Natan's Office Hours Before Moed B | |
| Natan will hold office hours this Tuesday at16:00-17:00 in Taub 213. If you plan on attending then email him your questions in advance: usnhyatcampus.technion.ac.il |
| 29/7/2018, 00:16:16 |
Final grade formula | |
| is 0.15*HW + 0.85*(1.2*XM) Yechiel |
| 25/7/2018, 18:00:50 |
Exam Scans and Appeals | |
| Dear Students, Exam scans are now available online. You may appeal your grade in the next four days until Friday, July 27th, 23:59. Instructions for appealing your exam: 1. Appeals should be sent by email to Dr. Kimchi 2. Every point that you appeal must be accompanied by an explanation. You should explain both what your code does and why it is correct. 3. We recommend running your code before appealing it. You are allowed to fix compilation errors when doing so. 4. Your grade can be lowered during an appeal if we discover new mistakes. 5. Please send appeals on time so that we can give you an answer in advance of moed b |
| 23/7/2018, 14:21:20 |
The Solution of Exam-A | |
| Was uploaded under "Course Material." Enjoy Yechiel |
| 21/7/2018, 10:27:41 |
Exam Moed A Grades | |
| Shalom All, I have uploaded the grades to GR++, and they are available (with a short explanation letter from me). The grades will be transferred to Ullman on Sunday, and scanned exams will be published shortly after. What is visible are the grades of each problem, and the combined grade with 15% HW grade after a factor of 20% on exam grade. What will be visible only after sending the grades to Ullman, is that all grades of 45 up to 54 were boosted up to 55, a passing grade. I guess that many of you will be disappointed due to a grade that is lower than expected. What I want to express here is my own disappointment: There were about 20 students attending the lecture . Naively, I thought the others know enough C. None in the least: while I cannot know how to associate a specific exam with students that had attended lectures (or had not), most errors were related to simple practices that we teach both during lectures and recitation. To add insult to injury, quite a few of the errors had demonstrated practices that were in contrast to practices that we explicitly teach. Those are unrelated to algorithms that we teach, but rather related to basic idioms of using the C programming language. Example: translating uppercase letters to lower case ones using magical numbers, rather then using the expression (c -'A' + 'a') which is, generally, independent on the character coding that is used. On the algorithmic side, the 4th problem could have been solved using an algorithm of complexity O(log(rows) + log(M)), which only a few students used. But in the solution, that I will soon publish, I have supplied a short code that solves the problem in complexity O(rows + M), that could have given you 20 pts (out of 30), but no student have used it. Apparently, most students used an algorithm of complexity O(rows * M), which immediately restricted the grade to 10 pts., and others used algorithms of complexity O(M * log(rows)), or O(rows * log(M)), which limited the grade to max of 15 pts. In addition, almost all implementations of binary search algorithms were rather different than those that were presented in lectures, causing sad errors - mainly in corner cases (like all 0s or no 0s). Some of the errors gave me an unavoidable impression, that the author had written (and run) very few programs - if at all. For those who are happy with a 55 grade it may be OK - and I won't complain: In the Technion, students are not obliged to attend non-laboratory classes, and are free to rely on dubious internet sites, rather than official lecture videos on the Technion sites. Others can do better. I wish you success Yechiel |
| 21/7/2018, 10:04:40 |
Homework Grades | |
| The resubmissions for HW5 and HW6 were checked. In additional, the final homework grades are now available. Each homework assignment is 15% of the final homework grade except for HW0 which is 10%. |
| 20/7/2018, 14:15:50 |
Grades for HW5 and HW6 | |
| The grades are now available for HW5 and HW6. For HW5 there were 5 tests for each question and each test was worth 10 points. The additional tests are available online. For HW6 there were 10 tests for the question and each test was worth 10 points. The additional tests with detailed information are available online. If you have a Windows computer please use the free program Notepad++ to view the files so that newlines are displayed correctly: https://notepad-plus-plus.org/ Both resubmissions will be open until July 16th. Good luck with the rest of your exams! |
| 10/7/2018, 10:40:41 |
Exam front-page (Instructions) was uploaded | |
| It appears in the section "Course Material". You are advised to read it (and understand) before the exam. I wish you success in all exans Yechiel |
| 5/7/2018, 03:14:49 |
Tutorial 11 | |
| The slides for tutorial 11 have been uploaded to the course website. |
| 4/7/2018, 10:41:10 |
Office Hours Before the Exam | |
| Dear Students, Natan will hold office hours tomorrow (Thursday) afternoon between 14:30-15:30 in Taub 213. Assaf will hold office hours on Sunday at 9:00 in Taub 201. |
| 4/7/2018, 10:37:51 |
Coding Examples | |
| Shalom All, The main page for such is http://www.cs.technion.ac.il/users/yechiel/CS/C-Programs/ More links related to teaching programming (including the above) are on http://www.cs.technion.ac.il/users/yechiel/CS/Teaching.html Programming books and Internet sources are on http://www.cs.technion.ac.il/users/yechiel/CS/C+C++books.html http://www.cs.technion.ac.il/users/yechiel/CS/Textbooks.html Enjoy Yechiel |
| 3/7/2018, 15:37:18 |
The Supplementary Lecture | |
| Shalom All, It will take place at 12:30 (2hrs), in the geology classroom (Intern'l building). See you there Yechiel |
| 2/7/2018, 09:13:39 |
The Supplementary Lecture | |
| Shalom All, Whether on purpose or by mistake, you didn't correct me when I thought that the semester ended last week. Well, last day of the semester is today, and today, at the lecture, we'll decide on date and time for the supplementary lecture. Have a good week and success in all exams Yechiel |
| 1/7/2018, 07:52:41 |
HW6 is online | |
| The due date is on 1/7. This is a small assignment of implementing 3 friendly recursive functions. The material is important. This is the chance to practice using recursion. We recommend that you start as soon as possible and attend our office hours and mailbox if you have questions. |
| 22/6/2018, 08:58:10 |
HW3 Resubmission | |
| The grades for HW3 have been updated for students who resubmitted. |
| 21/6/2018, 22:23:09 |
Grades for HW4 | |
| Dear Students, The grades for HW4 are now available. The grading was as follows: * Question 1 was worth 32 points. * Question 2 was worth 35 points. * Question 3 was worth 33 points. The resubmission will be open for 1 week. |
| 20/6/2018, 15:13:48 |
A Supplementary Lecture | |
| Shalom All, Next week's lecture will be devoted to recursion and a gentle explanation of two-dimensional arrays (basically, in C, 2-dim arrays are the same as 1-dim ones - except that one has to remember that they come with two indices). I'd like to add a supplementary lecture, that will be a general rehearsal - by examples. My suggested time is same-day same time on the week after the semester; namely, Sunday, July 1st, 13:30 - 15:30 (classroom will be announced later). If you want to have a say about a possible different time, make sure you attend next lecture. I wish you the best Yechiel |
| 20/6/2018, 07:20:40 |
Assaf's reception hour tomorrow is cancelled |
| 17/6/2018, 19:40:32 |
Small Update to HW5 | |
| The pdf for HW5 was updated with a small change regarding strlen and allowed functions. |
| 15/6/2018, 19:22:22 |
HW5 is now online | |
| The due date is in one week on 22/6. This is a small assignment with only two questions but the material is extremely important. We recommend that you start as soon as possible and attend our office hours if you have questions. After this assignment there will be one additional homework assignment on the topic of recursion and algorithms. |
| 15/6/2018, 15:34:51 |
Natan's Office Hours | |
| Natan wont have office hours on Sunday this week. Feel free to email Natan any questions. |
| 9/6/2018, 20:34:16 |
HW4 - Now able to submit with hw4q3.c, and minor fix of a test | |
| 1. The submission did not work. Now it works. You can now submit HW4 as usual: A zip file with hw4q1.c, hw4q2.c, hw4q3.c, student.txt 2. In t20.out there was a missing '\n' at the end of the last line. It was added to the test. However, we will accept answers even if they don't print it. That is, we will accept answers whether the output is like the old t20.out or the updated t20.out (the '\n' is the only difference) |
| 9/6/2018, 10:48:00 |
Clarification regarding stdbool.h in HW4 | |
| Dear Students, In HW4, toolbox.txt uses a "bool" type for representing true and false values. This is done to make the code more readable - the value "true" (without quotes) is just another name for the number 1 and the value "false" (without quotes) is just another name for the number 0. To use this file you can add "#include <stdbool.h>" (without quotes) to the top of your code and define any true/false variables with the type bool. Older versions of C might not support this feature - if you have an issue then please contact Assaf or Natan. All of the other material for HW4 has been covered by both Natan's and Assaf's recitation groups. |
| 6/6/2018, 14:53:24 |
Grades for HW-Resubmission | |
| Grades are now available for HW2 resubmission. Many students failed the resubmission because their output has minor mistakes. For example, some students didn't print a newline after the message "Please enter your homework grade" You must use DiffMerge to check your homework! If you don't remember how to use DiffMerge then you can speak to Assaf or Natan during office hours. |
| 5/6/2018, 22:56:01 |
Grades for HW3 | |
| Dear Students, The grades for HW3 are now available. The grading was as follows: * Question 1 was worth 40 points. There were 4 tests worth 10 points each * Question 2 was worth 30 points. There were 2 tests worth 15 points each * Question 3 was also worth 30 points. Here too there were 2 tests worth 15 points each. The resubmission will be open for 1 week. The additional tests are now available under the resubmission. |
| 5/6/2018, 22:32:10 |
HW4 is now online! | |
| Dear students, We have published HW4, which is due by Wednesday, June 13th at 23:59. You should send all questions about the homework to Assaf - uassafshomeratcampus.technion.ac.il You can also come to our office hours. Good luck! |
| 4/6/2018, 18:49:41 |
Material of Assaf's last and next tutorial | |
| During Assaf's last tutorial, we wrote some functions that mess with strings. They are under course material --> example programs. To Assaf's next tutorial, bring your laptops, and/or pen and paper, and we will write code together. Some ideas for stuff that we may try to write in class: A function that tells how many times a string is a substring of another string (for example, "arg" is a substring of "blargbargur" twice but not of artberg") A function that has - input: 2 strings, output: if they are a permutation of one another (same letters in different order. gar and rga are permutations of one another). A tic-tac-toe game Ideas are welcome |
| 4/6/2018, 18:58:08 |
Announcements Regarding HW1 and HW2 | |
| Dear Students, The resubmission grades for HW1 are now available. For HW2 we have extended the resubmission deadline by another week. If you cheated on HW2 and received a zero, resubmitting HW2 will NOT update your grade. However, you may resubmit the assignment to check if your code is correct. (Your grade will remain 0.) |
| 29/5/2018, 17:26:05 |
Assaf's reception hour | |
| Dear students, Assaf's reception hour is on Monday at 12:30-13:30. If you can't make it, it is also possible to arrive to Rabin 302 at 12:30 and ask questions after class. If you can't make it, it is also possible to try to set another time by email. Do feel free to come to the reception hours, to ask questions about the material and the homework. The reception hours are for you and Assaf will be happy to help if he can. Assaf will solve all of your problems if you ask him to. Almost. |
| 29/5/2018, 17:40:04 |
Special Office Hours and Other Announcements | |
| Natan will hold special office hours today between 12:30 and 13:30 in Taub 213 on the topic of HW3. Additionally, new slides about functions have been uploaded to the course website. We would also like to clarify that students received a 0 on HW2 if and only if they copied code from other students. If you received a 5 or a 10 then you are not suspected of cheating and can resubmit HW2 like usual. If you received a 0 then you are suspected of copying code from another student. Please feel free to attend our office hours and ask questions if you are stuck on the homework. |
| 23/5/2018, 11:11:15 |
Grades For HW2 | |
| Grades are now available for HW2. Unfortunately many students copied large parts of their code from other students. All such cases received an automatic 0 for both sides. If you received a zero it means your assignment was disqualified for copying. Students who didn't copy will be allowed to resubmit their code for HW2 until 29.5. We checked your code with 10 tests for each question - the 5 original tests that were published with the assignment and 5 new tests. Each test was worth 5 points. The whole set of tests is on the course website under the name q1_additional_tests.zip and q2_additional_tests.zip. You can find the tests under the resubmission. Note: the names of the test files have been changed. The inputs for each test have names like T19.in (test 9 for question 1) The outputs have names like T19.out (the output file for T19.in). |
| 22/5/2018, 18:10:46 |
HW3 is now online! | |
| Dear students, We have published HW3, which is due by Sunday, May 27th at 23:59. You should send all questions about the homework to Natan - usnhyatcampus.technion.ac.il You can also come to our office hours. Good luck! |
| 16/5/2018, 14:45:59 |
New Slides for Tutorial 7 | |
| A new version of the slides for tutorial 7 (arrays) has been uploaded. |
| 16/5/2018, 08:30:54 |
Grades for HW1 - Sequel | |
| Dear students, We changed the automatic test to "forgive" if a line break ('\n') was not printed at the end of the last line of your output. As a result, for some students the grade for HW1 is now higher. We also extend the resubmission date to Monday, 21/5, so you have more time to find and correct errors in your last submission. |
| 13/5/2018, 23:29:54 |
New Grades for HW0_Resubmission | |
| The HW0 grade has been updated for students who resubmitted the assignment. |
| 12/5/2018, 18:25:56 |
Grades for HW1 | |
| Dear Students, Grades are now available for HW1. Many students received a low grade because their program's output was very slightly different from the expected output. Since the check is automatic, the heaviest price is paid for having even a small printing mistake. diffMerge is your friend that finds those mistakes. Common mistakes: 1. Not printing a line break ('\n') at the end of EVERY line (also after the line which has just 4 reversed characters - q2) 2. Printing polite but unnecessary lines such as "Please enter the number of meat-eaters" or "Your word is..." 3. Not printing a space after the colon (':') in q1. 4. Not relating correctly to the types in q1 - which is an integer? which is a float? 5. Not using formatted printing (%.2f) for q1 - printing a price of "8.50000000" instead of "8.50". 6. Submitting a file that its content is just "book". 7. Others For this homework assignment, we will allow you to resubmit the assignment with no penalty if you received under 100. Please resubmit the homework in the next week. Resubmit both questions again even if you fixed just one. For your own safety, please use diffMerge. If you have questions about your grade please speak to Natan or Assaf in the mail or during our office hours. |
| 9/5/2018, 21:49:45 |
Clarification - Due date for HW2 is 9/5. Late submission date is 14/5. |
| 7/5/2018, 13:20:48 |
Minor Inconsistencies in HW2 - now fixed | |
| Dear students, As some of you may have noticed, there were a few technical inconsistencies in HW2, between the written exercise and some "expected_output" files. They are now fixed and the written exercise "HW2" and "expected_output" files are consistent. Make sure that your output matches the correct version of "expected_output" files. We apologize for the inconvenience, The course staff |
| 1/5/2018, 07:35:33 |
HW2 is now online! | |
| Dear students, We have published HW2, which is due by Wednesday, May 9th at 23:59. You should send all questions about the homework to Assaf - uassafshomeratcampus.technion.ac.il You can also come to our office hours. Good luck! |
| 27/4/2018, 10:58:13 |
Assaf's reception hour on the next Monday (30.4) is moved | |
| The complementary reception hour will take place right after Assaf's next tutorial - Wednesday 2.5, Rabin 302, at 12:20-13:00. This is a one-time change. |
| 27/4/2018, 10:56:53 |
Course Material - "programs in C" folder added | |
| And it is to be updated with more relevant examples in the future. |
| 27/4/2018, 10:47:48 |
Grades for HW0 | |
| Dear Students, Grades are now available for HW0. There were two common mistakes: 1. Not uploading a .c file with your source code 2. Printing the wrong sentence or a sentence that has incorrect spaces or punctuation Homework assignment which were correct received 100 and incorrect assignments received 0. Then a five point bonus was added if you submitted on time. For this homework assignment, we will allow you to resubmit the assignment with no penalty if you received under 100. Please resubmit the homework in the next week. If you have questions about your grade please speak to Natan or Assaf during our office hours. |
| 21/4/2018, 19:22:05 |
HW1 is now online! | |
| Dear students, We have published HW1, which is due by Wednesday, April 25 at 23:59. You should send all questions about the homework to Natan - usnhyatcampus.technion.ac.il You can also come to our office hours. Our office hours for the rest of the semester can be found under the Staff page on the website. Good luck! |
| 11/4/2018, 15:35:55 |
Notes about HW0 | |
| Hello students, A clearer version of HW0 is on the site under Assignments. The assignment itself is the same, we added additional helpful content and it is marked in yellow. There were a few common mistakes in some of the submissions so far. (Detailed at bottom of this message.) We clarify that this exercise is a part of the final grade. We remind you that you get an automatic 3-business-day extension for your homework, which means you may submit/resubmit your homework until Monday, 9/4. Only the last submission counts. Assaf will be away from technology until next Saturday and will happily answer all emails then. Happy Holidays! The course staff Common mistakes: 1) Handing in “hw0q1.exe” (instead of “hw0q1.c”) – the .exe file does not include the code that you wrote. 2) Handing in a program that prints that life is like a box of chocolates (instead of printing that it’s like a donut). 3) Handing in a .c file that is not named hw0q1.c. |
| 31/3/2018, 17:45:41 |
Workshop - 27.3, 16:30, Taub 235 | |
| The workshop to help with HW0 and the download and installation of the course's softwares: CodeBlocks and DiffMerge (and XCode for mac users), will be held in Taub (computer science) building, room 235, at Tuesday 27.3 at 16:30 until 18:00. We remind you that some tutorials for those softwares are under Course Material. You are welcome to come for any help, questions or problems with the HW and the softwares. |
| 22/3/2018, 09:16:43 |
HW0 is Published | |
| Dear Students, We have published the first homework assignment, HW0, which is due by Wednesday, March 28th at 23:30. A workshop will be held to help with the exercise, and also with the download and installation of the necessary programs for the course. The time and date of the workshop will be published later. You can send questions by mail to uassafshomeratcampus.technion.ac.il Please note that: 1) This is the first assignment, so you should read carefully the general instructions in the beginning of the assignment's document. 2) Submission is in singles only. 3) An automatic 3 days extension is given to all homework assignments. However, if you submit on time, you will get a bonus of 5 points to the assignment's grade. Good luck! The course team :) |
| 21/3/2018, 20:34:00 |
Office Hours Today at 13:30 | |
| Natan will hold office hours today to help students install software for the course. The office hours will be held in Taub 213 at 13:30. If you have a Mac, please download XCode in advance - XCode is large and downloading it can take a long time: https://itunes.apple.com/us/app/xcode/id497799835?ls=1&mt=12 |
| 21/3/2018, 11:36:40 |
Welcome to Introduction to Computer Language C! | |
| Dear students, This is the first announcement on the "Introduction to Computer Language C" course website. All the information and course material are on this site The site address is: http://webcourse.cs.technion.ac.il/234126 All course announcements will be posted on the site, and you should also get them by e-mail. If you are not registered yet, you can subscribe to this mailing list manually (using the "Auto Update" menu option on this site). The course team this semester is: Dr. Yechiel Kimchi - Lecturer in charge Mr. Assaf Shomer - TA Mr. Natan Yellin - TA The recitations will be held as usual this week. Good luck with the new semester, The course team :) |
| 19/3/2018, 18:18:44 |