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Beginners - March 2015 (Page 22)

Hi guys, First and most important, I thank you for your time and knowledge. I don't want any code, just need an explanation, or to know what I should read and ...

[1 reply] : Your variables obj and val are declared in main() . You try to a... (by fg109)

by macboy49

Pointer Help Please

What exactly is the difference between these two? If I try to cout each one I get 0 and 5 respectably. So does the first one initialize an array of 5 elements a...

[1 reply] : I'm new to C++ and VERY new to pointers... but I'll take a stab at it.... (by pearlyman)

by LaimisG

two-dimensional array

Hello, someone can write this program for me? Given two-dimensional array T(m,n), that element values are different, primary data is stored in a text file. Fo...

[3 replies] Last: primary data is stored in a text file. If it's stored in a text file... (by pearlyman)

by rhenzo2015

PLEASE I NEED HELP! SOME CODES WOULD DO!

It should have a password authentication before it display the main program (use IF ELSE) 1. Password must not be showing upon typing. It should show asterisk ...

[2 replies] Last: You mean like... function name(){ for (int x=0;x<4;x++){ cout - ent... (by pearlyman)

by closed account oGhfSL3A

std::vector erase seg fault

I tried a few times to create an example program to show the problem I'm having, but they all worked completely fine. I only seem to get a seg fault when I'm do...

[1 reply] : you are missing a proper assignment operator for the `component' class (by ne555)

by catpokemon

Code won't edit/overwrite the text file, even though everything appears to be working correctly.

edit: ignore this initial post. Check my latest comment - the issue below is resolved. Hello all. The file is opening and is outputting numbers, but it isn't...

[7 replies] Last: I hate to bump, but I'm going to bump. This is due tonight and my teac... (by catpokemon)

by Orval

toupper help

#include <iostream> #include <string> #include <ctime> #include <cstdlib> #include <vector> using namespace std; int main() { vector<string> Word...

[2 replies] Last: That makes sense, but still confused on how to use toupper's statement... (by Orval)

by welcometomyworld

Problems with overloading operator

I am getting an error on line 104. This line is suppose to add the coefficients of two polynomials. p .coefficient = a1.p .coefficient + a2.p coeffici...

[3 replies] Last: the file name was "ADT". I'm guessing when I include the header file, ... (by welcometomyworld)

by Aaron Vienneau

Input into a String

Hello, I'm curious as to the internal workings of strings as it relates to input. When a user types into a program and the input goes directly into a string ...

[3 replies] Last: how do strings allocate just enough space for the internal character ... (by Yanson)

by abc456

Please help me fix this program?

I'm extremely confused on this assignment I've been working on. I'm completely stuck on how to get print() and printRoots() to accept two different sets of vari...

[no replies]

by abc456

How can I fix this code so the function countChars accepts a character as parameter?

I'm not really sure what my professor wants this character to do? This is the instructions: Write a function (countChars) that accepts a string and a character ...

[3 replies] Last: Smac89 I understand most of what you said. only I'm unsure what to mak... (by abc456)

by KickAz

CLASSES - ISO C++ forbids in-class initialization of non-const static member 'pi'

Hello I have a little problem I don't undestand what the problem is can someone explain to me? error: ISO C++ forbids initialization of member `pi' error: ma...

[2 replies] Last: Prior to C++ 11, in order to initialize a variable in your class, you ... (by Aaron Vienneau)

by closed account E3h7X9L8

help with backtracking

read n numbers and a number a .generate all possible numbers from numbers n lesser than a example: for 0,2,3 and a=300; 20,200,220,202,300,302,322 etc

[4 replies] Last: ty for help i did it :D #include<iostream> using namespace std; int ... (by closed account E3h7X9L8)

by closed account SECMoG1T

tokenizing strings

i need a hand here, a got this function that is supposed to tokenize pipe "|" dilimited words from a larger string, it should be working fine according to my l...

[2 replies] Last: Straight from heaven , that's what i needed thank you very much @fg109... (by closed account SECMoG1T)

by mighty asker

Algorithms for 2D arrays

Hello. Would you recommend me some good sources of algorithms for 2D arrays (merging, rotating, deleting rows, etc)? P.S. What's the right way to declare an 2D ...

[4 replies] Last: And same for vectors? (by mighty asker)

by Vandalism

Linked Lists(Nodes)

I want to add a node in the beginning. Sample Program: 1. Create Lists 2. Add at the beginning 9. Display Enter choice: 1 How many nodes you want to in...

[2 replies] Last: hey your data is not going to linked list. it is being stored in array... (by amarjit86255)

by Vandalism

Create Lists(Nodes)

I want to input nodes and it's on void create() but it won't output on void display() It gives a message like this: Unhandled exception at 0x00EC966B in Proj...

[3 replies] Last: here ... struct Node { Node(int i) : info(i), next(nullptr)... (by closed account SECMoG1T)

by Aaron Vienneau

How exactly does const* char work?

Why, exactly, does code like the following work? #include <iostream> struct Candybar { const char* name; double weight; int calories; }; ...

[3 replies] Last: This always trips me up, so I thought I'd ask so I had a reference at ... (by Aaron Vienneau)

by sirrunrun

trouble when changing from c++ to c

this is the code from the question of poj1760~but i dont know how to changing to C program http://poj.org/problem?id=1760 #include <string> #include <cstri...

[5 replies] Last: The algorithm is using std::map because it's convenient in C++. Creati... (by dhayden)

by hmlwin

Wrote program to sum terms, but can't get it to give me the correct summation...

I wrote this program to sum a user-defined number of terms for the series 1-1/2+1/3-1/4+1/5-... But for some reason it's not working. I have went line by line ...

[3 replies] Last: To solve a problem like this, it's often helpful to look at easy input... (by dhayden)

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