==30==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000000244 at pc 0x00000034565f bp 0x7ffff9bb6c00 sp 0x7ffff9bb6bf8 READ of size 4 at 0x602000000244 thread T0 #2 0x7fe830cd20b2 (/lib/x86_64-linux-gnu/libc.so.6+0x270b2) 0x602000000244 is located 16 bytes to the right of 4-byte region [0x602000000230,0x602000000234) allocated by thread T0 here: #6 0x7fe830cd20b2 (/lib/x86_64-linux-gnu/libc.so.6+0x270b2) Shadow bytes around the buggy address: 0x0c047fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c047fff8000: fa fa fd fa fa fa fd fa fa fa fd fa fa fa fd fa 0x0c047fff8010: fa fa fd fd fa fa fd fa fa fa fd fa fa fa fd fa 0x0c047fff8020: fa fa fd fa fa fa fd fd fa fa fd fd fa fa fd fd 0x0c047fff8030: fa fa fd fd fa fa fd fd fa fa fd fd fa fa fd fa =>0x0c047fff8040: fa fa fd fa fa fa 04 fa[fa]fa fd fa fa fa fd fa 0x0c047fff8050: fa fa 04 fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8070: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8090: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc ==30==ABORTING

can anyone explain what is this error?

?

I'm not 100% sure but I think you tried to access a part of heap you didnt allocate

Probably you allocated some memory, started reading from the beginning and continued for too long

Or maybe you didnt even allocate the memory in the first place

Btw I think it's way better if you format your code/errors through pastebin or similar if it is long

i wrote a code for this, "Construct Binary Tree from Preorder and Inorder Traversal". for sample test cases it runs fine but when i submit the code it gives a run time error and i can't understand the reason why

Try to execute your program with valgrind on your sample test cases. Most probably there is memory leak.

/get

Try to execute your program with valgrind on your sample test cases. Most probably there is memory leak.

+1 I think that if you compile with -static -s flags you can even get the line where you tried the invalid read

+1 I think that if you compile with -static -s flags you can even get the line where you tried the invalid read

can you explain what is it

Try to execute your program with valgrind on your sample test cases. Most probably there is memory leak.

i don't know what are you saying, please explain

can you explain what is it

Google valgrind

Ok

/report

I am a beginner in c++ please suggest

How can I learn c++

How can I learn c++

/get cbook

Is there any notes forc or c++

Looking for lead iOS resource , with 8+ years of experience and good communication skills08:56

Hi everyone. I have Google and trying to look for cloud based platform with compiler for C/C++ that is similar to colab. So that I can continue working seamlessly on different computer. So far what I can think of is saving the work in GitHub and taking it from there and VS code to work on it. Anyone has a better idea or method or suggestion? Appreciate if you can share.

You have been given an empty array(ARR) and its size N. The only input taken from the user will be N. Your task is to populate the array using the integer values in the range 1 to N(both inclusive) in the order - 1,3,.......4,2. Sample Input 1 : 6 Sample Output 1 : 1 3 5 6 4 2 Sample Input 2 : 9 Sample Output 2 : 1 3 5 7 9 8 6 4 2 sample output 3: 1 3 2 in c++

You have been given an empty array(ARR) and its size N. The only input taken from the user will be N. Your task is to populate the array using the integer values in the range 1 to N(both inclusive) in the order - 1,3,.......4,2. Sample Input 1 : 6 Sample Output 1 : 1 3 5 6 4 2 Sample Input 2 : 9 Sample Output 2 : 1 3 5 7 9 8 6 4 2 sample output 3: 1 3 2 in c++

Where's your code and where did you get stuck?

Where's your code and where did you get stuck?

#include<iostream> using namespace std; int main(){ int n; cout<<"enter array size"<<endl; cin>>n; int arr[n]; int val=1; for(int i=0;i<n/2;i++){ arr[i]=val; val=val+2; } int val2=n; for(int i=n/2;i<n;i++){ arr[i]=val2; val2=val2-2;} for(int i=0;i<n;i++){ cout<<arr[i]; } return 0; }

this code works for 6 but not for 5

and 3

#include<iostream> using namespace std; int main(){ int n; cout<<"enter array size"<<endl; cin>>n; int arr[n]; int val=1; for(int i=0;i<n/2;i++){ arr[i]=val; val=val+2; } int val2=n; for(int i=n/2;i<n;i++){ arr[i]=val2; val2=val2-2;} for(int i=0;i<n;i++){ cout<<arr[i]; } return 0; }

for(int i=1; i < n; i+=2) for(int i=n-2; i>0;i-=2) cmiiw

for(int i=1; i < n; i+=2) for(int i=n-2; i>0;i-=2) cmiiw

doesn't really work, does it?

doesn't really work, does it?

idk just wild guess hehe

idk just wild guess hehe

I see, this would do the job though for(int i = 1; i <= n; i += 2) printf("%d ", i); for(int i = n & (~0U << 1); i > 0; i -= 2) printf("%d ", i);

it doesnt work after using n+1/2

it doesnt work after using n+1/2

additionally your start value for the second half is wrong, it should only be n, if n is even. Or in other words it should start at the highest even number.

additionally your start value for the second half is wrong, it should only be n, if n is even. Or in other words it should start at the highest even number.

means for second loop I start from highest even number right

#include <stdio.h> int main(){ int n,i,j; printf("Enter the numbers of elements :"); scanf("%d",&n); char Numbers[n]; for (i=0;i<n;i++) { printf("Enter your numbers : "); scanf("%d",&Numbers[i]); } for(j=n;j>=1;j--) { printf("%d",Numbers[j]); } return 0; }

from this coding suppose to get out put like "6789"

but i got Enter the numbers of elements :4 Enter your numbers : 9 Enter your numbers : 8 Enter your numbers : 7 Enter your numbers : 6 0678 -------------------------------- Process exited after 12.74 seconds with return value 0 Press any key to continue . . .

like this ........why ???

I see, this would do the job though for(int i = 1; i <= n; i += 2) printf("%d ", i); for(int i = n & (~0U << 1); i > 0; i -= 2) printf("%d ", i);

nice

Anyone here works with any kind of Android Libraries injection? Using hooks or anything like that?

Anyone here works with any kind of Android Libraries injection? Using hooks or anything like that?

.

Helo too

// Resolve hostname asio::ip::tcp::resolver r(ios); auto host = co_await r.async_resolve(asio::ip::tcp::resolver::query{std::string(ws_host), "443"}, asio::use_awaitable); // SSL setup auto ssl_ctx = asio::ssl::context(asio::ssl::context::sslv23); // Connect asio::ssl::stream<asio::ip::tcp::socket> sock(ios, ssl_ctx); co_await asio::async_connect(sock, host, asio::use_awaitable); Hey, any clue what's wrong here? I simply get "no matching funvtion call to asio::async_connect :-/

Any c programmer I need help for assignment

Ok

Any c programmer I need help for assignment

Any c programmer I need help for assignment

If its easy maybe I can help

Any c programmer I need help for assignment

Send the problem here and we could try to solve it

Send the problem here and we could try to solve it

Don't do that you'll get banned

Don't do that you'll get banned

But if she/he needs help to understand how to think about it would it be warnable/bannable?

But if she/he needs help to understand how to think about it would it be warnable/bannable?

Because it works like this, if someone starts working on the problem and is stuck in the middle due logical problem or because something isn't working then that is a help, help is not doing assignment. If she/he has a problem he/she should share the problem, not say "I need help with assignment".

Mhhh, overall you are right

Hello everybody! I need some advice. How to use PostgreSQL correctly in c++ code? What is the best practice here? ORM or direct requests? Which library should I choose? Do I need to write my own wrapper? How to handle exceptions?

Hi

Hi

Write a program in C to separate odd and even integers in separate arrays. Go to the editor Test Data : Input the number of elements to be stored in the array :5 Input 5 elements in the array : element - 0 : 25 element - 1 : 47 element - 2 : 42 element - 3 : 56 element - 4 : 32 Expected Output : The Even elements are : 42 56 32 The Odd elements are : 25 47 ..................................how to do it?

i tried

#include <stdio.h> int main(){ int n,i,total=0; printf("Enter the numbers of elements :"); scanf("%d",&n); int odd_num[n]; int even_num[n]; int numbers[n]; for (i=0;i<n;i++){ printf("Enter your sum_of_elements : "); scanf("%d",&numbers[i]); if ((numbers[i]/2 )== 0) { odd_num[i] = numbers[i]; } else { even_num[n] = numbers[i]; } } printf("odd numbers are = %d \n",odd_num[n]); printf("even numbers are = %d \n",odd_num[n]); return 0; } this is my code . whats wrong?

Enter the numbers of elements :4 Enter your sum_of_elements : 7 Enter your sum_of_elements : 8 Enter your sum_of_elements : 9 Enter your sum_of_elements : 6 odd numbers are = 1629313344 even numbers are = 1629313344 -------------------------------- Process exited after 12.78 seconds with return value 0 Press any key to continue . . . worst output....................!

Hi

Anyone Have CPP Book?

Hi

hii

#include <stdio.h> int main(){ int n,i,total=0; printf("Enter the numbers of elements :"); scanf("%d",&n); int odd_num[n]; int even_num[n]; int numbers[n]; for (i=0;i<n;i++){ printf("Enter your sum_of_elements : "); scanf("%d",&numbers[i]); if ((numbers[i]/2 )== 0) { odd_num[i] = numbers[i]; } else { even_num[n] = numbers[i]; } } printf("odd numbers are = %d \n",odd_num[n]); printf("even numbers are = %d \n",odd_num[n]); return 0; } this is my code . whats wrong?

you declare your array wrong. Use dynamic array allocation.

#include <stdio.h> int main(){ int n,i,total=0; printf("Enter the numbers of elements :"); scanf("%d",&n); int odd_num[n]; int even_num[n]; int numbers[n]; for (i=0;i<n;i++){ printf("Enter your sum_of_elements : "); scanf("%d",&numbers[i]); if ((numbers[i]/2 )== 0) { odd_num[i] = numbers[i]; } else { even_num[n] = numbers[i]; } } printf("odd numbers are = %d \n",odd_num[n]); printf("even numbers are = %d \n",odd_num[n]); return 0; } this is my code . whats wrong?

Secondly, you are incorrectly checking the oddness. Think a bit math.

#include <stdio.h> int main(){ int n,i,total=0; printf("Enter the numbers of elements :"); scanf("%d",&n); int odd_num[n]; int even_num[n]; int numbers[n]; for (i=0;i<n;i++){ printf("Enter your sum_of_elements : "); scanf("%d",&numbers[i]); if ((numbers[i]/2 )== 0) { odd_num[i] = numbers[i]; } else { even_num[n] = numbers[i]; } } printf("odd numbers are = %d \n",odd_num[n]); printf("even numbers are = %d \n",odd_num[n]); return 0; } this is my code . whats wrong?

odd_num[n] does not exist, max index is n-1

#include<iostream> #include<string.h> using namespace std; int main() { char pass[20], ePass[20]; int numOne, numTwo, sum; cout<<"Create a Password: "; cin>>pass; cout<<"\nEnter Two Numbers to Add: "; cin>>numOne>>numTwo; cout<<"\nEnter the Password to See the Result: "; cin>>ePass; if(!strcmp(pass, ePass)) { sum = numOne + numTwo; cout<<endl<<numOne<<" + "<<numTwo<<" = "<<sum; } else cout<<"\nSorry! You've entered a Wrong Password!"; cout<<endl; return 0; }

#include<iostream> #include<string.h> using namespace std; int main() { char pass[20], ePass[20]; int numOne, numTwo, sum; cout<<"Create a Password: "; cin>>pass; cout<<"\nEnter Two Numbers to Add: "; cin>>numOne>>numTwo; cout<<"\nEnter the Password to See the Result: "; cin>>ePass; if(!strcmp(pass, ePass)) { sum = numOne + numTwo; cout<<endl<<numOne<<" + "<<numTwo<<" = "<<sum; } else cout<<"\nSorry! You've entered a Wrong Password!"; cout<<endl; return 0; }

What's wrong ?

hello

can you help me to subscribe my friend youtube chanel? chanel about programming tutorial

yes

Please I need someone to help me out with a program

/get cppbookguide

where to download traveling api free of cost

why

where to download traveling api free of cost

What do you mean?

Meow

Meow

Your profile's photo is dog.

Your profile's photo is dog.

Your profile's photo is dog.

Right ... woof!

{ int index, i, numOfPairs; int c; FILE *file; file = fopen("./pairs.txt", "r"); if ((c = getc(file)) == EOF) { perror("Error opening file"); //or return 1; fclose(file); } while ((c = getc(file)) != EOF) putchar(c); { if (pid == ROOT) fscanf(file, "%d", &numOfPairs); allNumbers = (int *)malloc(sizeof(int) * numOfPairs * numbersInPair); //need multiply in 2 numbers for each pair while (!feof(file) && numOfPairs > 0) { int x, y, arrIndex = 0; numOfPairs--; fscanf(file, "%d %d", &x, &y); allNumbers[arrIndex] = x; printf("The X : %d\n", x); allNumbers[arrIndex + 1] = y; printf("THE Y : %d\n", y); arrIndex + 2; } fclose(file); }

HELP PLEASE

Anyone have a cyber security group?