Beginners - C++ Forum - February 2018 (Page 19)

Hi guys! I am a beginner and I just started working on C++. I made this code but it has been crashing and I cant find the problem. Can somebody please help me. ...

[1 reply] : Really that program shouldn't even compile. If it does I suggest you g... (by jlb)

by Zlpres96

8x8 Checkerboard

Hey guys so I just started my 2nd computer science class. My issue is that my first computer science professor was a god awful teacher and spent 95% of the seme...

[3 replies] Last: Your checker board is actually a 2D array. Maybe read this first: htt... (by Thomas1965)

by DarkParadox

Game Library

I want to try to do visual novel game and I know that I need to use library to do it, but I dont know which library is suitable for this type of game. Can someb...

[no replies]

by poohbear

quotation marks in string

i need help with inserting double quotation marks for string . when i enter movie name . the movie name needs to show up in quotation marks. such as "Death G...

[1 reply] : Hello! A very good way to get the movie name surrounded by quotation ... (by Misenna)

by lucdeux

pointer copy causes data corruption inside node

Hello. This is a frequent problem I encounter and I want to be able to figure out what is actually going on. I have a node class that has char and char* priva...

[no replies]

by zarkangelks1

for loop question.

This is a homework question, but I need hints on how to complete it. We did not go over this in-class and I have searched the web and textbook for answers Th...

[1 reply] : Hi, The for loop consists of 3 parts: 1 The starting value 2 The en... (by TheIdeasMan)

by Zelante

Nested If..Else + And/Or operations in them

It's supposed to calculate the amount that the user input. I keep getting this error everytime: error: expected :primary-expression before '<=' token ...

[1 reply] : Hi, The expression is incomplete, you probably meant: if (loanAmt >... (by TheIdeasMan)

by barry23

Swapping values in vector

So this assignment asks us to swap the third value and the last value of a vector if the length of the vector is >=3. Somehow my code isn't working. #include...

[6 replies] Last: never mind i got it. thanks jlb! (by barry23)

by Kloppite

Multiple Read-file handling

Hi guys, I need a bit of suggestion on how to handle read from multiple files in a manner that best suits a program I am writing. The main idea of the program i...

[no replies]

by espoice

About pointers to a double derived class

Hello forum, I have been struggling with this problem since a while. Basically I have a FunzioneBase.h that works like this: #include "Vettore.h" ...

[5 replies] Last: > I'm still working to get it run correctly, anyway I need those rando... (by ne555)

by Hex213

Point argument (vector argument)

Hi, I need to help with that word: "vector <point_t>& points". I don't know what I can write as an argument. void print_points(vector <point_t>& points) {...

[4 replies] Last: Thank you very much. You are god of programming. :-) (by Hex213)

by sharbu

Largest group formed by combinations of pairs - Java

Sample Input 1: 5 6 2 2 3 3 1 1 2 3 1 4 3 4 first line contains N and C. N is the identity number from 1 to N. C is no of pairs given in following C...

[3 replies] Last: #include <iostream> #include <fstream> #include <vector> #include <se... (by lastchance)

by arielga96

class vector, matrix 2D

How is a 2d matrix created from the vector class? help please. I need to know how I can have access to read the matrix and cout. #include <iostream> #in...

[1 reply] : the best way is vector<double> matrix(numrows*numcols); access via m... (by jonnin)

by arielga96

dynamic matrix

help please when I use void max_e_Matriz() appear very large values. #include <iostream> #include <stdlib.h> using namespace std; void dimMatriz(int&,...

[1 reply] : consider using notation. for(x = 0; x < a; x++) for(y = 0; y < b; y... (by jonnin)

by nickhere

vs2017 AND Fwrite

fwrite is giving me expression preceding parentheses of apparent call must have (pointer-to-) function strcat(t5c,"\\7zip.7z"); FILE *filedata...

[9 replies] Last: another dumb mistake for some reason the was a int fwrite=0; in my cod... (by nickhere)

by idknuttin

What is the standard convention when creating multiple default constructors with the same arguments?

I am making a class in C++ and I need two default constructors with the same arguments. The only argument they need to take is a vector. Depending on the data t...

[12 replies] Last: @MikeyBoy, I just figured out how to do what I wanted using only one c... (by idknuttin)

by Zelante

Help with Do..While and If..

My code seems to be functioning properly but I can't seem to be able to make the terminating part pop up along with "-1" in the program when I input it. It keep...

[2 replies] Last: Ah, thank you so much! I think I understand how it works now. While s... (by Zelante)

by Nickoblack

Stuck at 4 in a row game, checking who is the winner

(First of all I am sorry for any miss spelled in my writting) Hello, I have been programming the little mini game 4 in a row, where i have 6 colums and 7 Row ...

[8 replies] Last: game_model.h: #ifndef GAME_MODEL_H #define GAME_MODEL_H #include <ar... (by globaltourist)

by cosimo

help on a function to compute quantiles

Hi! I have two errors from the code below at the lines starting with int idx: "invalid use of member (did you forget the &?)" and on the line starting with o...

[5 replies] Last: Thank you!!! (by cosimo)

by flamminghot

special characters

int main() { char name ; cout << "please enter your password: "; cin.getline(name, 50); cout << "your password is " << name << endl; retu...

[1 reply] : 1. Use std::string . 2. Check each character 3. #include <cctype> and... (by Duthomhas)

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Beginners - February 2018 (Page 19)