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International programming contests
 Task nameTask sourceLanguagesSucess rate
1.Mapjboi 2007347/967 (35%)
2.Booksjboi 2007304/896 (33%)
3.Numbersjboi 2007287/1324 (21%)
4.Boatsjboi 2007168/921 (18%)
5.Chairsjboi 2007292/841 (34%)
6.Coinsjboi 2008279/761 (36%)
7.Closestjboi 2008140/880 (15%)
8.Rectanglesjboi 2008247/624 (39%)
9.Jumpsjboi 2008239/1621 (14%)
10.Squaresjboi 2008184/677 (27%)
11.Sumxjboi 2008364/1385 (26%)
12.Handshakesjboi 2009164/1126 (14%)
13.Riddlesjboi 2009163/570 (28%)
14.Coinsjboi 2009173/540 (32%)
15.Reconstructionjboi 2010195/657 (29%)
16.Competitionjboi 2010164/1035 (15%)
17.Examsjboi 2010193/913 (21%)
18.Pawnsjboi 2011117/562 (20%)
19.Puzzlejboi 201178/214 (36%)
20.Sortingjboi 2011169/451 (37%)
21.Heritagejboi 201158/437 (13%)
22.Sambajboi 2011333/843 (39%)
23.Spiral 123jboi 201167/269 (24%)
24.Committeejboi 2012290/774 (37%)
25.Guidesjboi 2012118/529 (22%)
26.Squaresjboi 201229/233 (12%)
27.Summingjboi 2012123/593 (20%)
28.Lucky numbersjboi 2012260/803 (32%)
29.Drinksjboi 2012187/827 (22%)
30.Boxesjboi 201247/385 (12%)
31.Mountain runningjboi 201286/390 (22%)
32.Counting inversionsjboi 2013273/1292 (21%)
33.Cyclic marathonjboi 201383/774 (10%)
34.Pointsjboi 201395/449 (21%)
35.Big Circlejboi 2014185/935 (19%)
36.Fuleco and Brazil antjboi 2014169/644 (26%)
37.Strategyjboi 201470/327 (21%)
38.Mascot songjboi 201489/367 (24%)
39.Ticketsjboi 2014171/483 (35%)
40.Andres Iniestajboi 201478/493 (15%)
41.Pianojboi '15128/462 (27%)
42.Palm treesjboi '1547/379 (12%)
43.Drinksjboi '1523/694 (3%)
44.Algorithmsjboi '1518/356 (5%)
45.Floodjboi '1553/256 (20%)
46.Startupjboi '15136/690 (19%)
47.Examjboi '1641/406 (10%)
48.Hacking tasksjboi '1648/259 (18%)
49.Printing costsjboi '1623/101 (22%)
50.Programmersjboi '1676/596 (12%)
51.Swapsjboi '1698/491 (19%)
52.Donationsjboi '1677/592 (13%)
53.Magicejoi '1792/362 (25%)
54.Sixejoi '1711/65 (16%)
55.Particlesejoi '1755/363 (15%)
56.Camelejoi '1713/78 (16%)
57.Experienceejoi '1729/160 (18%)
58.Gameejoi '1758/348 (16%)
59.Harmonic numberjboi '1817/178 (9%)
60.Kbinjboi '1836/360 (10%)
61.Shootingsjboi '1815/94 (15%)
62.Doubletroublejboi '183/99 (3%)
63.Orjboi '1824/287 (8%)
64.Trainjboi '1839/175 (22%)