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| Toys & DS - a fun DSA questions |
| Little Axel has N toys numbered from 1 to N. Each toy has two properties: Ei—enjoyment, which is the number of minutes Axel can play with toy number i with... |
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Aug 23, 2020 at 8:36am
[1 reply] : https://www.cplusplus.com/forum/beginner/272345/ You're never going t... (by salem c)
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| Palindrome Count (1,2) |
| A contest closes in n days hh hours, mm minutes and ss seconds. Given two values of n, how many palindromes of the format nhhmmss would we find in the indicated... |
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Aug 23, 2020 at 5:23am
[21 replies] Last: @againtry, thanks a lot and everyone who helped me out there. I am stu... (by shrutichandel)
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by jerryd
Count the files in a folder
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| cplusplus forum, windows 7 MS VS 2017 C++ Is there some code I can write to get a count of the number of files in a folder? Jerryd |
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Aug 23, 2020 at 5:11am
[4 replies] Last: Hello otherwise you can do everything with <windows.h> as I started to... (by Huntercori)
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by lbrandewie
Stupid compiler rules
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| Beginner question. I wanted to make a very simple function that checked whether a pointer (freshly allocated) was null or not. If null, shut down with a message... |
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Aug 22, 2020 at 12:34pm
[6 replies] Last: https://en.cppreference.com/w/cpp/memory/new/nothrow (by againtry)
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by JamesHelp
Got Something to Work and Not sure why its working
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| So i made a mistake in my code, but it did what i wanted it to do. But strangely i don't see the logic of how its working, in fact i would think it should have ... |
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Aug 22, 2020 at 11:20am
[3 replies] Last: Problem solved by the look of it. Note also that the <string> class ha... (by againtry)
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by Gazzieh
Double, Float or other issue?
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| I have some code with the following parameters required... u = 1e-08 dr = 0.00673332 mo = 1 - u mo = u mo = -u mo = 1 - u p = -((1 - u) + dr) ... |
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Aug 22, 2020 at 8:29am
[10 replies] Last: Let's see: #include <iostream> #include <iomanip> using namespace std... (by lastchance)
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| Making my own heap allocation with buckets. |
| I did an exercise and I would like for it to be checked if done correctly. Here is the exercise: Create a LargeBucket class that can store up to 1MB of dat... |
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Aug 22, 2020 at 3:46am
[8 replies] Last: Yeah I am over thinking it. I understand what need to be done now. Tha... (by closed account 26q2b7Xj)
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by atum100
auto keyword type is not recognized in my pc
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| with the given code, my compiler does give an error saying that x has no type defined. void printGraph(vector<int> adj , int V) { for (int v = 0; v... |
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Aug 21, 2020 at 11:15pm
[4 replies] Last: An array of vectors. Creating and passing a 2D vector might have been... (by deleted account xyzzy)
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by MaxGreen
arrays
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| hey lads, I was trying to write a code which will create an array with random integer values, and the number of elements in array should be inserted by the use... |
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Aug 21, 2020 at 12:26pm
[5 replies] Last: it asked you to count the ordering (sort). You counted the copy.... ... (by jonnin)
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by JamesHelp
trouble following psedocode
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| I'm doing a lesson for random access with files. They gave this pseudocode Write a program that reads each line in a file, reverses its characters, and wri... |
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Aug 21, 2020 at 10:46am
[4 replies] Last: #include <iostream> #include <string> #include <fstream> int main() ... (by againtry)
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by oleksijp
An aligned memory storage to load a file?
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| I need to pass a font that is loaded to the memory from a file with fstream into a FT library function. It needs to be the base char pointer. Now after some rea... |
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Aug 21, 2020 at 7:30am
[2 replies] Last: After further investigation I've found that I don't need to do alignin... (by oleksijp)
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by kdrewes
How to create a new page on files
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| Hi guys, I had a question about files. I wanted to know how to command the text to be outputted on a separate page in the "file.doc" file after each iterati... |
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Aug 20, 2020 at 7:50pm
[3 replies] Last: Sounds great thank you all for your help. I was able to figure it out... (by kdrewes)
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by viraamrao
Creating a Vector of Strings
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| Hi, I was trying to create a vector of strings with size 100 using the following code: vector<string> arr(100); However, this line gives me an error - e... |
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Aug 20, 2020 at 2:58pm
[10 replies] Last: @viraamrao For a good start on this and other "(STL) containers" you c... (by againtry)
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by JamesHelp
reading bytes from a file
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| I have another online "fill in the ..." programming example i'm having trouble with. It has to do with reading binary files and this is the first problem they g... |
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Aug 20, 2020 at 2:23pm
[7 replies] Last: quite confused by this whole mess. @OP: your two code snips are too s... (by ne555)
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| Fill The Cube |
| A company manufactures walls which can be directly implanted at the site. The company uses small square bricks of material C and material D which have similar l... |
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Aug 20, 2020 at 12:24pm
[15 replies] Last: @lastchance PS There was no melt on the second transform of mine origi... (by againtry)
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by Ganado
Option to warn on comma typo/string concatenation
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| In the following code, there is a subtle bug because the first entry of the array is missing a comma, so the string literals get implicitly concatenated togethe... |
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Aug 20, 2020 at 3:00am
[2 replies] Last: Thanks mbozzi, I'll try it out. (by Ganado)
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| Operator<< can't access member variable outside of .h header. |
| I am having trouble understanding why VS won't let me access the Vector's private member of m_gabes_vector in my .cpp file. In my Vector.h I have: friend std::... |
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Aug 20, 2020 at 12:44am
[6 replies] Last: Yeah thanks! (by closed account 26q2b7Xj)
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by Mif
Need help with some loops..
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| Ok.. this is a piece of code where the user input an array of numbers, then user choose its elements, and finally the average of those elements. I want the prog... |
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Aug 19, 2020 at 5:29pm
[6 replies] Last: printf("\n\tElement %d = %d\n", k, mark ); //is this what you want?... (by jonnin)
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by cpJOIJOIJLKM
Dobubly Linked List Adding Default Entries Upon Execution
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| Hi, I have a program to model a small music database. It uses a doubly linked list to model the 'SongList', but my issue is that it seems to add two nodes of da... |
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Aug 19, 2020 at 1:43pm
[3 replies] Last: If you want to do it linear and with `head' and `tail' pointers, then ... (by ne555)
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by Huntercori
pass arguments from functions to functions
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| Hi can you help me, I would like to be able to sort file extensions, dates, file size from the main function. Is it ok if I send the arguments to the find_file ... |
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Aug 19, 2020 at 1:22pm
[9 replies] Last: I removed the & and I put the {} missing for some loops, for most exte... (by Huntercori)
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