Beginners - C++ Forum - December 2016 (Page 12)

Exchange the values of variables. To swap values

How would an example look like to solve this pseudocode? IF(tmpName2 < tmpName1) Change place on tmpName1 and tmpName2 Change place on name1 and n...

[1 reply] : Your terminology is odd. Perhaps you would like to exchange the values... (by keskiverto)

by bird1234

Problem in fileheadling

How To Get Error message when no user is found not vector etc... #include<iostream> #include<string> #include<fstream> #include<stdlib.h> using name...

[1 reply] : You set the flag = true as an else statement. Consider how your progr... (by MistahMoose)

by newbie456

Please help

How to flip bits of a number in C++? for ex: 5->101 should become 010 which is 2

[1 reply] : Use the XOR bitwise operator (^). http://www.cplusplus.com/doc/boolean... (by AbstractionAnon)

by kinglado

Help with binary serch!!

Hey, I've been asked to write a program with various family members that I would then sort of order. I have succeeded with the program, but now I have to suppl...

[1 reply] : the pseudo code for binary serch is like this: IF middle value of th... (by kinglado)

by Moshi

Turbo C++ Login Program

I made a login program on CppDroid then tried to reconstruct it for turbo c++ 3.2 use, well, i failed. So can someone give me hints on getting this right. H...

[5 replies] Last: Thanks for the answers and references, really helped me understand str... (by Moshi)

by cherault

Solving a simple problem

Dear all, I have a little problem in C++. My objective is the next: I have to count frames (OpenCV), and detect a certain amount of objects, through a ve...

[no replies]

by biwkina

multiset (1,2)

hello guys, how can i find how many times appears multisets each elements?

[20 replies] Last: #kemort - my real problem is that when i input the number sequence i ... (by closed account 48T7M4Gy)

by sk9294

passing ofstream reference

i am trying to write a program that finds files in a folder recursively but i am not sure how to pass ofstream reference when i am running my program it runs su...

[15 replies] Last: A slight variation. Essentially the same code as before, but with two ... (by Chervil)

by moldydip

Trouble saving a string to a file

1. Read the provided plain.txt file one line at a time. Because this file has spaces, use getline (see section 3.8). 2. Change each character of the string by...

[2 replies] Last: The order in which things are sequenced is incorrect. Instead of this:... (by Chervil)

by Hengry

Help with erase function in unordered_map

I just started learning about unordered_map, and from my understanding, it erases the key and the value based on the key. My question would be how I would able ...

[4 replies] Last: I haven't tested my code as of now, but I'm just trying to figure out ... (by Hengry)

by Optimistic Peach

SFML Error with vertexArray

I was wanting to make a 3d Terrain generator, but when I compiled the code below, it just crashed. I'm using CodeBlocks(MINGW) and SFML 2.1; #include <io...

[1 reply] : C++ does not implicitly set declared raw types to 0. If you just say,... (by Ganado)

by crowdiax25

DVD Collection Program

Hello everyone. I'm working on a program that maintains a collection of DVDs. I will post the specifications below, and then the code and errors on the followin...

[9 replies] Last: try: collection.insert(make_pair(title, myDVD)); (by gunnerfunner)

by not a rainbow

Undefined Symbol "true"

Hello everyone. Please, give me a hand. There's an error message which says "Undefined symbol "true" "(line 26) //-------------------------------------------...

[6 replies] Last: I realize that and don't disagree, but me searching for "#pragma argsu... (by Ganado)

by john99999999999999999999

HOW DO I ROUND THE OUTPUT?

while(!fin.eof()) { for(int n=0;n<43;n++) { tempo.statename =temp.name; tempo.admission =temp.order; tempo.density =temp.population...

[3 replies] Last: Then you use this : tempo.density = round(temp.population / floor(t... (by Kabane)

by forta2k

C++ - program which verifies if a number is prime

Okay so my program has to verify if a number is prime, and that number is formed by the number of units of another numbers. Example: for n=4 and numbers 237 23...

[1 reply] : line 13: cin >> x ; // for example x = 1; while( x ... (by ar2007)

by Random68

A basic program doesn't compile

To everybody that will read this, On an AppStore compiler I typed this basic program, 1# include<iostream> 2 int main() 3 { 4 std::cout<<"hi there!"...

[5 replies] Last: No, I use the free version, although I am contemplating purchasing the... (by lastchance)

by Xrey274

Key Press Detection

I am new to programming. And i am learning through tutorials and making little programs myself.But i've faced a problem.I am using Code::Blocks to program in C+...

[18 replies] Last: Thanks ! (by Xrey274)

by randflec

Minesweeper

my code is not working correctly and i need help writing int main. Any help is appreciated.

[2 replies] Last: Line 34,35,37,38: Why are you taking % 12? You're board is only 8x8.... (by AbstractionAnon)

by john99999999999999999999

CAN YOU FIND THE ERRORS?

Write your answer here. int hailstonelength(int n) { int length = 0; while (n >= 1) { length++; if (n % 2 == 0) n = n / 2; if (n % 2 == 1) n =...

[1 reply] : #include <iostream> // <=== add using namespace std; // ... (by lastchance)

by weirdo123

while

hi. I am a bit confuse about the while function. for fstream, input files what does this mean? ifstream input; int x; while(input >> x) { //stat...

[3 replies] Last: thanks for replying ^^ (by weirdo123)

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Beginners - December 2016 (Page 12)