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Problem set. Volume 2
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ID
Title
Source
Authors
Difficulty
1197
Lonesome Knight
Spring School Contest 2002
16117
28
1100
Final Standings
Tetrahedron Team Online Contest May 2001
10134
45
1110
Power
Bulgarian Online Contest September 2001
8707
52
1196
History Exam
Spring School Contest 2002
8298
55
1149
Sinus Dances
7500
61
1119
Metro
Autumn School Contest 2001
6289
72
1131
Copying
USU Championship 2001
6057
75
1106
Two Teams
Tetrahedron Team Online Contest May 2001
6003
76
1139
City Blocks
NEERC 2001 Central Subregional
5916
77
1146
Maximum Sum
DSAP Vietnam Online Contest November 2001
5729
80
1194
Handshakes
Spring School Contest 2002
5724
80
1180
Stone Game
USU Personal Contest 2002
5328
86
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5253
87
1161
Stripies
NEERC 2001 Northern Subregional
5031
91
1104
Don’t Ask Woman about Her Age
Tetrahedron Team Online Contest May 2001
4876
93
1126
Magnetic Storms
USU Championship 2001
4758
96
1136
Parliament
NEERC 2001 Central Subregional
4607
99
1118
Nontrivial Numbers
Autumn School Contest 2001
4474
102
1192
Ball in a Dream
Spring School Contest 2002
4187
109
1123
Salary
Autumn School Contest 2001
3820
119
1167
Bicolored Horses
Romanian Online Contest December 2001
3378
135
1178
Akbardin’s Roads
USU Personal Contest 2002
3160
145
1142
Relations
DSAP Vietnam Online Contest November 2001
3079
148
1152
False Mirrors
Ural Championship 2001. Round 2
2855
160
1135
Recruits
NEERC 2001 Central Subregional
2807
162
1157
Young Tiler
Ural Championship 2001. Round 2
2745
166
1102
Strange Dialog
Tetrahedron Team Online Contest May 2001
2652
171
1193
Queue at the Exam
Spring School Contest 2002
2558
179
1134
Cards
NEERC 2001 Central Subregional
2533
180
1114
Boxes
Bulgarian Online Contest September 2001
2443
186
1112
Cover
Bulgarian Online Contest September 2001
2439
186
1164
Fillword
NEERC 2001 Northern Subregional
2303
198
1138
Integer Percentage
NEERC 2001 Central Subregional
2292
199
1183
Brackets Sequence
NEERC 2001
2271
201
1133
Fibonacci Sequence
NEERC 2001 Central Subregional
2082
219
1125
Hopscotch
USU Championship 2001
2012
226
1122
Game
Autumn School Contest 2001
1899
239
1150
Page Numbers
Ural Championship 2001. Round 2
1896
240
1191
Catch the thief!
Spring School Contest 2002
1889
242
1108
Heritage
Bulgarian Online Contest September 2001
1851
245
1109
Conference
Bulgarian Online Contest September 2001
1851
245
1195
Ouths and Crosses
Spring School Contest 2002
1811
252
1160
Network
NEERC 2001 Northern Subregional
1747
265
1113
Jeep
Bulgarian Online Contest September 2001
1746
260
1184
Cable Master
NEERC 2001
1733
264
1117
Hierarchy
Autumn School Contest 2001
1676
271
1179
Numbers in Text
USU Personal Contest 2002
1619
282
1153
Supercomputer
Ural Championship 2001. Round 2
1534
297
1124
Mosaic
USU Championship 2001
1505
302
1190
Bar of Chocolate
Spring School Contest 2002
1503
304
1185
Wall
NEERC 2001
1501
304
1127
Colored Bricks
USU Championship 2001
1456
312
1155
Troubleduons
Ural Championship 2001. Round 2
1437
316
1116
Piecewise Constant Function
Autumn School Contest 2001
1424
318
1156
Two Rounds
Ural Championship 2001. Round 2
1396
326
1121
Branches
Autumn School Contest 2001
1343
338
1137
Bus Routes
NEERC 2001 Central Subregional
1324
343
1176
Hyperchannels
USU Personal Contest 2002
1281
356
1141
RSA Attack
1249
363
1140
Swamp Incident
NEERC 2001 Central Subregional
1235
367
1145
Rope in the Labyrinth
DSAP Vietnam Online Contest November 2001
1193
380
1111
Squares
Bulgarian Online Contest September 2001
1142
396
1162
Currency Exchange
NEERC 2001 Northern Subregional
1129
402
1128
Partition into Groups
USU Championship 2001
1107
409
1115
Ships
Bulgarian Online Contest September 2001
1104
410
1107
Warehouse Problem
Tetrahedron Team Online Contest May 2001
1088
414
1181
Cutting a Painted Polygon
USU Personal Contest 2002
1042
437
1129
Door Painting
USU Championship 2001
1028
440
1198
Jobbery
929
511
1189
Pairs of Integers
NEERC 2001
927
490
1158
Censored!
NEERC 2001 Northern Subregional
912
497
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
909
494
1182
Team Them Up!
NEERC 2001
893
509
1172
Ship Routes
Romanian Online Contest December 2001
819
553
1101
Robot in the Field
Tetrahedron Team Online Contest May 2001
812
552
1143
Electric Path
DSAP Vietnam Online Contest November 2001
799
566
1132
Square Root
779
579
1186
Chemical Reactions
NEERC 2001
664
682
1174
Weird Permutations
Romanian Online Contest December 2001
656
688
1169
Pairs
Romanian Online Contest December 2001
633
712
1168
Radio Stations
Romanian Online Contest December 2001
627
719
1159
Fence
NEERC 2001 Northern Subregional
622
725
1147
Shaping Regions
DSAP Vietnam Online Contest November 2001
576
781
1105
Observers Coloring
Tetrahedron Team Online Contest May 2001
552
808
1154
Mages Contest
Ural Championship 2001. Round 2
519
865
1165
Subnumber
NEERC 2001 Northern Subregional
507
886
1130
Nikifor's Walk
USU Championship 2001
481
931
1175
Strange Sequence
USU Personal Contest 2002
480
937
1151
Radiobeacons
Ural Championship 2001. Round 2
429
1043
1173
Lazy Snail
Romanian Online Contest December 2001
426
1051
1177
Like Comparisons
USU Personal Contest 2002
355
1258
1171
Lost in Space
Romanian Online Contest December 2001
344
1294
1170
Desert
Romanian Online Contest December 2001
299
1482
1148
Building Towers
DSAP Vietnam Online Contest November 2001
252
1746
1144
The Emperor's Riddle
DSAP Vietnam Online Contest November 2001
239
1837
1163
Chapaev
NEERC 2001 Northern Subregional
226
1940
1187
Statistical Trouble
NEERC 2001
217
2025
1188
Library
NEERC 2001
207
2118
1166
Funny Card Game
NEERC 2001 Northern Subregional
121
3591
1199
Mouse
108
3667
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