@programminginc - страница 1494

Sourav

Ok

olli

I hope that wasn't another dumb question

Another issue: Given an array is passed to a function, how do you get the size?

BinaryByter

There's no way to store 256 in a char

If you watch the right movie, there is 😏

MᏫᎻᎯᎷᎷᎬᎠ

Another issue: Given an array is passed to a function, how do you get the size?

Ops

BinaryByter

MᏫᎻᎯᎷᎷᎬᎠ

Yeah

Hayk

Like you want it to automatically find you a bigger type to store it?

I can't understand. So.. I've checked and if I type char c = 256; cout << (int)c; then the output is 256.

Hayk

I can't understand. So.. I've checked and if I type char c = 256; cout << (int)c; then the output is 256.

This in c++

Mihail

#include <iostream> using std::cout; int main() { char c = 256; cout << (int)c << '\n'; }

Mihail

Warnings: source_file.cpp:6:12: warning: implicit conversion from 'int' to 'char' changes value from 256 to 0 [-Wconstant-conversion] char c = 256; ~ ^~~ 1 warning generated. Result: 0 Tip: Wrap your code in triple backticks to display it in monospace.

Mihail

@hayk6

Hayk

I used cxxdroid

Mihail

I used cxxdroid

I used clang

Mihail

Not some noname compiler port

Anonymous

Hlw

Anonymous

Hlw

hi 😂🤟

klimi

hi

Matic

#include<iostream> #include<stdlib.h> #include<time.h> using namespace std; int fillArray(int arr[],int n){ for(int i=0;i<n;i++){ arr[i] = rand()%5; for(int j=0;j<n;j++){ while(arr[j] == arr[i]) arr[i] = rand()%5; } } } int main(){ int arr[5]; srand(time(0)); fillArray(arr,5); //print now for(int i=0;i<5;i++) cout<<" "<<arr[i]<<" "; }

Matic

why doesn't this run? just hangs

Matic

supposed to fill an array with non repetitive ints

Matic

should I use something else than that while loop?

Mihail

#include<iostream> #include<stdlib.h> #include<time.h> using namespace std; int fillArray(int arr[],int n){ for(int i=0;i<n;i++){ arr[i] = rand()%5; for(int j=0;j<n;j++){ while(arr[j] == arr[i]) arr[i] = rand()%5; } } } int main(){ int arr[5]; srand(time(0)); fillArray(arr,5); //print now for(int i=0;i<5;i++) cout<<" "<<arr[i]<<" "; }

When i and j are the same that while will never end

Mihail

Also rand() is biased

Mihail

If it's C++ you should use a mt19937 for example

Mihail

Oh and fillArray should be void

Matic

My homework says I should compare both arrays in a function int compare(int generated[7], int input[7], int n)

Matic

and output the number count that are the same and the number itself

Matic

for example: 1. hit: 5

Matic

2. hit: 9

Matic

I know I can return the number count from the function but how would I manage the number itself to be printed in main?

MᏫᎻᎯᎷᎷᎬᎠ

Dude How do you know all that stuff?!!!!

Mihail

Dude How do you know all that stuff?!!!!

Do what?

MᏫᎻᎯᎷᎷᎬᎠ

Do what?

Know!!*

MᏫᎻᎯᎷᎷᎬᎠ

You can tell it to do so with constexpr xD

Matic

int hits_calc(int pc[7], int player[7], int n){ int hits = 0; for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ if(pc[i] == player[j]) hits++; } } return hits; } int main() { srand(time(0)); int player[7]; int pc[7]; for(int i=0;i<7;i++) cout<<" "<<player[i]<<" "; cout<<endl; for(int i=0;i<7;i++) cout<<" "<<pc[i]<<" "; cout<<hits_calc(pc, player, 7)<<" zadetkov."; }

Matic

This now prints the number of hits

Matic

how would I print the hit itself in MAIN?

Matic

and I've left out the array fill functions

MᏫᎻᎯᎷᎷᎬᎠ

int hits_calc(int pc[7], int player[7], int n){ int hits = 0; for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ if(pc[i] == player[j]) hits++; } } return hits; } int main() { srand(time(0)); int player[7]; int pc[7]; for(int i=0;i<7;i++) cout<<" "<<player[i]<<" "; cout<<endl; for(int i=0;i<7;i++) cout<<" "<<pc[i]<<" "; cout<<hits_calc(pc, player, 7)<<" zadetkov."; }

Is the function signature is syntaxtically legal?🤔

MᏫᎻᎯᎷᎷᎬᎠ

Wow

MᏫᎻᎯᎷᎷᎬᎠ

Yes it is

Asad

hi guys! i am just learning C++ and practising some code. now i just wanted to make a program that multiplies all numbers between 1 and 100 . but it gives me 0. why is this? is it beacause of my computer's hardware?

MᏫᎻᎯᎷᎷᎬᎠ

I thought you MUST pass a pointer

MᏫᎻᎯᎷᎷᎬᎠ

hi guys! i am just learning C++ and practising some code. now i just wanted to make a program that multiplies all numbers between 1 and 100 . but it gives me 0. why is this? is it beacause of my computer's hardware?

Define an variable with a value 1

MᏫᎻᎯᎷᎷᎬᎠ

Yeah

Asad

Define an variable with a value 1

#include <iostream> int main() { int product = 1, value1 = 1; while (value1 < 100) { product = product * value1; value1 = value1 + 1; } std::cout << "\n\n The product of all numbers between 1 and 100 is " << product << std::endl; return 0; }