Alex0111

摘要： 8. String to Integer (atoi) Total Accepted: 97070 Total Submissions: 721266 Difficulty: Easy Implement atoi to convert a string to an integer. Hint: C 阅读全文

摘要： double ←── float 高 ↑ long ↑ unsigned ↑ int ←── char,short 低 图中横向箭头表示必须的转换，如两个float型数参加运算，虽然它们类型相同，但仍要先转成double型再进行运算，结果亦为double型。 纵向箭头表示当运算符两边的运算数为不同类 阅读全文

摘要： 100. Same Tree Total Accepted: 122794 Total Submissions: 284606 Difficulty: Easy Given two binary trees, write a function to check if they are equal o 阅读全文