Beginners - C++ Forum - July 2019 (Page 8)

Printing out the contents of a vector

how to print out the contents of the vector? I have stored the contents of a file into a vector that also connects to a class, is it easier to print out a vecto...

[1 reply] : #include <iostream> #include <string> #include <iomanip> #include <ve... (by JLBorges)

by botter123

How to Solve Prime modullo

x^2 = a mod p y^2 = b mod p the known values are x,y,a,b . we have to find p . p is a prime and ranges from 2 to 10^9 . I could not get any idea to solve . ...

[8 replies] Last: Homework is about learning to program. Competition puzzles seem to be ... (by keskiverto)

by Zainyorkshireman

Confused

Hi all I'm really struggling to wrap my head around this. I am going through the word jumble game and this section is causing me a lot of problems enu...

[4 replies] Last: Ok, thank you again for your help, it's much appreciated (by Zainyorkshireman)

by saturnz

Comparing ints within a while loop (maximum and minimum)

Currently I am working on a project for uni (so just tips please) about ordering desks. Currently I've been stuck on how to make it display the least expensive ...

[8 replies] Last: Alright, got it fixed! Sorry for the late response, I've been really b... (by saturnz)

by jonnin

parity problem

the properties of xor ... i believe you can count as you go. pick a number. insert it: 3. that is 0011 in a 4 bit int. e is 1, and o is 0. pick another num...

[19 replies] Last: Now that I see the proposed topic of conversation, I'm not particularl... (by dutch)

by Unspoken

Passing method pointer or function pointer as a template argument.

Hello, I have a class template: template<typename Callable> class MyClass { void CallFunction() { Callable(); } }; This works fine wh...

[8 replies] Last: As far as performance for your requirements go, do not rely on opinion... (by JLBorges)

by cauchylouis

Using or runnig a written code

I found a code that is shared on the internet performing my demands. I downloaded it. It is a folder that includes some cpp and h files. So how can I run this c...

[2 replies] Last: and it depends on what it was. It may be unix code, it may not have a... (by jonnin)

by xelly

Logic/math error?

Hello, I recently started an intro. to C++ class and am having some issues with a few of the online assignments. My code compiles but is not returning the expec...

[5 replies] Last: The problem is in your math. First: after marking up the price of an... (by dhayden)

by jonnin

Take large input

you need a third party large integer class, such as provided by boost, to handle huge numbers. however, every problem like this I have seen has a solution wher...

[2 replies] Last: @jonnin is absolutely correct you don't need to put whole question he... (by lazybot)

by Xanadu4ever

Input file stream: "Incomplete type is not allowed"

Alright support personnel, Going through my file streams and I am intending to open a file for reading integers as the exercise details..... well I'm using t...

[10 replies] Last: Thanks Gentlemen. Really appreciate the extra details you gave for fi... (by Xanadu4ever)

by DarkParadox

Exception

I dont understand try-catch-throw thing.. Please somebody explain it to me Thanks..

[4 replies] Last: Another example. #include <iostream> #include <string> #include <ex... (by dutch)

by adam2016

Grammars and parsing

Hey guys, I'm reading Bjarne's practices and principles and decided to attempt an exercise, the exercise is write a basic grammar to evaluate an English langua...

[3 replies] Last: Thanks guys, Dutch I will check out them links :) Andy thanks for th... (by adam2016)

by unknown1412

what is the function of cin.ignore and cin.get at the same time?

what is the function of cin.ignore and cin.get at this program? location : 57-58 #include <iostream> #include <stdlib.h> using namespace std; char s...

[5 replies] Last: oh ok guys thx, i understand a litle bit (by unknown1412)

by kijsee

Random dice game c++ help

Hi! I'm new to programming and need some help looking over the code. There are a few things that need to be included (see list below) and I'm wondering how ...

[2 replies] Last: *The dices can be symbolized by predefined randomfunction. No need fo... (by closed account DLw0Djzh)

by Mur54

Need help for basic code

Hello, there is my program : #include <iostream> int main() { int currVal = 0, val = 0; if (std::cin >> currVal) { int cnt = 1; ...

[4 replies] Last: Hello Mur54, Good use of code tags for just starting here. Lets pick... (by Handy Andy)

by Bopaki

Why is this program not printing out the list

When I try to print the program I get nothing Enter a list of integers ending with -999. 12 45 76 89 -999 When I press "enter" to print the list I get...

[4 replies] Last: Thank you very much coder777 It worked first class after rempving *fir... (by Bopaki)

by CodeNovice01

Can someone please help

IF you run this code you will understand what I am trying to say. The two columns that are displayed when you run this code is distance and time. The time colu...

[14 replies] Last: Values are made up, bogus and simplified, like in most homework. That ... (by keskiverto)

by Bopaki

Why am I getting nothing printed by this program

When I try to print the program I get nothing Enter a list of integers ending with -999. 12 45 76 89 -999 When I press "enter" to print the lis...

[1 reply] : Do not doublepost. First thread: http://www.cplusplus.com/forum/beginn... (by keskiverto)

by Swag

Data manipulation

I was reading this post on the net about Data manipulation and it said “programs produce results by manipulating data(writing, changing and reading)” Could ...

[7 replies] Last: @dutch I think several of us are arriving at that same basic point - t... (by Niccolo)

by CodeNovice01

Reversing numbers on a table

I have this code completed, but whenever I run it, the time is backwards. I need it to output 49-10 not 10-49 #include <iostream> #include <fstream> #in...

[3 replies] Last: This is a duplicate post....and, what @lastchance is saying is that th... (by Niccolo)

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Beginners - July 2019 (Page 8)