stack

问题 I am trying to solve this problem: https://leetcode.com/articles/number-of-atoms/#approach-1-recursion-accepted. The question is: given a formula like C(Mg2(OH)4)2 , return a hash table with elements and their counts. Element names always start with a capital letter and may be followed by a small letter. I thought that I will first start by solving the simplest case: no brackets. def bracket_hash(formula): element = "" atom_count = 0 element_hash = {} for x in formula: if x.isupper(): if

问题 Here the piece of code : int main() { char buffer[64]; int check; ... As you can see, check is declared AFTER buffer , so in the stack, we must have check ABOVE buffer in the stack right? However, when I disassembly (x86) it with gdb, this is what I got : --> check at 0xbffff4f8 --> buffer at 0xbffff4b8 My question : is there a specific order in the stack for local variable? Also, I have to tell you that I tried the same thing on another computer (x86 too, same gcc compilation options, but

问题 This question already has answers here : JsonConvert.Deserializer indexing issues (4 answers) Closed 4 years ago . Using the NewtonSoft JSO serializer and a stack data structure. The order is reversed when I deserialize the structure. Comparing numbers and ss. Am I doing something wrong here or is there any workaround the issue. using Newtonsoft.Json; using System; using System.Collections.Generic; class Example { public static void Main() { Stack<string> numbers = new Stack<string>();

问题 This question already has answers here : JsonConvert.Deserializer indexing issues (4 answers) Closed 4 years ago . Using the NewtonSoft JSO serializer and a stack data structure. The order is reversed when I deserialize the structure. Comparing numbers and ss. Am I doing something wrong here or is there any workaround the issue. using Newtonsoft.Json; using System; using System.Collections.Generic; class Example { public static void Main() { Stack<string> numbers = new Stack<string>();

问题 I wonder if there's a way to figure out if a variable is stack or heap allocated. Consider this: struct SomeStruct; fn main() { let some_thing = Box::new(SomeStruct); println!("{:p}", some_thing); foo(&*some_thing); } fn foo (bar: &SomeStruct) { println!("{:p}", bar); } prints 0x1 0x1 And then struct SomeStruct; fn main() { let some_thing = &SomeStruct; println!("{:p}", some_thing); foo(some_thing); } fn foo (bar: &SomeStruct) { println!("{:p}", bar); } prints 0x10694dcc0 0x10694dcc0 I can

问题 I am very new to python or pandas coding. so I am kind of struck here and any input is appreciated. I have two df, individually ordered based on a criteria. df1 : list of orders with quantity df2 : list of inventories with quantity and date available. quantity necessarily not to equal to order quantity. I need to pop first order in df1 and keep popping inventory in df2 until order quantity satisfied and also maintain, how many inventory I took to fulfill the order Any help would be greatly

问题 I am very new to python or pandas coding. so I am kind of struck here and any input is appreciated. I have two df, individually ordered based on a criteria. df1 : list of orders with quantity df2 : list of inventories with quantity and date available. quantity necessarily not to equal to order quantity. I need to pop first order in df1 and keep popping inventory in df2 until order quantity satisfied and also maintain, how many inventory I took to fulfill the order Any help would be greatly

问题 I'm trying to write a procedure in x64 assembly. I'm calling it in a main program that is written in C++. I'm passing several parameters. I know that first 4 will be in specific registers and the rest of them (should be) on stack. What's more, I read that before taking 5th argument from the stack, I should substract 40 from RSP. And at the begining it worked. Later I needed to check the address of sth so I did it by: cout and &. But then, taking 5th argument from stack didn't work and I have

问题 I need to write a program that takes the maze in the given txt file and prints the solution paths to the console. I wrote this program as you can see below, but I can only find 1 solution. If there are more than 1 solution in the maze, I need to find all these. I have no idea what approach I should take for this. Can you give an idea, please? Here is my work: maze.txt (sent as argument) 11111111111111111 10110011000111111 11001110111001111 10110001011100111 11101111011011001 11101001011011111

问题 I need to write a program that takes the maze in the given txt file and prints the solution paths to the console. I wrote this program as you can see below, but I can only find 1 solution. If there are more than 1 solution in the maze, I need to find all these. I have no idea what approach I should take for this. Can you give an idea, please? Here is my work: maze.txt (sent as argument) 11111111111111111 10110011000111111 11001110111001111 10110001011100111 11101111011011001 11101001011011111