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Beginners - February 2020 (Page 11)

The is a digit figure 1 printed in every line

The output is not exactly as it should be. Here is the correct output: Count to what value? 4 Starting count, level 1: val == 4 Starting count, level ...

[4 replies] Last: Thanks to all. I finally got it right and got the correct output. (by Bopaki)

by StrangerThings

inf result to calculate standard deviation

"Write a program that takes its input from a file of numbers of type double. The program outputs to the screen the average and the standard deviation of the num...

[1 reply] : double n1, n2, n3, n4, sum = (n1 + n2 + n3 + n4), Variables don't ... (by Ganado)

by MyOnlinePersona

how to access hash table from all other classes

I cant post code since it is a lot, but basically i have a hash table class, created in hash.cpp and hash.h and then a create the table in the main.cpp using h...

[4 replies] Last: Thank you, ive passed in the hash table to the function itself and ha... (by MyOnlinePersona)

by moe 6734

counting

Solved

[10 replies] Last: You’re absolutely right Duthomas wet markets don’t have friends.... (by againtry)

by DrCoke21

Creating a list using <fstream> and nested if/else

So I am doing a homework assignment but I do not understand if I am doing it right or absolutely wrong on how I am using the <fstream> with a while loop and nes...

[6 replies] Last: I would like to thank everyone for the useful advice on the usage of f... (by DrCoke21)

by Vaughnpkk

Reading float type from a file and using them in formulas (1,2)

I am trying to read numbers in two columns that are separated by a space from a .txt file and use them in formulas within my code and output the results into an...

[35 replies] Last: You guys rock!! Perfect score!! (by Vaughnpkk)

by Zainyorkshireman

Problem With Tic Tac Toe Function

Hi, there's an issue with my void input function When it's called, i ask the user for a choice for where they want to go on the board, i want to then input t...

[5 replies] Last: Hello Zainyorkshireman, I came up with this as a start. You may fine ... (by Handy Andy)

by TheCodingSnake

Problem with while loop

Hello, I'm at the very beginning of learning C++. I'm having a difficult time to understand why my while Loop doesn't work. I wrote the following Code to bett...

[6 replies] Last: @Repeater I just noticed it too. I'm struggling with the {}. Trying t... (by TheCodingSnake)

by stoneJax

difference

I am in the process of trying to create a function that can find the difference of two sets. It seems to work on some test runs but not others. For example:...

[11 replies] Last: To avoid any problems with memory leak or dangling reference just don'... (by ne555)

by dorlow

Need advice on how to learn c++

So, a few months ago, I signed up for an online university to learn how to program. I'm in the first programming course and I'm not happy at all the way they'r...

[2 replies] Last: edx is really nice as well. (by rjphares)

by phazed99

Pointer-offset notation??

I got the question that I have to do but I missed the first day of class and have idea what is going on. a. Define a function strLength() to calculate the nu...

[6 replies] Last: You're close. Just do const char* b = "hello"; instead. Notice the dou... (by Ganado)

by stewiefangirl

I can't figure out how to start this.

Hi I have a problem I was assigned and I can't, for the life of me, figure out how to even start this. The problem is : The screen size of a TV is given b...

[1 reply] : Pythagoras: diagonal squared = length squared + width squared #includ... (by againtry)

by Lodyce

I cant get one of my lines to dispay

I'm a new programmer in my first class. I am supposed to write a code that calculates gross/net pay from hours and hourly rate. When you run the program it star...

[2 replies] Last: thank you I just quit out of microsoft visual studio and opened up new... (by Lodyce)

by mrpear2020

Which method is more efficient to merge strings?

Hello gurus, here is a question from an exercise: Requirement: merge content of two strings. First method must use "new char". The second method should concaten...

[3 replies] Last: the top one is exceedingly bad, not just for the dynamic memory, but t... (by jonnin)

by BigWalrus1

Srand and rand

I am working on an assignment where you have to generate 2 random numbers and then find the sum of those 2 numbers. Every time I enter a seed to initiate, the o...

[4 replies] Last: dutch, I now see the issue! Thank you for posting a go-by code as well... (by BigWalrus1)

by pajaPatak

Rabbin Karrp iplementation using hash problem

I have written hash.h file, that I want to use for implementation of RK algorithm. So far I have wrote this. #ifndef HASH_H #define HASH_H #include <vector>...

[9 replies] Last: yes, I see that one. but where do you define int Hash(string)? (by jonnin)

by Volapiik

overloading operators issue with addition

Having issues with adding objects. It seems to work when adding two, ex: 2.34 + 34.57 = 36.81, but fails when adding 3 or more ex: 6.78 + 9.81 + 4.59 = 79.59 <-...

[2 replies] Last: previous post had a diff issue that was solved. But I figured out this... (by Volapiik)

by Elektromann

Can I use vector as pointer?

I'd like to do something similar int create(int number, vector<string>* status) { vector<string> status_list; if(number < 10) { stat...

[3 replies] Last: jlb - It's works for me, than you for answer. (by Elektromann)

by Foxel

Cout of unsigned char

I'm using Visual Studio 2019 : why does this command do nothing? std::cout << unsigned char(133); It literally gets skipped by my compiler (I verified ...

[1 reply] : Hello Foxel, I ran this through my VS2017: #include <iostream> #inc... (by Handy Andy)

by Bronislaw

Printing edge/corner coordinates of triangulated convex/concave polygon in the right order

It's about convex and concave polygons, triangulation is already done: every coordinate pair of x,y lies at an edge/corner. Polygon array consists of n trian...

[1 reply] : Solved in this thread: http://www.cplusplus.com/forum/beginner/267765/ (by Bronislaw)

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