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International programming contests
 Task nameTask sourceLanguagesSucess rate
1.Mapjboi 2007343/958 (35%)
2.Booksjboi 2007299/887 (33%)
3.Numbersjboi 2007283/1311 (21%)
4.Boatsjboi 2007156/865 (18%)
5.Chairsjboi 2007288/824 (34%)
6.Coinsjboi 2008274/754 (36%)
7.Closestjboi 2008135/845 (15%)
8.Rectanglesjboi 2008242/615 (39%)
9.Jumpsjboi 2008233/1591 (14%)
10.Squaresjboi 2008176/656 (26%)
11.Sumxjboi 2008357/1367 (26%)
12.Handshakesjboi 2009163/1112 (14%)
13.Riddlesjboi 2009156/543 (28%)
14.Coinsjboi 2009171/535 (31%)
15.Reconstructionjboi 2010184/581 (31%)
16.Competitionjboi 2010160/963 (16%)
17.Examsjboi 2010188/898 (20%)
18.Pawnsjboi 2011112/542 (20%)
19.Puzzlejboi 201177/208 (37%)
20.Sortingjboi 2011162/442 (36%)
21.Heritagejboi 201156/428 (13%)
22.Sambajboi 2011325/835 (38%)
23.Spiral 123jboi 201165/266 (24%)
24.Committeejboi 2012285/767 (37%)
25.Guidesjboi 2012113/521 (21%)
26.Squaresjboi 201228/232 (12%)
27.Summingjboi 2012118/580 (20%)
28.Lucky numbersjboi 2012255/797 (31%)
29.Drinksjboi 2012182/804 (22%)
30.Boxesjboi 201247/384 (12%)
31.Mountain runningjboi 201282/383 (21%)
32.Counting inversionsjboi 2013263/1265 (20%)
33.Cyclic marathonjboi 201380/769 (10%)
34.Pointsjboi 201392/428 (21%)
35.Big Circlejboi 2014173/887 (19%)
36.Fuleco and Brazil antjboi 2014160/623 (25%)
37.Strategyjboi 201465/291 (22%)
38.Mascot songjboi 201485/342 (24%)
39.Ticketsjboi 2014167/476 (35%)
40.Andres Iniestajboi 201477/479 (16%)
41.Pianojboi '15123/440 (27%)
42.Palm treesjboi '1547/362 (12%)
43.Drinksjboi '1520/678 (2%)
44.Algorithmsjboi '1518/351 (5%)
45.Floodjboi '1548/244 (19%)
46.Startupjboi '15130/655 (19%)
47.Examjboi '1641/400 (10%)
48.Hacking tasksjboi '1646/251 (18%)
49.Printing costsjboi '1623/101 (22%)
50.Programmersjboi '1676/594 (12%)
51.Swapsjboi '1697/488 (19%)
52.Donationsjboi '1676/578 (13%)
53.Magicejoi '1779/326 (24%)
54.Sixejoi '1711/64 (17%)
55.Particlesejoi '1751/347 (14%)
56.Camelejoi '1713/74 (17%)
57.Experienceejoi '1729/157 (18%)
58.Gameejoi '1757/334 (17%)
59.Harmonic numberjboi '1817/170 (10%)
60.Kbinjboi '1836/337 (10%)
61.Shootingsjboi '1815/94 (15%)
62.Doubletroublejboi '183/98 (3%)
63.Orjboi '1824/274 (8%)
64.Trainjboi '1839/175 (22%)