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Introductory Lecture

Introductory Lecture. Programming Club. Agenda. Programming in Linux for newbies Transition from Turbo to GNU C/C++ Face to face with the ONLINE JUDGE Contest for y6 Junta Weekend Programming Contest. Linux for newbies. Basic Linux Commands ls, cp, mkdir, chmod, man, rm, less, mv.

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Introductory Lecture

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  1. Introductory Lecture Programming Club

  2. Agenda • Programming in Linux for newbies • Transition from Turbo to GNU C/C++ • Face to face with the ONLINE JUDGE • Contest for y6 Junta • Weekend Programming Contest

  3. Linux for newbies • Basic Linux Commands • ls, cp, mkdir, chmod, man, rm, less, mv. • Text editors • Kate, kwrite, emacs, vi. • Compile • GNU C : gcc <filename> • GNU C++ : g++ <filename> • Java : javac <filename> • Execute • GNU C/C++ : ./a.out • Java : java <class name>

  4. Transition from Turbo to GNU C/C++ • Use #include<iostream> instead of #include<iostream.h> • Include the line “using namespace std;” before the main function. • Do not include conio.h. • Do not use any external library • int size is 32 bit.

  5. Example Problem • You are given a very long number of about 1000 digits. You have to successively keep on summing the digits till you reach a single digit.For example –Input: 9946879Output: 7 How? 9+9+4+6+8+7+9=52; 5+2=7

  6. Face to face with Online Judge • How to submit ? • Understanding judge response • Success. Solution Accepted. • Compile Error. • Wrong Answer. • Execution Error: It can be further divided into following categories: • Invalid Memory Reference: Null pointer exception? Are you consuming too much memory. • Process tried to write a file. • Process killed by signal 9 => Time Limit Exceeded. • Unknown Error:

  7. Contest for Y6 Junta • Contest exclusively for Y6 • Contest Problems • Pascal triangle • Longest palindrome in a given string • One number in an array of n no.s is missing, nos are not in order, find the missing number • Given a number get a new number by adding the digits of the number……keep doing this until the number reduces to a single digit. Print the digit you get • Submit solutions/algorithms at

  8. WPC All are invited • Register at students.iitk.ac.in/programmingclub/wpc.htm atleast one hour before the contest begins • Date: 20th Aug 2006 • Time : 8:30 pm to 11:30 pm • Submission page : students.iitk.ac.in/programmingclub/wpc.htm

  9. Prizes • WPC • First prize: 300/- • Second Prize: 200/- • Third prize: 100/- • Chocolates for first 10 correct entries for each question. • Y6 contest • First correct entry for each problem : Rs 200

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