PRACTICE ARENA
Problemset
Write a JavaScript function. Run samples, then submit hidden tests. C++ and Python judging is a swarm work package — not missing from the path, just not in this slice.
P1
Two Sum
IntrohashingarraysP2
Valid Parentheses
IntrostackstringsP3
Range Sum
Bronzeprefix-sumsP4
Maximum Subarray
Bronzeprefix-sumskadaneP5
First True
Silverbinary-searchP6
Number of Islands
SilverbfsdfsgridP7
Frequency Mode
IntrohashingarraysP8
Longest Subarray Sum at Most K
Bronzesliding-windowtwo-pointersP9
Minimum Eating Speed
Silverbinary-searchP10
Capacity to Ship Packages
Silverbinary-searchP11
Grid Shortest Path
BronzebfsgridP12
Course Schedule
SilverdfsgraphstopoP13
0/1 Knapsack
SilverdpknapsackP14
Coin Change
SilverdpknapsackunboundedP15
Longest Increasing Subsequence
SilverdplisP16
Min Path Sum
BronzedpgridP14
Distinct Numbers
IntrosortingsetsP15
Movie Festival
BronzegreedysortingP16
Road Reparation
SilvergraphsmstdsuP17
Next Greater
SilverstackmonotonicP18
Connect Ropes
SilverheapgreedyP19
Fenwick Queries
Goldfenwickprefix-sumsP20
GCD of an Array
IntrogcdmathP21
Count Primes
BronzesievemathP22
Modular Exponentiation
BronzemathmodexpP23
Binomial Coefficient
SilvercombinatoricsmodexpP24
String Matching
SilverkmpstringsP25
Distinct Substrings of Length K
SilverhashingstringsP26
Subtree Sizes
SilvertreesdfsP27
Tree Diameter
SilvertreesbfsP28
LCA Queries
GoldtreeslcaP29
Traveling Salesman
GolddpbitmaskP30
Matrix Chain
GolddpintervalP31
Count Without a Digit
Golddpdigit-dpP32
Download Speed
PlatinumflowgraphsP33
Point Location Test
Goldgeometry