impl Solution { pub fn eval_rpn(tokens: Vec<String>) -> i32 { let mut stack: Vec<i32> = Vec::new(); for token in tokens { // 能解析为数字表示为数字,否则为字符 if let Ok(val) = token.parse::<i32>() { stack.push(val); } else { // 注意先栈顶元素为右操作数 let right_...
方法二: classSolution:defevalRPN(self, tokens: List[str]) ->int: symbol= ['+','-','*','/'] stack=[]fortintokens:iftinsymbol: stack.append(self.eval(stack.pop(-2), stack.pop(), t))else: stack.append(int(t))returnstack[-1]defeval(self, x, y, symbol):ifsymbol =='+':ret...
classSolution{public:intevalRPN(vector<string>&tokens){if(tokens.size()==1)returnstoi(tokens[0]);stack<int>st;for(inti=0;i<tokens.size();++i){if(tokens[i]!="+"&&tokens[i]!="-"&&tokens[i]!="*"&&tokens[i]!="/"){st.push(stoi(tokens[i]));}else{intnum1=st.top();st.pop...
注意: 先后弹出的元素是有顺序之分的! 1classSolution150 {23publicintevalRPN(String[] tokens) {4Stack<Integer> numberStack =newStack<>();5for(String token : tokens) {6switch(token) {7case"+":8case"-":9case"*":10case"/":11intfirstPopNumber =numberStack.pop();12intsecondPopNumber =n...
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简介:【leetcode报错】 leetcode格式问题解决:error: stray ‘\302’ in program [solution.c] 一、情景再现 二、报错原因 该错误是指源程序中有非法字符,需要将非法字符去掉。 一般是由于coder1.使用中文输入法或者2.从别的地方直接复制粘贴代码造成的。
1：假如有三个孩子[A、B、C]对应的评分是 [1, 6, 5]此时的分配结果是 [1, 2, 1] 不是 [1, 3, 1]，因为B和A相比B评分高所以给B多给一个，B再与C相比时虽然评分高但此时B已经有两个糖果C此时只有一个所有不用再给B糖果。第...
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classSolution:defmaxSubArray(self,nums):sum=0max=nums[0]foriinnums:ifsum+i>0and sum>=max:sum+=i max=sumreturnmax 但是如果示例是和小于0呢? 比如样例是 [-2, -1] 的情况下, 上述的代码就覆盖不了了. 因此还需判断和小于0的情况, 小于0时直接替换, 并于当前最大值比较即可. ...
Parts of the problems don't provide C interface for solution, so I accomplished them with C++ Language. CompileCfiles using command: CompileC++files using command: g++ -std=c++11 -Wall src/bar.cpp -o bar OR You can build all the files usingmake(Use MinGW GCC and GNU Make on Windows)....