If you want truely unique numbers, than 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 20, 22, 23, 24, 25, 26, 27, 28, 29 30, 33, 34, 35, and so on until 90, 99 The same can also be applied to 100 to 1000 however it will be more complicated 100, 101, 102, 103, 104, 105, 106, 107, 108, 109 110, 111, 112, 113, 114, 115, 116, 117, 118, 119 120, 122, 123, 124, 125, 126, 127, 128, 129 130, 133, 134, 135, and so on until 190, 199 200 210, 212 to 219 220, 222 to 229 to 290, 299 300 310, 313 to 319 320, 323 to 329 And so on until idk Is difficult cus there lots of combinations that can occur 114 is same as 411 so 411 cannot occur And so on

hi, i need to focus on C application security basics, may you suggest me an resource/course/book please?

https://www.amazon.com/Secure-Coding-2nd-Software-Engineering/dp/0321822137/ref=mp_s_a_1_1?dchild=1&keywords=secure+coding+c&qid=1626172902&sr=8-1

released in 2005 :( im looking for an up-to-date alternative, sir

The book teaches concepts that are relevant even today. Only the language has evolved but the coding practices suggested in the book are as useful today as they were back then.

oh, ok... and, have you ever read this book? if yes may you share your comments with me please? thx again ^^

I have in the past. The book talks about how C code can be exploited if not programmed carefully. So in the process you not only learn how to avoid coding badly but also how to exploit such code. Admittedly it doesnt talk about advanced topics like kernel exploits using heap spraying and so on but if you are coding a C/C++ library or an application, you want to be sure that you follow the practices laid out in the book. Some of the contents for C++ may not be relevant with Modern C++ but the C content is all still valid

DiD you read his code? He wants to print 3 digit numbers where all the digital are different (I.e. no 2 digits are the same). He also wants to print just the combinations and not the permutations. So 123, 132, 213, 231, 321 and 312 are all considered the same and he wants to print just one of these.

Then in that case Easy part 000 to 009 012 to 019 023 to 029 034 to 039 045 to 049 056 to 059 So on to 089 101 to 189 following above 289, 389, 489, 589, 689, 789, 889, 989 Hard part We can no longer do simple ranges xx1 is invalid cus 1xx 200 is 002, 020 210 is 012, 021 234 to 239 Same as 10 to 89 same as above 333 to 339 Same as above til 987

DiD you read his code? He wants to print 3 digit numbers where all the digital are different (I.e. no 2 digits are the same). He also wants to print just the combinations and not the permutations. So 123, 132, 213, 231, 321 and 312 are all considered the same and he wants to print just one of these.

Then in that case Easy part 000 to 009 012 to 019 023 to 029 034 to 039 045 to 049 056 to 059 So on to 089 101 to 189 following above 289, 389, 489, 589, 689, 789, 889, 989 Hard part We can no longer do simple ranges xx1 is invalid cus 1xx 200 is 002, 020 210 is 012, 021 234 to 239 Same as 10 to 89 same as above 333 to 339 Same as above til 987

And this is the result I got: 012, 013, 014, 015, 016, 017, 018, 019, 023, 024, 025, 026, 027, 028, 029, 034, 035, 036, 037, 038, 039, 045, 046, 047, 048, 049, 056, 057, 058, 059, 067, 068, 069, 078, 079, 089, 123, 124, 125, 126, 127, 128, 129, 134, 135, 136, 137, 138, 139, 145, 146, 147, 148, 149, 156, 157, 158, 159, 167, 168, 169, 178, 179, 189, 234, 235, 236, 237, 238, 239, 245, 246, 247, 248, 249, 256, 257, 258, 259, 267, 268, 269, 278, 279, 289, 345, 346, 347, 348, 349, 356, 357, 358, 359, 367, 368, 369, 378, 379, 389, 456, 457, 458, 459, 467, 468, 469, 478, 479, 489, 567, 568, 569, 578, 579, 589, 678, 679, 689, 789

Where is 031? 130? Etc

791 ?

https://www.amazon.com/Secure-Coding-2nd-Software-Engineering/dp/0321822137/ref=mp_s_a_1_1?dchild=1&keywords=secure+coding+c&qid=1626172902&sr=8-1

https://resources.sei.cmu.edu/downloads/secure-coding/assets/sei-cert-c-coding-standard-2016-v01.pdf

hello guys, can I make a code in C to run the cmd, type something into it, and then press the enter key?

*guys

hello guys, can I make a code in C to run the cmd, type something into it, and then press the enter key?

Good day..can someone help me with the comparison between strings from a user, like string name; cin » name; then like maybe if(name != "john") { //terminate a program by line exit(0); } I'm sorry, i am unable to break line for this problem..please help

if (name != "John") is not working, please help.

if (name != "John") is not working, please help.

Strcmp(name, "John") for example

"john" is a string name which a user is supposed to enter, if not then program terminated. This is like (Do you want to continue(Y/N) where a user would enter y or n, not any other character) my example requires a string, a full name.

Hello

https://www.nohello.com/2013/01/please-dont-say-just-hello-in-chat.html

Good day..can someone help me with the comparison between strings from a user, like string name; cin » name; then like maybe if(name != "john") { //terminate a program by line exit(0); } I'm sorry, i am unable to break line for this problem..please help

https://www.nohello.com/2013/01/please-dont-say-just-hello-in-chat.html

Good day..can someone help me with the comparison between strings from a user, like string name; cin » name; then like maybe if(name != "john") { //terminate a program by line exit(0); } I'm sorry, i am unable to break line for this problem..please help

And this is the result I got: 012, 013, 014, 015, 016, 017, 018, 019, 023, 024, 025, 026, 027, 028, 029, 034, 035, 036, 037, 038, 039, 045, 046, 047, 048, 049, 056, 057, 058, 059, 067, 068, 069, 078, 079, 089, 123, 124, 125, 126, 127, 128, 129, 134, 135, 136, 137, 138, 139, 145, 146, 147, 148, 149, 156, 157, 158, 159, 167, 168, 169, 178, 179, 189, 234, 235, 236, 237, 238, 239, 245, 246, 247, 248, 249, 256, 257, 258, 259, 267, 268, 269, 278, 279, 289, 345, 346, 347, 348, 349, 356, 357, 358, 359, 367, 368, 369, 378, 379, 389, 456, 457, 458, 459, 467, 468, 469, 478, 479, 489, 567, 568, 569, 578, 579, 589, 678, 679, 689, 789

what is this?

what it does ? pseudo random number generator ?

Hi. Can someone help me? I have to program a function that will prevent any repetition of same numbers and combinations. I successfully did the first part (the three numbers are different from each other), but I don’t know how to make it not repeat combinations: for example if there is 789, it should’t print 987 later. #include <unistd.h> void ft_putchar(char c) { write(1, &c, 1); } void ft_print_comb(void); int main(void) { ft_print_comb(); } void ft_print_comb(void) { char a; char b; char c; char comma; char space; a = '0'; comma = ','; space = ' '; while (a <= '9') { b = '0'; while(b <= '9') { c = '0'; while(c <= '9') { if(c != a && c != b && a != b) { ft_putchar(a); ft_putchar(b); ft_putchar(c); ft_putchar(comma); ft_putchar(space); } c++; } b++; } a++; } }

Does someone know why do I can’t put the limit of ‘99’ instead of ‘9’ in while conditions?

' ' is used to specify a character literal. '99' is not a character literal and you cant use single quotes around it.

I tried “99” but it’s still not working

Because "99" is a string literal and you cant use relational operators with it

Okay so what should I use to make it work? When I remove quotes it’s still wrong

You should use strncmp in C

What’s the simplest way to remove the last comma from a while loop?

What’s the simplest way to remove the last comma from a while loop?

You mean when printing comma-separated values?

What is comma?

Yes

depends on how you iterate over, I would just add a check for it, like this if (i < count - 1) { std::cout << ","; }

or, even better, dont even append it if you dont need it ;)