Sphere Online Judge
sign in
News
Problems
basics
challenge
classical
none
partial
riddle
tutorial
Status
Ranking
Forum
SPOJ
time:
2025-09-05
21 : 06 : 52
All
ADA95
DOC
ASM32-GCC
ASM32
ASM64
GAWK
MAWK
BASH
BC
BF
C-CLANG
C
NCSHARP
CSHARP
C++ 4.3.2
CPP
CPP14-CLANG
CPP14
C99
CLPS
CLOJURE
COBOL
COFFEE
LISP clisp
LISP sbcl
D
D-CLANG
D-DMD
DART
ELIXIR
ERL
FSHARP
FANTOM
FORTH
FORTRAN
GO
GOSU
GRV
HASK
ICON
ICK
JAR
JAVA
JS-RHINO
JS-MONKEY
JULIA
KTLN
LUA
NEM
NICE
NIM
NODEJS
OBJC
OBJC-CLANG
OCAML
OCT
PAS-GPC
PAS-FPC
PDF
PERL
PERL6
PHP
PICO
PIKE
PS
PRLG-swi
PROLOG
PYTHON
PYPY
PYPY3
PYTHON3
PY_NBC
R
RACKET
RUBY
RUST
SCALA
SCM guile
CHICKEN
SCM qobi
SED
ST
SQLITE
SWIFT
TCL
TEXT
UNLAMBDA
VB.NET
WHITESPACE
list of classical problems
<
Previous
3
4
5
6
7
8
9
10
11
12
13
Next
>
ID
NAME
CODE
USERS
ACC %
1029
Matrix Summation
MATSUM
3559
20.15
1030
Triple Fat Ladies
EIGHTS
19216
51.74
1031
Up Subsequence
UPSUB
734
32.66
1043
Can you answer these queries I
GSS1
14319
19.04
1108
Card Trick
CTRICK
2245
50.38
1110
Sudoku
SUDOKU
541
40.15
1112
Number Steps
NSTEPS
34153
43.04
1161
Tic-Tac-Toe ( I )
TOE1
3382
22.85
1162
Tic-Tac-Toe ( II )
TOE2
2410
30.37
1163
Java vs C ++
JAVAC
5524
22.88
1166
Dead Fraction
DEADFR
324
23.42
1167
Move To Invert
MINCOUNT
2461
31.80
1182
Sorted bit squence
SORTBIT
296
42.31
1183
Accomodate the palace
PALACE
555
52.75
1267
Origin of Life
ORIGLIFE
41
25.10
1268
CN Tower (Easy)
CNEASY
1123
30.75
1269
CN Tower (Hard)
CNHARD
27
11.58
1270
Paint By Numbers
PNTBYNUM
28
23.24
1285
Continuous Fractions Again
CFRAC2
376
41.86
1296
4 values whose sum is 0
SUMFOUR
5120
24.92
1325
Partial Sums
PARTSUM
225
24.79
1326
A Chase In WonderLand
CHASE
412
13.56
1329
Matrix
KPMATRIX
414
17.21
1335
Maze
KPMAZE
67
17.90
1391
Summing to a Square Prime
CZ_PROB1
1429
53.97
1418
The Cats and the Mouse
CATM
3001
33.76
1419
A Game with Numbers
NGM
12077
61.48
1420
Geometry and a Square
GEOM
276
34.08
1421
Goods
FIRM
148
30.65
1431
Projections Of A Polygon
KPPOLY
122
10.39
1433
The Sum
KPSUM
311
17.71
1434
Equation
KPEQU
421
33.46
1435
Vertex Cover
PT07X
4157
34.36
1436
Is it a tree
PT07Y
21146
35.31
1437
Longest path in a tree
PT07Z
20175
39.56
1442
Strange Food Chain
CHAIN
956
19.76
1444
DEL Command II
DELCOMM2
41
9.82
1447
A Game of Toy Bricks
BRCKGAME
42
27.12
1448
3D Cover
COVER2
100
27.12
1454
Memory Distribution
MEMDIS
27
18.00
1457
Help Blue Mary Please! (Act I)
BLUEEQ
13
1.74
1459
The Secret of an Aerolite
AEROLITE
265
43.62
1462
Barbarians
BARB
56
15.42
1463
Robot Number M
ROBOT
80
46.91
1465
On the Way to Find Chris
CHRIS
62
15.35
1466
Blue Mary Needs Help Again
CASHIER
226
20.82
1468
Outside it is now raining
RAIN2
32
23.33
1470
Another Sequence Problem
SEQ2
197
24.56
1471
A Game of Pearls
PRLGAME
45
30.86
1476
Maximum Profit
PROFIT
374
32.34
© Spoj.com. All Rights Reserved. Spoj uses
Sphere Engine
™ © by
Sphere Research Labs
.