What is similar to fscanf in c++?

ifstream::operator>>(Type)

Any idea on how to make the console look beautiful on codeblocks? Aside the default black background and white text ?

Hi guys Which tool is used to develop C++ Programming ?

Hi guyz How can read a text file & put the data of that to a structure? (c++)

Yeah this makes sense, if you initialize it with some random value, lista is not a nullpointer and the rest should work just fine (but this approach also wouldnt work for doubly linked lists)

Ps meaning

Then how how to convert the below syntex to c++? fscanf(file pointer, "\n%c %s", & cs.letter, cs.code);

Good afternoon everyone, sorry to bother you, I need help. Maybe someone knows how to expand the matrix by one row in C. For exemple : In first 1 2 3 4 5 6 Line to add: 7 8 9 And in the end 1 2 3 4 5 6 7 8 9 I hope that someone will be able to suggest a way. Thank you for attention

I want to understand one subtle thing I red about pointers in C and i understood the idea but: int* pc, c; pc = &c; c = 3 printf("%d", *pc); // 3 This works like expected but why below example not produces error? *pc = 2 I know what it does but cant understand why in such way dont we have here 3=2? How we can asign 2 to 3? I expected error

i want to write a programm that input k and output the k'th nu,bers of this number" 12345678910111213..." without string or arraye

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i want to write a programm that input k and output the k'th nu,bers of this number" 12345678910111213..." without string or arraye

okay, and what problem are you having?

do you know modulo operator?

the number is huge

number is too large for long long?

you can iterate single chars in a for loop

do you get input number from cin?

the number is huge

but not sure where you want to store it if you don't want to use arrays

exactly

yeah exactly, you can't...

Hi! So, I'm practicing pointers and LinkedList in C. I have this function "add", for adding a new node to the LinkedList. I initialize the linked list struct as null: Node *list = NULL Then I pass this Node to the add function which has the following definition: void add(Node *n, int value); First I create the struct representing the first node, called p. Node *p = malloc(sizeof(Node)); p->value = value; p->next = NULL; So far, so good. The second thing is checking whether the received pointer is null or not, so as to define it as the first item on the list. if (n == NULL) { n = p; return; } This is where I don't get it. The address of p is set to n, but just within the scope of the function add. When I get back to main, the address of *list is still NULL. I'm not passing it by value, but by reference, but it's clearly not working and I'd like to understand why. Ty. I'll try to send the whole code on a link.

Good evening, I'm sorry to bother you. I had a question about how to combine the two matrices. For exemple A=[1 2 3 4 5 6] B=[ 5 9 3] AB= 1 2 3 4 5 6 5 9 3 I was advised above the dynamic arrays, I tried to understand but so far failed. Maybe there is an easier way to combine them? Thank you for attention

this is the problem: alex has written a programm that prints numbers from 1 to 5000 in deifferent lines but unfortunately his \t has a problem and the programm has producted a huge number "12345678910111213141516..." now he want know the k'th number of this huge number. for example input 10 and output 1

thats basically the only way i can think of, maybe someone else has more clever solution?

#include <iostream> #include <fstream> int main() { unsigned int k; char digit; std::cout << "Enter integer k (0 < k <= 5000): "; std::cin >> k; std::fstream fstr {"broken.txt"}; // broken.txt is text file with content -> 1234567891011...5000 for (int idx{0}; idx < k ; ++idx) { fstr >> digit; } std::cout << "Solution = " << digit << std::endl; }

#include <iostream> #include <fstream> int main() { unsigned int k; char digit; std::cout << "Enter integer k (0 < k <= 5000): "; std::cin >> k; std::fstream fstr {"broken.txt"}; // broken.txt is text file with content -> 1234567891011...5000 for (int idx{0}; idx < k ; ++idx) { fstr >> digit; } std::cout << "Solution = " << digit << std::endl; }

#include <iostream> #include <fstream> int main() { unsigned int k; char digit; std::cout << "Enter integer k (0 < k <= 5000): "; std::cin >> k; std::fstream fstr {"broken.txt"}; // broken.txt is text file with content -> 1234567891011...5000 for (int idx{0}; idx < k ; ++idx) { fstr >> digit; } std::cout << "Solution = " << digit << std::endl; }

why don't you use using namespace std;

It’s generally considered a bad practice unless working on really tiny programs

it's annoying to write std;: every time

why don't you use using namespace std;

Hi everyone, from the code styling perspective, is it considered to be alright practice to declare a small struct in .h file containing class declaration, in case this struct is used EXCLUSIVELY within that class?

Yep why not, I would more think why you name .h not .hpp 😅

so use: using std::x

Thanks, I am using .h as I am trying to follow Google C++ style guide, where .h and .cc names are suggested

this is the problem: alex has written a programm that prints numbers from 1 to 5000 in deifferent lines but unfortunately his \t has a problem and the programm has producted a huge number "12345678910111213141516..." now he want know the k'th number of this huge number. for example input 10 and output 1

i want to write a programm that input k and output the k'th nu,bers of this number" 12345678910111213..." without string or arraye