index | submit | rank | book

Rizvan @ Computer Science by Example

[user settings]

71 problems solved

72 problems scored

72 problems tried

position 12 on the rank

score: 71 72 72 72 72 (=1 ≥⅔ ≥½ ≥⅓ >0)

Latest submissions

timestamp (UTC)	problem	language	score	runtime	reason
2026-08-17 21:36:04	max-subarray	c	4/6	2ms 1MB	incorrect output
2026-08-17 21:31:25	max-subarray	c	4/6	2ms 1MB	incorrect output
2026-08-17 21:19:13	max-subarray	c	4/6	2ms 1MB	incorrect output
2026-08-17 21:10:48	max-subarray	c	2/6	2ms 1MB	incorrect output
2026-08-17 18:50:05	cash	c	6/6	0ms 1MB

Scores by problem

problem	best score	tries	languages
Chapter 3: Programing Basics
hello	6/6	1	c
cscx	3/3	1	c
repeat1	10/10	1	c
hi1	10/10	1	c
age1	10/10	1	c
swap1	10/10	1	c
triple1	12/12	3	c
inc1	12/12	1	c
add1	12/12	1	c
mult1	12/12	2	c
box1	12/12	2	c
oddeven1	12/12	1	c
order1	12/12	1	c
good1	30/30	1	c
signum1	12/12	1	c
triangle1	12/12	1	c
factorial1	12/12	2	c
power1	12/12	4	c
fibonacci1	12/12	1	c
hello2	60/60	1	c
total	10/10	1	c
countdown1	10/10	1	c
seq1	10/10	1	c
Chapter 4: Programming
repeat	6/6	1	c
hi	6/6	1	c
age	6/6	1	c
swap	6/6	1	c
owes	6/6	2	c
triple	6/6	2	c
inc	6/6	1	c
add	6/6	1	c
mult	6/6	1	c
pi	6/6	1	c
box	6/6	4	c
oddeven	6/6	1	c
order	6/6	1	c
good	6/6	1	c
bmi	4/4	1	c
triangle	5/5	2	c
calc	5/5	1	c
factorial	6/6	2	c
power	6/6	1	c
fibonacci	6/6	2	c
index-string	6/6	1	c
repeat-list	6/6	1	c
index-ints	6/6	1	c
replace	6/6	1	c
Chapter 5: Mathematical Foundations
digit-sum	6/6	1	c
digit-count	6/6	1	c
digit-reverse	6/6	1	c
digit-palindrome	6/6	1	c
bin2dec	6/6	1	c
dec2bin	6/6	6	c
hex2dec	6/6	1	c
dec2hex	6/6	2	c
base2base	6/6	2	c
bool-not	6/6	1	c
bool-and-or	6/6	6	c
discount	6/6	1	c
timetable	6/6	1	c
intersect	6/6	5	c
bool-calc	6/6	2	c
set-member	6/6	7	c
set-ui	6/6	1	c
set-calc	6/6	1	c
set-size	6/6	1	c
Chapter 6: Algorithms
gcd	6/6	2	c
lcm	6/6	1	c
roundiv	12/12	10	c
primes	6/6	4	c
cash	6/6	5	c
max-subarray	4/6	4	c
sorting	-	0
Chapter 7: Computer Foundations
file-write	-	0
file-read	-	0
run-count	-	0
hello-cmd	-	0
erro	-	0
errxit	-	0
bytes2bits	-	0
bits2bytes	-	0
kilobytes	-	0
bconv	-	0
file-size	-	0
hconv	-	0
Bonus exercises
function1	-	0
function	-	0
ordinal	-	0
rectangle	-	0
apply	-	0
rot13	-	0
caesar	-	0
brutus	-	0
stack	-	0
queue	-	0
rel-ltom	-	0
rel-mtol	-	0
rel-member	-	0
rel-properties	-	0
rel-composition	-	0

index | submit | rank | book