C++

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Beginners - September 2018 (Page 12)

I created a code that determines if a triangle can be formed when the user inputs three side lengths. This is based on the Triangle Inequality Theorem that sta...

[5 replies] Last: @rentandude, I know of no good "work-around", because that is the natu... (by lastchance)

by hacker9876

XOR

find the number of pairs (i,j) such that 1≤i<j≤N and the bitwise XOR of Ai and Aj can be written as a sum of two (not necessarily different) prime numbers w...

[7 replies] Last: Its really shameful to ask on-going contest(Codechef September challen... (by pawan12)

by witchee666

cin boolean

Write your question here. i need to accept true or false as input and split accordingly. i think im missing a concept. Put the code you need help with ...

[2 replies] Last: ty (by witchee666)

by freaknightmare88

most frequent and least frequent character from a input file

I need to write a program that reads a input file and displays the most frequent character and least frequent one. I have looked at examples from other people a...

[3 replies] Last: This is the code that's producing your output: cout << endl << "Lette... (by dhayden)

by josian

Bug in function using String and Find func

I found this fragment of C++ code in a website. Apparently there is a bug in this code. I test all conditions but they work as expected. Can anyone help me with...

[8 replies] Last: The original question was to find the bug in the code. I think the ans... (by dhayden)

by ObiNation00

Segmentation fault (core dumped) error

Hi. Im trying to write a code that will process grade data from a file. The program compiles but when i try to run it I get the error "segmentation fault (core...

[7 replies] Last: Hello ObiNation00, I found that your use of pointers to be the bigges... (by Handy Andy)

by nowy20180820

Find missing lines in file

Suppose we have given two files A and B and we have to find lines that are present in file A but not present in file B and print result to file C Loadi...

[14 replies] Last: You could read a batch at a time from the first file read into an unor... (by tpb)

by Ginnywalker

OST to PST Conversion

For a safe conversion of OST to PST, the users can go with OST to PST Converter Software. With the help of this software, users can quickly recover and export O...

[no replies]

by DeBary

Percentages

How do I add tax in c++

[2 replies] Last: double price, tax, endPrice; //get input from user std::cout << "\n... (by H00G0)

by rhamm5798

BlackJack problem

Hiya I am just trying to learn C++ on my own - I am 56 yrs old and did it yrs ago so now that I am retired I have time to work on this again. My problem is in ...

[2 replies] Last: Hey, thanks a bunch for all of that - - it worked and I am going to do... (by rhamm5798)

by dannyboy13872

passing reference of 2d vector of characters

Hi everyone, So far, I have only used a 2d array for a matrix. I was given the declaration of the vector as, vector<vector<char> > A (N,(vector<char> (N)...

[5 replies] Last: this might be a good place to typedef or similar the annoying double ... (by Thomas1965)

by nowy20180820

Singly linked list various questions

#include<stdio.h> #include<stdlib.h> #include<conio.h> struct node { int key; struct node *next; }; typedef struct node node; void ...

[6 replies] Last: In C you should not cast the return type from malloc. https://bytes.co... (by Thomas1965)

by rajhansk

what is function call overhead?

I was reading about inline function and I came to know that one of the advantage of inline function is that function call overhead doesn't occur, my question is...

[1 reply] : Hi, Do you have Google & Wiki ? The first few hits are informative. (by TheIdeasMan)

by HarGar

Issue displaying Gross Pay as $0.00

Design a Payroll class that has data members for an employee's hourly pay rate and the number of hours worked. Write a program using an array of seven Pa...

[1 reply] : You are reading and updating local variables in main, lines 20-26, you... (by closed account E0p9LyTq)

by poohbear

class get and set

im having trouble with double land::getwidth() { width=wid} the full description of this question is Skill set: Creating a simple class Step 1: Follow along ...

[1 reply] : double land::getwidth() { return width; } (by Repeater)

by ryan157

How do i get my output to look like the expect output sample

Write your question here. My concern is the do-while loop. My output is: Enter the old and new consumer price indices Inflation rate is -0.0390204 Enter t...

[1 reply] : rearrange your while loop. (by SamuelAdams)

by colt

Error with constructor's prototype not found with dyn mem allocation

Hello I recently was trying to copy the content of a vector of the kind "Triangle" to a dynamically allocated array of the same kind. For such, first I creat...

[2 replies] Last: Add Triangle(); inside the existing declaration class Triangle() { .... (by colt)

by ryan157

How do I add a loop to this code

How can I ... 1. Put the logic in TODO #2-4 into a loop (do-while preferably if possible) that asks the user to enter 'y' (or 'Y') if there's more data to be ...

[12 replies] Last: Ok... it runs but it is not giving the output correctly. Example of ... (by ryan157)

by boypetey17

How do I generate random numbers on the heap?

I have no idea how to add "new" to dynamically allocate each point. I want to randomly generate 10 points between -10 and 10 on the heap. The code works, but th...

[10 replies] Last: Thanks for the replies. This is an update. The assignment says I can u... (by boypetey17)

by anasmourad

C++ caching

Hi, I need to store data of a 1MB file in cache, so when I close the application, and open it again, I can find the data. Thank you.

[8 replies] Last: Ganado, a ram disk is a driver program that turns a block of ram into ... (by jonnin)

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