Use existing discussions for all problems. 38 out of 44 problems have hints available. ICO Online Judge is available here.

1. [WORDLIST] Word List (B)
2. [NEXTPERM] Next Permutation (B)
3. [01TILES] 0/1 Tiles (B)
4. [LEAFEAT] Leaf Eaters (I)
5. [EQGIFTS] Equal Gifts (B)
6. [ENDCORR] End of Corruption (I)
7. [BUFFALOES] Speculating on Buffaloes (B)
8. [LONGPALIN] Longest Palindrome (B) (A)
9. [NUMROUTE] Number of Routings (I)
10. [GREATESC] The Great Escape (I)
11. [BOOKSORT] Sorting Books (A)
12. [FINDNUMS] Find the Numbers (B-)

This discussion is for expanding your array of maneuvers needed to code quickly and efficiently.

STL:

The first and most important thing that I'd like to discuss about is the C++ STL. Learning it would enable you to code up an assortment of algorithms and complicated data structures in a matter of seconds.

You can learn to use the C++ STL from the following amazing sites:

Studytonight : Contains syntax and examples for most of the STL containers and algorithms.

Sanfoundry : Shows how to implement what you've learnt in complete programs

Topcoder(Highly recommended) : This place teaches yo...

Note: There is no official syllabus for ZCO vs INOI vs IOITC. Syllabus for ZCO, INOI has been determined by looking at all the concepts covered in all ZCO, INOI problems since last 5 years. All the topics covered by ZCO, INOI are also in the Basic topics section of ICO online study material. Syllabus for IOITC is same as syllabus for IOI, since the training camp is training you for IOI. There is a higher focus on the topics mentioned in the Advanced topics specifically covered in ICO online study material. :)

The below tutorials are the best tutorials on the internet for each topic. If you find better tutorials for a particular topic, please share them with everyone.

Zonal Computing Olympiad (ZCO):

• Episode 1: Why do we need (efficient) algorithms?
• Episode 2: Our first algorithm: Quick-sort
• Episode 3: Merge-sort
• Episode 4: Binary search

25 out of 99 problems posted so far.

1. Cecilia's Revenge (IOITC 2015, Final 2)
2. Monster Challenge (IOITC 2015, Final 2)
3. Not So Random Walks (IOITC 2015, Final 2)
4. Coloring (IOITC 2015, Final 3)
5. Fun With Grid (IOITC 2015, Final 3)
6. D - Array (IOITC 2015, Final 3)
7. Chandragupta and the Insurgents (IOITC 2015, Finals 1)
8. Chandragupta and the Transport System (IOITC 2015, Finals 1)
9. Chandragupta and the fun with BST (IOITC 2015, Finals 1)
10. Tree Man (IOITC 2015, Test 4)
11. It's Magic (IOITC 2015, Test 4)
12. Birthday Present (IOITC 2015, Test 4)

Hi,

I need Detailed Solutions of All previous years ZIO Questions Papers. OR As many as possible.

Please, Help.

Thanks