Beginners - C++ Forum - December 2016 (Page 9)

by razvanpetrescu1611

Question

how should i write a program wich reads a number form keyboard?

[1 reply] : Please do not double post. (by Thomas1965)

by razvanpetrescu1611

Razvan

How should i read a number from keyboard??

[1 reply] : http://www.cplusplus.com/doc/tutorial/basic_io/ (by Thomas1965)

by james dean

Value Swapping from Function Returns

Can get names to swap values with case 7 and 11. Building a roll-and-move style boardgame for a final project and the stipulation for case 7 and 11 has you s...

[no replies]

by DC124421

Repeat Code

Hello. I'm having problems figuring out how to continuously ask the user to input age, if the age entered is below 0 or above 150 (line 16 to 24). Also if I wan...

[1 reply] : Line 24: while (age < 0, age > 150); should be: while (age < 0 || a... (by Norm Gunderson)

by Siv

Printing out in columns using a for loop

Hello everyone, I've been spending hours trying to figure this out, but haven't found any solution to my problem yet, so I thought it might be worth asking h...

[5 replies] Last: You're welcome. No need to apologise, I only found it because I knew i... (by Chervil)

by Kevin S

For Loop

Thank you for your time and explanation here guys. I don't understand how it outputs K from 1 to 12 then 123 in this code... #include <cstdlib> #include ...

[8 replies] Last: Thank you Kemort! (by Kevin S)

by Kevin S

Array question

Hello all, some questions about the array here. What's the purpose of make the mode array = 0? then mode = 1? Thanks for your time. for (i = 0; i < 2...

[2 replies] Last: Thank you Integralfx, do we have to set array to zero every time befor... (by Kevin S)

by sairamganti

Help, my code keeps crashing with a code 3 on code blocks

I was trying to learn c++ and this piece of code keeps crashing again and again, any help is appreciated. P.S. I am completely new to programming... P.P.S I in...

[1 reply] : Well, I'm not sure what the goal is here. There is a lot of use of poi... (by Chervil)

by TimmyFangs

Letter frequency counter

I managed to write this with not much problem. I work in a school Supply store right now and people are always coming in needing to know how many packs of lette...

[5 replies] Last: Thank you all for the suggestions! I'm not familiar with Map. I'll hav... (by TimmyFangs)

by JunTioh

need help ! How to update the function ??

#include<iostream> #include<iomanip> #include<cmath> using namespace std; char ray = { 0 }; //void printForm(char ray , int row, char column); void...

[9 replies] Last: I get it ! Thanks for your help AbstractionAnon ! (by JunTioh)

by mrsh

Matrix Exponential

I define my 2D matrix as vector <vector < double> > MXd2 and i want to solve exponential matrix, can I used this https://eigen.tuxfamily.org/dox/classEigen_1_1...

[2 replies] Last: Putting aside the the matrix being upper triangular for a second, why ... (by closed account 48T7M4Gy)

by Archy

How to use ONE variable for saving TWO results of calculations

Good morning everybody, as I am new to the forum and this is my first post, I would like to introduce myself beforehand. I am an IT specialist trainee in app...

[8 replies] Last: Using structs: #include <iostream> #include <cmath> struct HipRoof ... (by closed account 48T7M4Gy)

by biwkina

binary representation

how can i print the representation of number in any-bit binary complement code?

[5 replies] Last: Input example Sample 1 5 8 Sample 2 -5 8 Output example Sample 1 0000... (by biwkina)

by Addeeralix

Nan error

Hello, this is my first topic here. I start lesson c++ with a book, and i find this exercie: Write from keyboard a program who read a real numer x, and show on ...

[5 replies] Last: Thank you guys, i will learn about local and global variables in the n... (by Addeeralix)

by IQRAHMAN ISMAIL

MULTI "WHILE"

how to rewrite what we enter?

[1 reply] : What do you mean? Ask the user to input a value if it isn't correct? (by Hengry)

by Blanchdog

string stream issues

I'm writing a program that uses a while loop to repeatedly create objects with multiple variables within them. To do this, I use a file stream to read lines fro...

[1 reply] : There are two issues here, one you didn't ask about. The first is the ... (by Chervil)

by jesseb96

Validating Status Code Input

I'm having difficulties figuring out this block of code. I want to have the user input A, S, or, Y as the status code, and if incorrect to loop and display a...

[5 replies] Last: Here is a starting point. You can extend it by using toupper for case ... (by closed account 48T7M4Gy)

by nvadr

Get process IDs by Name w/ exclude IDs

I am not really sure how to start or word this. I managed to find how to get the process ID by name, but i am having a new dilemma. I need to get the proc...

[no replies]

by longberns

String encoding/decoding

This is what i intend to do: Ask the user to enter any string, encrypt it with rot13(shift character 13 places). All characters are permitted. After every fi...

[4 replies] Last: Thanks @lastchance. This was the magic int key = ROT13; for (s... (by longberns)

by Monte211

Parsing a text file for a DVD project

Hey guys, I'm having trouble getting some information to parse properly for the code below. I'm a novice so I may ask dumb questions. My input file looks ...

[9 replies] Last: Last night after we had talked, system ("pause") wouldn't compile.... (by Monte211)

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Beginners - December 2016 (Page 9)