C++ () is a general-purpose programming language created by Bjarne Stroustrup as an extension of the C programming language, or "C with Classes". The language has expanded significantly over time, and modern C++ now has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation. It is almost always implemented as a compiled language, and many vendors provide C++ compilers, including the Free Software Foundation, LLVM, Microsoft, Intel, Oracle, and IBM, so it is available on many platforms.C++ was designed with an orientation toward system programming and embedded, resource-constrained software and large systems, with performance, efficiency, and flexibility of use as its design highlights. C++ has also been found useful in many other contexts, with key strengths being software infrastructure and resource-constrained applications, including desktop applications, video games, servers (e.g. e-commerce, web search, or databases), and performance-critical applications (e.g. telephone switches or space probes).C++ is standardized by the International Organization for Standardization (ISO), with the latest standard version ratified and published by ISO in December 2020 as ISO/IEC 14882:2020 (informally known as C++20). The C++ programming language was initially standardized in 1998 as ISO/IEC 14882:1998, which was then amended by the C++03, C++11, C++14, and C++17 standards. The current C++20 standard supersedes these with new features and an enlarged standard library. Before the initial standardization in 1998, C++ was developed by Danish computer scientist Bjarne Stroustrup at Bell Labs since 1979 as an extension of the C language; he wanted an efficient and flexible language similar to C that also provided high-level features for program organization. Since 2012, C++ has been on a three-year release schedule with C++23 as the next planned standard.
A user types a word and a number on a single line. Read them into the provided variables. Then print: word_number. End with newline. Example output if user entered: Amy 5
Amy_5 #include <iostream>
#include <string>
using namespace std;
int main() {
string userWord;
int userNum = 0...
When I took such courses I suffered due to the fact that I could not code/program. My friends and professors knew how to make 1-D or 2-D grids for heat transfer problems, writing calculus formulas and differential equations in code. How can I learn this? I already know how to solve these...
I need to normalize an array, I find the max value which can be any integer. I have to output this number using cout and represent it as 'x' how ever many times. The catch is I can only have a max amount of 60 x's. If my max is 500 I need to display it as 60 'x' and normalize my whole array to...
I ran into some trouble with a C++ question. I need to make a program that will run like this:
Example run 1:
How many names do you want (max 99)? 5
Enter name #1: Adam Apple
Enter name #2: Betty Boop
Enter name #3: Charles Chaplin
Enter name #4: Debbie Dali
Enter name #5: Elaine Eggbert
What...
1. Homework Statement
In the third constructor in the second snippet of code, I keep getting a compiler warning that hours, milli, seconds, and hours is not initialized in the constructor. Should I just set them equal to zero within that constructor? I have never worked with multiple...
Homework Statement
I am writing a program that will calculate the average and standard deviation given data by the user. The data is entered into a vector. The size of the vector is also determined by the user.
When the user enters the size of their vector, they need to enter a positive...
So I'm trying to do this problem:
Write a for loop to populate vector userGuesses with NUM_GUESSES integers. Read integers using cin. Ex: If NUM_GUESSES is 3 and user enters 9 5 2, then userGuesses is {9, 5, 2}.
Here is my code so far...
#include <iostream>
#include <vector>
using namespace...
Set hasDigit to true if the 3-character passCode contains a digit.
#include <iostream>
#include <string>
#include <cctype>
using namespace std;
int main() {
bool hasDigit = false;
string passCode;
int valid = 0;
passCode = "abc";
if (hasDigit) {
cout << "Has a digit." << endl;
}...
I'm in an introductory course for c++ and I'm trying to make a program where it analyzes a url link and do string searches within it. For example if I were to put in https://www.wikipedia.com , it would say, "You've requested the Wikipedia- The Free Encyclopedia page."
My professor told us...
I ran into some problems when trying to finish my assignment. The objective of this assignment is to create a block of code that will keep asking the user to input numbers until the input is 0. And if the user input 0 for the first value it will say "No data submitted!". I got all those parts...
Homework Statement
Here's my problem. I am working with ROOT which uses C++ and I am making 3 different graphs. This particular part of the code is for the parabolic motion with density calculation.
The problem is, that I follow the rules in the powerpoint provided to me, the other two of my...
I have three problems that I've been trying to tackle for a while now.
1) I have a code for the bisection method. I would like to use TLine *line = new TLine function to create the lines that you normally see in the bisection method.
These lines from a to F(a) are the ones I am talking...
Homework Statement
I'm using ROOT (c++) to graph a numerical representation of the equation of motion.
For simplicity, I am using initial velocity = 10 and initial height = 10.
change in time = 0.05
so we find velocity by V_n = V_(n-1) -9.81*0.05
For some reason, this code is not giving me a...
Define a function CoordTransform() that transforms its first two input parameters xVal and yVal into two output parameters xValNew and yValNew. The function returns void. The transformation is new = (old + 1) * 2. Ex: If xVal = 3 and yVal = 4, then xValNew is 8 and yValNew is 10.
My code...
Homework Statement
This is the assignment instructions:[/B]
In C++, code a search algorithm that searches a list of strings for a particular song. The searching algorithm will have two inputs: the playlist, which is a string array that contains a list of songs in alphabetical order; and a...
Homework Statement
[/B]
1. I've been tasked with forming a 10 x 10 matrix with elements 0, 1, 2, 3, 4, 5,...
and have it display properly.
2. Then, take this matrix and make a 2d-histogram out of it.
Homework Equations
Here is my code
void matrix6( const int n = 10)
{
float I[n][n]; //...
Hi all, I am looking to learn C by myself since it is a programming language that is used in my micro controllers class that i am going to take during the upcoming Spring semester at my university. I was wondering how i should go about doing this? I was thinking of using book The C Programming...
Hello, I have a code in C/ C++and I have just learned I am going to need it in a version compatible with Free Pascal. I would never bother anyone with it but as I need it pretty quickly and my knowledge of Pascal is very poor I would spend ages rewriting this and it probably woudn't even work at...
Homework Statement
[/B]
See this link for the given assignment.
http://eilat.sci.brooklyn.cuny.edu/cis1_5/HW5i_C.pdf
note: on the last page the output aa4bcdd0cc1 is actually supposed to be aa3bcdd1cc1c.
Homework Equations
I have no idea why my encoder function doesn't work. No matter how...
Homework Statement
I have to find GCD or HCF of two numbers.
Homework EquationsThe Attempt at a Solution
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int i,m,n,temp;
cout<<"Enter two numbers\n";
cin>>m>>n;
do
{
if(n>m)
{
temp=n;
n=m...
Homework Statement
My Program is not showing the sum value or not returning it. A blank space is coming.Why that is so?
Homework Equations
Showing the attempt below in form of code.
The Attempt at a Solution
#include<iostream.h>
#include<conio.h>
Prime_Sum(int arr[30][30],int m, int n);
void...
Hi, I'm having difficulty with this program in a textbook. The instructions are as follows:
Overload the + operator as indicated. Sample output for the given program:
First vacation: Days: 7, People: 3
Second vacation: Days: 12, People: 3
This is the code that follows
#include <iostream>...
Your program will ask the user for a text string to encrypt and a key (key). You will loop through the
string setting left to the first character and right to the second, and encrypt this with 3 Feistel rounds, and
output the text as hexidecimal. Continue to loop through the string using the 3rd...
#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<string.h>
void main(){
clrscr();
char a[10],b[40];
cout<<"Enter sentence\n";
gets(a);
cout<<a ;\\ How to reverse here?
getch();}
I don't know the proper code how to do the program of reversing each word in a sentence.
How does...
I'm supposed to make a simple logic calculator based on the following requirements:
1. The user can use either capital or lower case 'T' and 'F' in their expression.
2. Use either a ';' or '=' to indicate the expression should be evaluated immediately.
3. The program should not exit when it...
Write a C++ program based on the following scenario:
You customer wants you to design and then build an online store:
Abilities the customer wants in the system:
Track products and related information.
Track customers, especially what the customer owes
Identify a product that will be for...
Homework Statement
"Calculate the max, min, count, average, and standard deviation (std dev) of a set of numbers.
The formula for average is:
average is sum divided by count
The formula for standard deviation is
stddev is the square root of the variance
The formula for variance is
variance is...
1) Create a few tweet abbreviations that can be decoded. Add support for abbreviations.
2) For abbreviations that do not match the supported abbreviations, check for common misspellings. Provide a suggestion for correct abbreviation along with the decoded meaning. For example, if the user...
1) Calculates the number of times the sum of the randomly rolled dice equals each possible value from 2 to 12.
2) Repeatedly asks the user for the number of times to roll the dice, quitting only when the user-entered number is less than 1. Hint: Use a while loop that will execute as long as...
Write a program that let's a user enter N and that outputs N! (meaning N*(N-1)*(N-2)*...*2*1). Hint: Initialize a variable totalValue to N, and use a loop variable i that counts from N-1 down to 1.
#include <iostream>
using namespace std;
int main() {
int totalVal = 0;
int userInt = 0...
The following incomplete program should compute a student's total course percentage based on scores on three items of different weights (%s):
20% Homeworks (out of 80 points)
30% Midterm exam (out of 40 points)
50% Final exam (out of 70 points)
Suggested (incremental) steps to finish the...
Write a “C++” program to read any integer number and print each digit into word.
I went like this
# include <iostream.h>
#include <conio.h>
void main(){
int a,b,c,d;
clrscr();
b=a
cout<<"Enter any number"<<endl;
cin>>a;
c=a%10;
d=a/10;
I am not getting further logic.
someone was saying for loop...
Hi, I am trying to solve the problem of finding eigenvalus for a general square symmetric matrix with the QR algorithm.
I have understood that this task is much easier if the matrix is in an Hessemberg form, so I have implemented a function that does that with the Housholder method, but I can't...
I am just getting into C++ and I would like to ask you guys for some help regarding transferring variables form one function to another. Is there any way I can declare a variable such that it can be referenced and changed throughout all the programs functions? Thanks.
hi Guys
i wrote a insertion sort code which is
#include <iostream> /*Waver*/
using namespace std;
int main()
{
int n,i,m;
float a[100],k;
cout<<"enter the amount of number";
cin>>n;
for(i=0; i<n; i++)
cin>>a[i];
for(i=1; i<=n; i++)
{
for(m=1 ; m<=i; m++)
{
if(a[m]<a[m-1])...
How hard is c++ debugging compared to c?
What do you think o f the sentence:
"It s easier to shoot your foot in c. In c++ it s harder, but when you do, you blow away your whole leg"?
Is it really hard( considering the fact code isn t "context free" and it may vary from compiler to compiler, it s...
I have the following code for operations on polynomials in C++, I get plenty of errors which I want to rectify, here's the code:
#include<stdio.h>
#include<math.h>
template<class T> class list{
protected:
int number;
T** item;
public:
list(int n=0):number(n), item(n ? new T*[n]:0){
} //...
Hi everyone... I'm a communication system engineering student and in my university we use studying Java. Now, for this summer, when I ll have free time, I was thinking about doing some practice with programming and maybe studying a new language, such C++( it s still a widesprrad language and I...
Dear Physics Forum advisers,
I am trying to learn the C++ programming language as I need it for my upcoming research in the theoretical computing and cryptography. This is my first time learning the programming language so I am seeking two books (I prefer to learn from the books than using...
I completed the first year of grad school in physics and then contemplated returning to get the master's or just drop out. I had some prior experience using C++ and C# and was getting interviews for C# developer roles, but could not pass technical interviews since I failed questions on data...
I have an official LAPACK example from here:
https://software.intel.com/sites/products/documentation/doclib/mkl_sa/11/mkl_lapack_examples/dsyev_ex.c.htm
It compiles and runs without errors or warnings after using
ludi@ludi-M17xR4:~/Desktop/tests$ gcc -Ddsyev=dsyev_ -o sylapack sylapack.c...
I need some help in optimizing a code with a prompt yes/no...My problem is that if I mistype within the loop for r some character (let's say I'm missing the number 8 on the keyboard for u) the program gets into an infinite loop.
Do you know some way that I could solve this problem? Like printing...
I am trying this problem on CodeChef: Just a simple sum
My task is to evaluate:
$$\sum_{i=1}^n i^i \pmod m$$
Following is the code I have written:
#include <iostream>
using namespace std;
typedef long long ll;
ll modularPower(ll base, ll exponent, ll M)
{
ll res = 1;
while...
Alright, so I programmed a fractal in emacs and used the terminal on my mac to compile it and it compiles and everything but it outputs the coordinates. I want to output a image from my fractal program so could you guys help me out with that? Any advice would be awesome