文串遥椿。 地址如下(LintCode): www...
給定一個(gè)字符串,請(qǐng)找出其中無重復(fù)字符的最長(zhǎng)子字符串淆储。 python 實(shí)現(xiàn): 9诔 !1九椤2耆埂!注意 d[ch] >= left 因?yàn)闀?huì)有這種比如:abba点额。
Implement strStr(). Returns the index of the first occurrence of needle ...
125. Valid Palindrome Given a string, determine if it is a palindrome, c...