Sphere Online Judge
sign in
News
Problems
basics
challenge
classical
none
partial
riddle
tutorial
Status
Ranking
Forum
SPOJ
time:
2025-09-06
00 : 52 : 50
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 tutorial problems
<
Previous
1
2
3
4
5
6
7
8
9
10
11
Next
>
ID
NAME
CODE
USERS
ACC %
9465
Spectrum of colours
SPECTRUM
56
65.81
9500
Bit counts
BITCNTR
1610
63.83
9501
Best balanced diet
SETRR
11
20.69
9514
Parsing URL
TETRSIGM
26
33.68
9533
Kindergarten Counting Game
KINDJ
644
35.38
9536
Calculating very big numbers very quickly
MODPOW
154
27.04
9573
Spot the largest string
SPOTIT
19
22.89
9594
Count the strings
NUMSTR
23
44.62
9595
Fast addition
MEGAUSS
196
46.22
9598
Get me correct
GETCORR
71
19.05
9605
Warmup Problem A
C2011AA
23
30.21
9639
Doing Nothing
DONOTHIN
1273
45.63
9654
Prime Count
PCOUNT
69
19.23
9737
Traversal(Easy)
BST1
73
47.64
9739
Not Fibonacci please
FIBOFAST
139
37.07
9754
Egypt
SCPC11D
3270
48.06
9808
Topological Sorting
TOPOSORT
6208
30.71
9815
Measuring the odds
WPC4A
10
33.33
9819
Out of place
WPC4E
140
64.82
9821
Gaming begins here
WPC4G
99
62.98
10143
To nisu istine
ZVONIMIR
7
7.69
10208
Overestimate
OVFL
137
38.71
10209
Theory of Computation
STRSPL
32
40.37
10211
The Collatz Sequence
COLL
83
7.78
10212
Row Max Average
MAVRG
24
16.57
10234
Here Be Dragons
AMR11G
1689
50.09
10238
Arabic and English
ACPC11A
720
42.69
10331
Sample
KDBGTST1
40
10.73
10333
DIFFICULT INTERVIEW
DIFFICUL
78
49.75
10347
Roman Numerals
ROMANN
139
48.24
10362
TRIVIADOR
QWERTY04
98
40.13
10364
TREE SHAPES
CODEIT01
26
40.91
10365
PICK UP DROP ESCAPE
CODEIT02
400
28.33
10373
Help Balaji!
ABA12A
1173
49.47
10379
Number Divisiblity
IPLUS4
69
32.95
10559
PRIMES20
PRIMES20
42
54.62
10601
Spiral numbers
SPRLNMS
88
50.00
10681
MAG
BYTESA
36
64.18
10724
Sum of Tetranacci numbers (easy)
TETRASUM
254
63.52
10817
Easy Factorization
FACTCG
340
26.86
11031
Bank Robbers
BANKROBB
155
46.72
11032
Maximum element of an array
MAXINARR
314
43.50
11034
Count inversions in a small array
COUNTINV
275
31.08
11040
UJ Test 1
UJTEST1
12
9.33
11062
Binary search
BSEARCH1
4983
19.11
11095
Symmetric or not
SYMN
135
38.16
11096
Triple Zeros
TRIZ
84
35.43
11097
Easy Powers
EPO
69
41.30
11100
Fun with Fibonacci Series
FIBOFUN
308
19.20
11106
Dice Problem
MAIN12D
284
32.05
© Spoj.com. All Rights Reserved. Spoj uses
Sphere Engine
™ © by
Sphere Research Labs
.