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ZOJ Problem Set Vol 1
Vol 1
Vol 2
Vol 3
Vol 4
Vol 5
Vol 6
Vol 7
Vol 8
Vol 9
Vol 10
Vol 11
Vol 12
Vol 13
Vol 14
Vol 15
Vol 16
Vol 17
Vol 18
Vol 19
Vol 20
Vol 21
Vol 22
Vol 23
Vol 24
Vol 25
ID
Title
Ratio
(
AC
/
All)
1070
Bode Plot
78.14% (
1051
/
1345
)
1088
System Overload
61.07% (
3011
/
4930
)
1094
Matrix Chain Multiplication
60.25% (
1316
/
2184
)
1068
P,MTHBGWB
59.54% (
1204
/
2022
)
1047
Image Perimeters
59.54% (
1217
/
2044
)
1062
Trees Made to Order
57.60% (
731
/
1269
)
1036
Enigma 2
56.48% (
74
/
131
)
1040
Signal Box
56.25% (
27
/
48
)
1090
The Circumference of the Circle
54.07% (
2426
/
4486
)
1045
HangOver
53.42% (
6653
/
12452
)
1086
Octal Fractions
52.64% (
1055
/
2004
)
1082
Stockbroker Grapevine
52.40% (
1255
/
2395
)
1043
Split Windows
52.08% (
75
/
144
)
1069
Plato's Blocks
50.47% (
53
/
105
)
1027
Human Gene Functions
49.73% (
2002
/
4025
)
1091
Knight Moves
49.33% (
2862
/
5801
)
1041
Transmitters
49.26% (
1012
/
2054
)
1074
To the Max
48.65% (
3158
/
6490
)
1030
Farmland
47.78% (
162
/
339
)
1073
Round and Round We Go
47.61% (
1554
/
3264
)
1093
Monkey and Banana
47.59% (
1908
/
4009
)
1006
Do the Untwist
46.93% (
3961
/
8439
)
1007
Numerical Summation of a Series
46.20% (
2315
/
5010
)
1067
Color Me Less
45.83% (
3851
/
8402
)
1056
The Worm Turns
45.06% (
1644
/
3648
)
1083
Frame Stacking
44.39% (
309
/
696
)
1028
Flip and Shift
44.01% (
1339
/
3042
)
1084
Channel Allocation
43.98% (
654
/
1487
)
1042
W's Cipher
43.80% (
856
/
1954
)
1078
Palindrom Numbers
43.76% (
3251
/
7429
)
1048
Financial Management
43.66% (
9234
/
21148
)
1032
Area 2
43.43% (
450
/
1036
)
1072
Microprocessor Simulation
43.31% (
282
/
651
)
1031
Square Destroyer
42.83% (
257
/
600
)
1089
Lotto
42.59% (
2811
/
6599
)
1052
Algernon's Noxious Emissions
42.55% (
60
/
141
)
1001
A + B Problem
41.98% (
40392
/
96200
)
1019
Illusive Chase
41.65% (
357
/
857
)
1004
Anagrams by Stack
41.44% (
3558
/
8584
)
1058
Currency Exchange
40.50% (
1103
/
2723
)
1016
Parencodings
40.50% (
2955
/
7296
)
1076
Gene Assembly
40.14% (
1911
/
4760
)
1049
I Think I Need a Houseboat
40.14% (
5547
/
13818
)
1054
For the Porsche
40.00% (
50
/
125
)
1005
Jugs
39.65% (
4357
/
10988
)
1100
Mondriaan's Dream
39.28% (
863
/
2197
)
1024
Calendar Game
38.72% (
896
/
2314
)
1092
Arbitrage
37.98% (
1043
/
2746
)
1095
Humble Numbers
37.95% (
2296
/
6049
)
1066
Square Ice
37.85% (
243
/
642
)
1026
Modular multiplication of polynomials
37.47% (
688
/
1836
)
1064
Roads Scholar
34.82% (
70
/
201
)
1075
Set Me
34.63% (
124
/
358
)
1079
Robotic Jigsaw
34.06% (
31
/
91
)
1080
Direct Subtraction
33.59% (
43
/
128
)
1025
Wooden Sticks
33.47% (
3052
/
9118
)
1051
A New Growth Industry
32.45% (
1733
/
5340
)
1037
Gridland
32.15% (
4418
/
13738
)
1002
Fire Net
32.03% (
8283
/
25860
)
1096
Subway
31.77% (
156
/
491
)
1063
Space Station Shielding
31.77% (
244
/
768
)
1044
Index Generation
31.09% (
37
/
119
)
1029
Moving Tables
30.90% (
1870
/
6051
)
1065
Robots
30.43% (
28
/
92
)
1077
Genetic Combinations
30.43% (
77
/
253
)
1018
Deformed Wheel
30.04% (
67
/
223
)
1046
Double Vision
29.93% (
44
/
147
)
1060
Sorting It All Out
29.92% (
1012
/
3382
)
1085
Alien Security
29.85% (
458
/
1534
)
1038
T9
29.68% (
464
/
1563
)
1061
Web Navigation
29.65% (
1794
/
6049
)
1033
Ambiguous Dates
29.56% (
68
/
230
)
1097
Code the Tree
29.35% (
605
/
2061
)
1013
Great Equipment
28.81% (
892
/
3096
)
1035
Cube
28.74% (
48
/
167
)
1098
Simple Computers
28.28% (
577
/
2040
)
1017
The Bermuda Triagle
28.08% (
98
/
349
)
1055
Oh, Those Achin' Feet
27.73% (
66
/
238
)
1039
Number Game
27.39% (
275
/
1004
)
1081
Points Within
27.00% (
853
/
3159
)
1015
Fishing Net
25.38% (
752
/
2962
)
1003
Crashing Balloon
25.31% (
4988
/
19706
)
1023
University Entrace Examination
25.12% (
102
/
406
)
1021
The Willy Memorial Program
24.93% (
93
/
373
)
1099
HTML
24.61% (
1954
/
7937
)
1011
NTA
24.56% (
623
/
2536
)
1010
Area
24.26% (
1724
/
7106
)
1057
Undercut
23.04% (
3702
/
16067
)
1050
Start Up the Startup
22.31% (
258
/
1156
)
1009
Enigma
21.76% (
1080
/
4961
)
1053
FDNY to the Rescue!
21.73% (
243
/
1118
)
1012
Mainframe
21.29% (
369
/
1733
)
1008
Gnome Tetravex
20.86% (
2238
/
10726
)
1059
What's In a Name
20.00% (
142
/
710
)
1014
Operand
19.85% (
320
/
1612
)
1087
Cracking the Code
19.25% (
88
/
457
)
1071
Follow My Logic
18.62% (
54
/
290
)
1022
Parallel Expectations
13.21% (
74
/
560
)
1020
Puzzle Out
11.46% (
94
/
820
)
1034
Cog-Wheels
8.59% (
72
/
838
)
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