codechef

https://www.codechef.com/

Problems

Code	Problem	Solution
ADDNATRL	Add Natural Numbers	Java
AGECAT1	Age Category	Java
AIRLINE	Airline Restrictions	Java
ALTERNATEDIV	Alternating Divisibility	Java
ALTSTR	Alternating String	Java
ANGTRICH	Triangle With Angle	Java
ATTNDNCE	Check Attendance	Java
AVGARR	Average Array	Java
AXNODR	Dazzling AXNODR Challenge	Java
BALREV	Balanced Reversals	Java
BATH	Bath in Winters	Java
BLACKCEL	Black cells in a chessboard	Java
BOMBTHEBASE	Bomb the base	Java
BOOKLIST	List of Books	Java
BSCOST	Binary String Cost	Java
BUDGET_	Monthly Budget	Java
BULBLIFE	Good Quality Bulbs	Java
BULLET	Mario and Bullet	Java
BUS	Bus full of passengers	Java
BUTYPAIR	Beautiful Pairs	Java
BUYPLSE	Buy Please	Java
CABS	The Cheaper Cab	Java
CARVANS	Carvans	Java
CDIGLNUM	Chef and Digits of Large Numbers	Java
CEILSUM	Ceiling Sum	Java
CHEFBOTTLE	Chef and Water Bottles	Java
CHEFCHOCO	Chef and Chocolates	Java
CHEFPAGES	Important Pages on CodeChef	Java
CHEFRACES	Chef and Races	Java
CHFCLASS	Akash and Missing Class	Java
CHFDBT	Akash and Function	Java
CHFGCD	Chef and GCD	Java
CHFPARTY	Chef and Party	Java
CHFPLN	Chef In Infinite Plane	Java
CHFSPL	Chef and Spells	Java
CHSFORMT	Chess Format	Java
CODEA1	First Day	Java
CODEA2	Growing Rivalry	Java
CODEA3	Pass or Fail	Java
CORONA	India Fights Corona	Java
COURSEREG	Course Registration	Java
CREDCOINS	CRED Coins	Java
CREDSCORE	Credit score	Java
CRICRANK	Cricket Ranking	Java
CRICUP	Cup Finals	Java
CROSBLK	Crossing Blocks	Java
DIFACTRS	Factors Finding	Java
DIGARR	Rearranging digits to get a multiple of 5	Java
DIGSMPAR	Digit Sum Parities	Java
DISCUS	Discus Throw	Java
DISTDILEM	Distinct Dilemma	Java
DRAWFIX	Draw Fixing	Java
ECOCLASS	Economics Class	Java
EMAILREM	Email Reminders	Java
ENDCORR	End of Corruption	Java
ETUP	Even tuples	Java
EVENGAME	Even Sum	Java
EXPIRY	Expiring Bread	Java
EXTRICHK	Triangle Everywhere	Java
FBC	Fill the Bucket	Java
FINDMELI	Find Me	Java
FINDSHOES	Finding Shoes	Java
FLIPSORT	Flip Sorting	Java
FLOW001	Add Two Numbers	Java
FLOW007	Reverse The Number	Java
FODCHAIN	Food Chain	Java
FUNHAND	Funny Hand	Java
GENIUS	Exact Marks	Java
GFTSHP	Gift Shop and Coupon	Java
GROUPASSGN	Group Assignment	Java
HARDBET	Hardest Problem Bet	Java
HAWKINTERN	Hawkeye Intern	Java
HDIVISR	Highest Divisor	Java
HS08TEST	ATM	Java
IAREVERS	Reverse	Java
INCRIQ	Increase IQ	Java
INTEGERGAME	Integer Game	Java
INTEST	Enormous Input Test	Java
ISBOTH	Is Both Or Not	Java
JAG	Just a Graph	Java
JAVELIN	Javelin Qualification	Java
JGAMES	Janmansh and Games	Java
JMARKET	Janmansh at Fruit Market	Java
JOKRBTMN	Joker and Batman	Java
KMAX2	K-th Maximum	Java
LAPIN	Lapindromes	Java
LEADGAME	Lead Game	Java
LONGPALI	Longest Palindrome	Java
LTIME	Lunchtime	Java
LUCKFOUR	Lucky Four	Java
MANIPULATE	Ezio and Guards	Java
MAX01EVSWP	Same Parity Swaps in Binary Strings	Java
MAXMEXPATH	MEX on Trees	Java
MAXTHEMIN	Maximize the Minimum	Java
MEXSPLIT	Equal Mex Splitting	Java
MINCARS	Minimum Cars required	Java
MINCOINS	Minimum number of coins	Java
MINCOLOR	Minimum Coloring	Java
MISS_NUM	Missing Numbers	Java
MODCARDS	Min Mod Shuffle	Java
MTE	Make Them Equal	Java
NANDXOR	Dragonado And XOR	Java
NONADJFLIP	Non Adjacent Flips	Java
NOTUNIT	Dazzling GCD Pair	Java
OLYRANK	Olympics Ranking	Java
PAIRPAIN	Pair Pain	Java
PALINPAIN	Palindrome Pain	Java
PENALTY	Penalty Shots	Java
POSPROD	Positive Products	Java
PRDW02	String Issue	Java
PRIMESM	Prime Sum	Java
PROBDIFF	Problem Difficulties	Java
PROGLANG	Programming Languages	Java
RATING	The Rating Dilemma	Java
RECSTI	Sticks and Rectangles	Java
REDALERT	Red Alert	Java
REPEAT	Odd Repeat	Java
REVMEE	Reverse Me	Java
REVSTRPT	Reverse Star Pattern	Java
RNGEODD	Range Odd	Java
SALE2	Buy 2 Get 1 Free	Java
SECLAR	Find Second Largest	Java
SHOEFIT	Shoe Fit	Java
SHUFFLIN	Shuffling Parities	Java
SIGNMOVE	Sign Moves	Java
SORTROWS	Sorting Rows of Numbers	Java
SPLITPAIR	Sad Splits	Java
SQALPAT	Alternative Square Pattern	Java
STRP	String protocol	Java
SUBSTRING	Substring of a Substring	Java
SUB_XOR	Subarray XOR	Java
SUMEVOD	Sum Is Everywhere	Java
SWAPCW	Swapping Chefs Way	Java
TEST	Life, the Universe, and Everything	Java
THREDICE	Three Dices	Java
THREEPTS	Three Points	Java
THREETOPICS	The Three Topics	Java
TILINGS	Number of Tilings	Java
TOTCRT	Total Correct Submissions	Java
TRAINPLN	Training Plans	Java
TRANSFORM	Mario and Transformation	Java
TRAVELPS	Travel Pass	Java
TRIVALCH	Valid Triangle Or Not	Java
TRUESCORE	Is the Score Consistent	Java
TYRE	Tyre problem	Java
UNCHANGEDOR	The Unchanging OR	Java
VALTRI	Raju and His Trip	Java
VOLCONTROL	Volume Control	Java
VOTERSDI	Discrepancies in the Voters List	Java
WATERCOOLER1	The Cooler Dilemma 1	Java
WATERCOOLER2	The Cooler Dilemma 2	Java
WORDLE	Wordle	Java
WORDLIST	Word List	Java
XLSQUARE	Large Square	Java
XORBIT	XOR Bit	Java
XORORED	XOR-ORED	Java
ZCO14003	Smart Phone	Java