Sphere Online Judge
sign in
News
Problems
basics
challenge
classical
none
partial
riddle
tutorial
Status
Ranking
Forum
SPOJ
time:
2025-09-05
20 : 42 : 17
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
1
2
3
4
5
6
7
8
9
10
11
Next
>
ID
NAME
CODE
USERS
ACC %
280
Lifts
LIFTS
45
17.61
283
Naptime
NAPTIME
675
26.44
286
Selfish Cities
SCITIES
711
39.03
288
Prime or Not
PON
5470
19.31
290
Polynomial Equations
POLYEQ
66
21.91
297
Aggressive cows
AGGRCOW
47479
35.98
303
The Unstable Cube
UCUBE
51
28.10
309
The Room Pattern
RATTERN
48
14.99
325
The Tall Windmills
WINDMILL
82
22.57
328
Bishops
BISHOPS
8988
32.04
329
Calls
CALLS
129
29.63
332
Hard Question
HARDQ
106
33.05
339
Recursive Sequence
SEQ
3835
50.32
351
Ha-noi!
HAN01
386
42.45
359
Alpha Centauri Tennis
ACT
1755
50.27
363
Crane Operator
COPER
5
2.71
364
Pocket Money
LISA
2248
38.59
368
Cobbled streets
CSTREET
5441
50.87
372
The Benefactor
BENEFACT
3099
35.38
376
A concrete simulation
ACS
1734
34.37
381
106 miles to Chicago
CHICAGO
3221
36.51
383
European railroad tracks
EUROPEAN
227
30.31
388
Menu
MENU
352
19.00
389
Use of Hospital Facilities
HOSPITAL
53
15.47
390
Billiard
BILLIARD
903
54.53
391
Railroads
RAILROAD
90
17.63
392
Spin
SPIN
44
26.63
393
Hexagon
HEXAGON
77
48.65
394
Alphacode
ACODE
22974
27.42
395
Anti-prime Sequences
APRIME
349
47.83
396
Hit or Miss
HITOMISS
133
43.10
397
I Conduit
CONDUIT
196
15.57
398
Roll Playing Games
RPGAMES
121
14.67
399
Team Rankings
TRANK
391
53.58
400
To and Fro
TOANDFRO
23447
55.60
401
Translations
TRANSL
137
38.07
402
Hike on a Graph
HIKE
780
40.27
404
Scanner
SCANNER
59
12.57
405
Tin Cutter
TCUTTER
141
29.59
407
Random Number
RNUMBER
48
29.13
408
Jill Rides Again
JRIDE
970
34.26
409
DEL Command
DELCOMM
79
17.60
410
Variable Radix Huffman Encoding
VHUFFM
180
19.26
413
Word Puzzles
WPUZZLES
377
18.26
414
Equatorial Bonfire
BONFIRE
79
28.90
449
Simple Numbers with Fractions Conversion
TCNUMFL
37
15.96
515
Collatz
CLTZ
450
43.13
518
Zig-Zag Permutation
ZZPERM
51
31.25
526
Divisors
DIV
1715
43.75
530
Divisors 2
DIV2
936
52.47
© Spoj.com. All Rights Reserved. Spoj uses
Sphere Engine
™ © by
Sphere Research Labs
.