How to reverse a binary number and print its decimal form. Do we have to totally do it using arrays or is there any shortcut?

You can do it using an array but you don't have to, since you could consider an int to be a "bit array". Shifting and masking should be enough

You can do it using an array but you don't have to, since you could consider an int to be a "bit array". Shifting and masking should be enough

Is there any trick using bitwise operators??

How to reverse a binary number and print its decimal form. Do we have to totally do it using arrays or is there any shortcut?

You can use https://en.cppreference.com/w/cpp/utility/bitset and https://en.cppreference.com/w/cpp/algorithm/reverse

What is masking?

Bit masking is a simple way of getting out the specific bit value or manipulate them. You use bitwise operators like & and | for these. int a = 0b1111; // 15 int b = 0b1001; // 9 int mask = 0b0010; // 2 int get2ndBitOfA = a & mask; // 0b0010 int get2ndBitOfB = b & mask; // 0b0000

Happy thanks giving to all😊

thats the code: https://onlinegdb.com/HyOLtgTqD

Check the parameters of printMatrix() you sent arrays in place of rows and cols that are integers. Maybe this is your problem

Check the parameters of printMatrix() you sent arrays in place of rows and cols that are integers. Maybe this is your problem

I think I fixed the printMartix function but still same error... https://onlinegdb.com/BJbJx-pcP

I think I fixed the printMartix function but still same error... https://onlinegdb.com/BJbJx-pcP

I think I fixed the printMartix function but still same error... https://onlinegdb.com/BJbJx-pcP

void deleteNode(Node *node) { // Your code here Node *ext,*p; ext->data=node->data; node->data=(node -> next)->data; (node->next)->data=ext->data; // move pointer to next p=node; p=p->next; node ->next=p ->next; node=p; delete node; }

I think I fixed the printMartix function but still same error... https://onlinegdb.com/BJbJx-pcP

void deleteNode(Node *node) { // Your code here Node *ext,*p; ext->data=node->data; node->data=(node -> next)->data; (node->next)->data=ext->data; // move pointer to next p=node; p=p->next; node ->next=p ->next; node=p; delete node; }

When I commented line 13, I get segmentation fault... Now that's your work

@olli I guess this was the solution to @Barneysworld ... Is it though? Never used multidimensional arrays...

also the parameters passed are completely messed up..

Hey!!! You initialised the arrays as variables.

Ty!!! Now I have problem with the print function, 🤦‍♂ I'll check in Google how to print 2d char array

@Barneysworld - There is no need to pass COLLS[1/2/3] since it's globally known, remove those parameters it's asking for trouble - You have chars and not strings, so using %s as format string is wrong - Have a function that prints ONE array and call it three times, instead of having a function that takes 3

Ty!!! Now I have problem with the print function, 🤦‍♂ I'll check in Google how to print 2d char array

@Barneysworld - There is no need to pass COLLS[1/2/3] since it's globally known, remove those parameters it's asking for trouble - You have chars and not strings, so using %s as format string is wrong - Have a function that prints ONE array and call it three times, instead of having a function that takes 3

How do I call the function 3 times? I got confused again

I think you should get the basics before dealing with arrays. Something like what are functions, how are they called, what are parameters and so on...

I see, ty anyway

otherwise void function() {} int main() { function(); // call 1st time function(); // call 2nd time // call function 10 more times for (int i = 0; i < 10; ++i) { function(); } }

otherwise void function() {} int main() { function(); // call 1st time function(); // call 2nd time // call function 10 more times for (int i = 0; i < 10; ++i) { function(); } }

Here void function () {} Is this the way to create a custom function?

function is the example above is a function defined and used for demonstration purposes

I wanted to ban

I wanted to ban

Double kill.

Suck off.

why? this is ban, not eban

sometimes I wonder if that guy was right about slav admins

What is eban?

sometimes I wonder if that guy was right about slav admins

What is eban?

electronic ban

by the way, I tried cppcheck - it found no errors in my code, only in boost headers and gperf code - so its useless for me

Did you try PVS Studio?

I was trying, but I realized its not free, so I gave up

best way to learn programming?

google.com

best way to learn programming?

Yah I know but what practices should I do first?.

Clang-Tidy?

Hi, I wanted to make a program that checks for the correct order of brackets. I've devised a way to do it - by incrementing the value of a variable when encountering an opening bracket and decrementing it when encountering closing bracket. Then I check if the number is equal to zero or not. But what if I've more than 1 type of bracket like (), {} and []. Do I have to make 3 vars for them??

Hi, I wanted to make a program that checks for the correct order of brackets. I've devised a way to do it - by incrementing the value of a variable when encountering an opening bracket and decrementing it when encountering closing bracket. Then I check if the number is equal to zero or not. But what if I've more than 1 type of bracket like (), {} and []. Do I have to make 3 vars for them??

hi. this is initially wrong approach. consider: text)(

Yeah!! So any other way?

for () only check greater/equal than zero every time is closed and compare with zero at the end

That's what I did. But it's wrong approach, right? So any other way?

for () its ok