init a array，set a pointer ，try

that hard

May be you need read C++ Primer

Can guys recommand some open repos for beginners(like me)

Guys check this code out please # peer review my code >>> github dot com slash AnonymousM21 slash Mark-Calculator

Guys check this code out please # peer review my code >>> github dot com slash AnonymousM21 slash Mark-Calculator

github.com/AnonymousM21/Mark-Calculator

actually we can see your repo link from error msg

Yep men check it out if there is any mistakes to modify

actually we can see your repo link from error msg

But it's deleted

emmmm

emmmm

Admin?

Admin?

ya?

I saw error msg before delated

ya?

Nothing

Nothing

alright o/

Okay please check it out for any mistakes

Okay please check it out for any mistakes

char b[8]; scanf("%s", b); woups

char b[8]; scanf("%s", b); woups

What's up?

What's up?

buffer overflow

What's up?

What prevents me from entering a string longer than 8 * sizeof(char)

What prevents me from entering a string longer than 8 * sizeof(char)

Check it out it doesn't matter, I tried it

buffer overflow

But you're correct

are you aware that you can use "%d" as a format string for scanf?

Good day programmers. How do I program a chipset for location

Hi guys!!!!

does anyone here knows about javascript?

What what?

Check it out it doesn't matter, I tried it

[meow@Workstation ~]$ ./a.out Enter Mark 1 : 19 Enter Mark 2 : aaaaaaaaaaaaaaaaaa Invalid mark. Enter again between 1-100! Enter Mark 2 : 19 Enter Mark 3 : 101 Invalid mark, > 100. Enter again between 1-100!. Enter Mark 3 : 19 Enter Mark 4 : 1 Enter Mark 5 : 1 __________________ Aggregate : 59 Pecentile : 11.80% *** stack smashing detected ***: terminated Aborted (core dumped)

/sban

/blue_text_must_click

does anyone here knows about javascript?

Yes

[meow@Workstation ~]$ ./a.out Enter Mark 1 : 19 Enter Mark 2 : aaaaaaaaaaaaaaaaaa Invalid mark. Enter again between 1-100! Enter Mark 2 : 19 Enter Mark 3 : 101 Invalid mark, > 100. Enter again between 1-100!. Enter Mark 3 : 19 Enter Mark 4 : 1 Enter Mark 5 : 1 __________________ Aggregate : 59 Pecentile : 11.80% *** stack smashing detected ***: terminated Aborted (core dumped)

Did the last messages are real sent by bash?

Hi guys!!!!

What drives you to join c/c++ community and immediately ask about javascript?

[meow@Workstation ~]$ ./a.out Enter Mark 1 : 19 Enter Mark 2 : aaaaaaaaaaaaaaaaaa Invalid mark. Enter again between 1-100! Enter Mark 2 : 19 Enter Mark 3 : 101 Invalid mark, > 100. Enter again between 1-100!. Enter Mark 3 : 19 Enter Mark 4 : 1 Enter Mark 5 : 1 __________________ Aggregate : 59 Pecentile : 11.80% *** stack smashing detected ***: terminated Aborted (core dumped)

Anyway what you can advise me ?

...mj12 is typing still now?

Anyway what you can advise me ?

first of all, when you're reading numbers, you don't have to read them as a string, copy them(?), and then pass them into atoi(), you can just pass %d as a format string into scanf also, when you're dealing with strings supplied by the user, on any more or less recent system, you're able to let scanf allocate the memory for you, by specifying either %ms or %as (look it up in the manpage on whatever system you're on)

I used to read them as String because to check if there is a human type error like Enter Mark one : 6o

I used to read them as String because to check if there is a human type error like Enter Mark one : 6o

I mean the person tried to enter number "60" but he typed "six and letter o"

github.com/AnonymousM21/Mark-Calculator

What's the point of this line? toInt = atoi(c) * 0;

github.com/AnonymousM21/Mark-Calculator

If one symbol is digit you convert the whole line? What if the next symbol is not digit? if(isdigit(c[j]) != 0) toInt = atoi(c); Your oneliner ifs is difficult to read, would be better if you add curly braces and put the part inside the if block on the new line

github.com/AnonymousM21/Mark-Calculator

Here you calculate the length of the string every iteration, I don't see c changing inside of the loop, so you could have saved the length outside for(unsigned int j = 0; j < strlen(c); j++) {

[meow@Workstation ~]$ ./a.out Enter Mark 1 : 19 Enter Mark 2 : aaaaaaaaaaaaaaaaaa Invalid mark. Enter again between 1-100! Enter Mark 2 : 19 Enter Mark 3 : 101 Invalid mark, > 100. Enter again between 1-100!. Enter Mark 3 : 19 Enter Mark 4 : 1 Enter Mark 5 : 1 __________________ Aggregate : 59 Pecentile : 11.80% *** stack smashing detected ***: terminated Aborted (core dumped)

Your aaaaaaaaa.. string probably overrides special safety signature bytes on the stack. Which is good, it detected a buffer overflow in your app

Your aaaaaaaaa.. string probably overrides special safety signature bytes on the stack. Which is good, it detected a buffer overflow in your app

I am perfectly aware, i was just demonstrating that him saying "it doesn't matter" is wrong, since the application still crashes

I am perfectly aware, i was just demonstrating that him saying "it doesn't matter" is wrong, since the application still crashes

Ah lol, I thought you're the author My bad :)

A two-dimensional series is given. Find the maximum number of elements in this series. Input: n=3 1 2 3 4 5 6 7 8 9 Output: 8

read the rules, no assignment requests

try to solve it by yourself first

how do i work around this issue in c

try to solve it by yourself first

hm

try to solve it by yourself first

I tried it, but it didn't work

read the rules, no assignment requests

can you help me??

A two-dimensional series is given. Find the maximum number of elements in this series. Input: n=3 1 2 3 4 5 6 7 8 9 Output: 8

.

I tried it, but it didn't work

Can you show your code?

yea

#include<stdio.h> #include<stdlib.h> #include<time.h> int main() { srand(time(NULL)); int a[100][100],n; printf("n: ");scanf("%d",&n); for(int i=0;i<n;i++) { for(int j=0;j<n;j++) { a[i][j]=rand()%10+100; printf("%2d ",a[i][j]); } puts(""); } puts(""); int max=a[0][0],count=0; for(int i=0;i<n;i++) { for(int j=0;j<n;j++) { if(a[i][j]>max) { count++; max=a[i][j]; } } } printf("%d \n",max); printf("%d ",count); }

I don't know where to put count++

guys how do I make a socket blocking mode? my recvfrom is always setting errno 11 and I really just want to wait for the response I don't need async mode

int sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP); then I set timeout then: fcntl(sock, F_SETFL, flags ^ O_NONBLOCK); to make it blocking - but doesn't work

int sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP); then I set timeout then: fcntl(sock, F_SETFL, flags ^ O_NONBLOCK); to make it blocking - but doesn't work

Its been a while I worked on sockets but I hope you have out listen ?

Put listen*

the example doesn't use listen

it's not async

Listen has nothing to do with async. It is used to listen on the port and then we accept the incoming connection. In your case it looks like you are doing something other than accepting connection.

A two-dimensional series is given. Find the maximum number of elements in this series. Input: n=3 1 2 3 4 5 6 7 8 9 Output: 8

.

Icmp is the protocol used by ping

Listen has nothing to do with async. It is used to listen on the port and then we accept the incoming connection. In your case it looks like you are doing something other than accepting connection.

there is no port

What exactly are you trying to do ?

I'm trying to send a ICMP_ECHO

Ohk

and then getting the response

sendto works, but recvfrom doesn't

the errno set by recvfrom is always 11, which suggests me the socket is not in blocking mode

I tried to set it with fcntl but it doesn't work

Okay, the problem was the timeout I put 1ms of timeout instead of 1s

Maybe you are setting the weong option. pls check if SO_RCVTIMEO is required

Okay, the problem was the timeout I put 1ms of timeout instead of 1s

Ohk

Maybe you are setting the weong option. pls check if SO_RCVTIMEO is required

yeah it was the timeout... but I still get errno 11 from recvfrom

I tried with 2 seconds and still won't receive

maybe the packet I'm sending is malformed...

What's the point of this line? toInt = atoi(c) * 0;

If every single characters are not digits to make their value to zero for the next if else check if(toInt != 0) break; else { printf("Invalid mark. Enter again between 1-100!\n"); continue; }