C++

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Beginners - July 2018 (Page 2)

by passiontrip
Stopping a loop that takes an int with a letter
 
When the user enters 'q' or 'Q' I want the program to exit the loop. What confuses me with this is that I'm taking in an integer so I'm unsure of how to stop i...
[4 replies] Last: A few good concepts here I'll give each a try just to learn different ... (by passiontrip)
by hasslersteph
Kargers Min cut algorithm
 
Hi, I have been coding in C++ since in a month and not completely familiar with the errors and bugs encountered (I am a mechanical engineer). I have tried to...
[2 replies] Last: Thanks a lot for your suggestion and information! I figured out a cou... (by hasslersteph)
by trumpler
did i get it right?
 
i do not understand some parts of it 1)Override the Student's OutputIdentity() pure virtual method to display the text "I am a student" to the console 2)O...
[1 reply] : To override something from Student, you must first inherit from Studen... (by Repeater)
by trumpler
was not declared in this scope
 
what does it mean my age was not declared in scope?i thought I just needed to declare it in the header file.did I forgot to connect something that does not allo...
[2 replies] Last: Hello, shouldn't obj ( quaint name ) be a Person of type class Person ... (by mycuser)
by Stauricus
std::filesystem C++17 ?
 
hello everybody. i'm trying to use C++17 filesystem library to open all files in a directory. #include <iostream> #include <string> #include <filesystem> in...
[3 replies] Last: oops, i understand now. i didn't realize the string method was inside... (by Stauricus)
by sc7
how to optimze this code ? (1,2)
 
Prob: Shreya is currently the top rated programmer of the college. She loves to solve problems which are based on range query. But this time she wants to chec...
[20 replies] Last: @ne555 thanks for the help in this, I have learnt a very useful data s... (by sc7)
by closed account 3UohqMoL
Array Sorting
 
Hi can you help me where Am I going wrong in this code i am getting 30 pts and WA for 2 test cases; https://www.codechef.com/LOCJUL18/problems/CMK ...
[4 replies] Last: still giving WA (by closed account 3UohqMoL)
by CGunn86
std::string vs. std::string_view
 
In both passing as a parameter, and as both a plain data type. When to use which? For the longest time I've always passed strings as a const ref: Window(cons...
[5 replies] Last: Also, boost::string_view. (by helios)
by programmy
making initializer list work without parameters
 
normally I think that a constructor with an initializer list would work if there were parameters involved but I am reading the book SFML Game Development with e...
[10 replies] Last: figured it out, all had to do is specify an int in the Mercury constr... (by programmy)
by Dovendyr
Reading scandinavian letters in strings
 
Hello, I must write a program that recognise scandinavian letters. I wonder why this code does not work? (I use CLion 2018.) for (char c: rad) { ...
[2 replies] Last: Thank you, I get the principle I think... (by Dovendyr)
by jgialis
Validation for 2D Char Array Insertion
 
I am working on Tic Tac Toe, and I am mostly complete. This is a side program snippet of code to avoid messing up the other program, but its essentially the sam...
[2 replies] Last: #include <iostream> #include <algorithm> // UTF-8 box-drawing chara... (by tpb)
by terriblyNew
A problem with goto
 
Hello. I am having problems using goto. What I would like to do is break out of all of the nested loops a once when playerPlacement == 50. This seems like it s...
[7 replies] Last: @Manga, I didn't notice it in main, but it's also declared globally. I... (by tpb)
by closed account 4z86RXSz
How to do this type of question
 
College is a major part of life, it gives you new friends life experiences and other stuff, our chef has joined as a teacher in college and he is watching the f...
[3 replies] Last: why not simply use graph for connecting and bfs to see whether they ar... (by sc7)
by thx
Type Command Equivelant
 
I was wondering if there is a "TYPE" command equivalent in C++ as there is in command line. COMMAND LINE CODE: @echo off echo TYPE Command >> example.txt type...
[1 reply] : That looks close to: http://www.gotw.ca/gotw/048.htm (by keskiverto)
by passiontrip
Accessing arrays in a class
 
I'm new to classes and this is my first time using an array within my class. I'm trying to access my array with the print function but when I do I'm getting th...
[3 replies] Last: You do not have to make the arrays static (by Repeater)
by sh4217
Vector pointed by iterator only recognizing one data submember
 
I'm using vectors to obtain and sort a "highscore" struct that has an integer score variable and a character array name one. I use two iterators, i and j, to so...
[3 replies] Last: You have other problems, and it can be simplified: void sortData(ve... (by tpb)
by crisel12
my program runs but keeps on crashing afterwards:(
 
i dont know what is wrong with my program. i fixed the errors. it runs but in the middle it stopped working. it's a program for inverse matrix. please help me ...
[1 reply] : #include<string.h> #include<math.h> #include<conio.h> #include<iostr... (by Manga)
by closed account 1TD80pDG
How to shift string character
 
here is my question https://www.codechef.com/LTIME62B/problems/FRCPRT
[1 reply] : That is not your question. That is your homework. (by keskiverto)
by DesmondLee
Max and Min Random Generate Number
 
My problem : My random generator keep generate 0. Anyway to fix this ? #include "stdafx.h" #include <iostream> #include <iomanip> #include <cstdlib> ...
[5 replies] Last: Here you have taken the wrong value which does not match according to ... (by shivkumar12)
by Jreyn
trying to load from file
 
So, for my homework assignment I am to: Write a C++ program that is menu-driven that allows for the following menu choices: 1.Load an exam: Loading an exa...
[2 replies] Last: tpb, Thanks for the quick reply and getting me pointed in the right d... (by Jreyn)
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