I was once stucked in How to check Whether a Python module has been installed or not. After Googling, I found this trick. Python allows user to pass command from out of a python file.See here The resu...Determine whether an integer is a palindrome. Do this without extra space. Some ...
Problem: Implement a function to check if a singly linked list is a palindrome. 思路: 最简单的方法是 Reverse and compare. 另外一种非常经典的办法是用 Recursive 的思路,把一个list看成这种形式: 0 ( 1 ( 2 ( 3 ) 2 ) 1 ) 0 0 ( 1 ( 2 ( 3 3 ) 2 ) 1 ) 0 CC150里面给出的Code...
./test4.cpp: In function ‘int main()’: ./test4.cpp:10:9: error: ‘cin’ was not declared in this scope 10 | if (cin >> word) | ^~~ ./test4.cpp:3:1: note: ‘std::cin’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’? 2 | #include...
LeetCode #9 Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward. 判断一个整数是否是回文数,当一个整数正着念和反着念是一样的时候它是一个回文数。 根据给出的案例,可以判断,负数肯定不是回文数,...9图 .9图的只做(as) 先把...