Codeforces Solutions

Auto-generated by CFPusher for Shaheer_imam

📊 Stats

Total Problems	Topics
110	19

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📂 Topic-Wise Problems

• *special (1)
• Uncategorized (5)
• binary search (6)
• bitmasks (8)
• brute force (15)
• combinatorics (1)
• constructive algorithms (21)
• data structures (22)
• dp (2)
• dsu (1)
• games (1)
• greedy (49)
• hashing (2)
• implementation (35)
• math (39)
• number theory (8)
• sortings (13)
• strings (18)
• two pointers (12)

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*special

#	Problem	Difficulty	Solution
637B	Chat Order	1200	C++20 (GCC 13-64)

Uncategorized

#	Problem	Difficulty	Solution
2244A	Iskander and Drawings	Unrated	C++23 (GCC 14-64, msys2)
2244B	Nikita and Books	Unrated	C++23 (GCC 14-64, msys2)
2244C	Stepan and Permutation	Unrated	C++23 (GCC 14-64, msys2)
2247A	Zero Sum	Unrated	C++23 (GCC 14-64, msys2)
2247B	Yet Another Constructive	Unrated	C++23 (GCC 14-64, msys2)

binary search

#	Problem	Difficulty	Solution
637B	Chat Order	1200	C++20 (GCC 13-64)
1006C	Three Parts of the Array	1200	C++20 (GCC 13-64)
1498B	Box Fitting	1300	C++20 (GCC 13-64)
1692E	Binary Deque	1200	C++20 (GCC 13-64)
1873F	Money Trees	1300	C++20 (GCC 13-64)
2005B2	The Strict Teacher (Hard Version)	1200	C++20 (GCC 13-64)

bitmasks

#	Problem	Difficulty	Solution
1498B	Box Fitting	1300	C++20 (GCC 13-64)
1559A	Mocha and Math	900	C++23 (GCC 14-64, msys2)
1635A	Min Or Sum	800	C++23 (GCC 14-64, msys2)
1669H	Maximal AND	1300	C++20 (GCC 13-64)
1726B	Mainak and Interesting Sequence	1100	C++23 (GCC 14-64, msys2)
1991B	AND Reconstruction	1100	C++23 (GCC 14-64, msys2)
1994B	Fun Game	1100	C++20 (GCC 13-64)
2200B	Deletion Sort	800	C++20 (GCC 13-64)

brute force

#	Problem	Difficulty	Solution
855A	Tom Riddle's Diary	800	C++20 (GCC 13-64)
1399C	Boats Competition	1200	C++20 (GCC 13-64)
1512A	Spy Detected!	800	C++20 (GCC 13-64)
1582C	Grandma Capa Knits a Scarf	1200	C++20 (GCC 13-64)
1703A	YES or YES?	800	C++23 (GCC 14-64, msys2)
1873A	Short Sort	800	C++23 (GCC 14-64, msys2)
1903A	Halloumi Boxes	800	C++20 (GCC 13-64)
1948A	Special Characters	800	C++20 (GCC 13-64)
1997A	Strong Password	800	C++20 (GCC 13-64)
2106A	Dr. TC	800	C++23 (GCC 14-64, msys2)
2148A	Sublime Sequence	800	GNU C11
2193A	DBMB and the Array	800	C++23 (GCC 14-64, msys2)
2200B	Deletion Sort	800	C++20 (GCC 13-64)
2200C	Specialty String	900	C++20 (GCC 13-64)
2236C	Omsk Programmers	1000	C++20 (GCC 13-64)

combinatorics

#	Problem	Difficulty	Solution
2005A	Simple Palindrome	900	C++23 (GCC 14-64, msys2)

constructive algorithms

#	Problem	Difficulty	Solution
637B	Chat Order	1200	C++20 (GCC 13-64)
1430C	Numbers on Whiteboard	1000	C++20 (GCC 13-64)
1503A	Balance the Bits	1600	C++23 (GCC 14-64, msys2)
1506D	Epic Transformation	1400	C++20 (GCC 13-64)
1509A	Average Height	800	C++23 (GCC 14-64, msys2)
1515A	Phoenix and Gold	800	C++23 (GCC 14-64, msys2)
1559A	Mocha and Math	900	C++23 (GCC 14-64, msys2)
1579E1	Permutation Minimization by Deque	1000	C++23 (GCC 14-64, msys2)
1726B	Mainak and Interesting Sequence	1100	C++23 (GCC 14-64, msys2)
1793C	Dora and Search	1200	C++20 (GCC 13-64)
1831A	Twin Permutations	800	C++20 (GCC 13-64)
1890A	Doremy's Paint 3	800	C++23 (GCC 14-64, msys2)
1900A	Cover in Water	800	C++23 (GCC 14-64, msys2)
1922A	Tricky Template	800	C++20 (GCC 13-64)
1927B	Following the String	900	C++20 (GCC 13-64)
1948A	Special Characters	800	C++20 (GCC 13-64)
1991B	AND Reconstruction	1100	C++23 (GCC 14-64, msys2)
1994B	Fun Game	1100	C++20 (GCC 13-64)
2005A	Simple Palindrome	900	C++23 (GCC 14-64, msys2)
2191A	Array Coloring	800	C++23 (GCC 14-64, msys2)
2227C	Snowfall	800	C++23 (GCC 14-64, msys2)

data structures

#	Problem	Difficulty	Solution
4C	Registration System	1300	C++20 (GCC 13-64)
368B	Sereja and Suffixes	1100	C++20 (GCC 13-64)
501B	Misha and Changing Handles	1100	C++20 (GCC 13-64)
637B	Chat Order	1200	C++20 (GCC 13-64)
1006C	Three Parts of the Array	1200	C++20 (GCC 13-64)
1165B	Polycarp Training	1000	C++20 (GCC 13-64)
1430C	Numbers on Whiteboard	1000	C++20 (GCC 13-64)
1468C	Berpizza	1400	C++20 (GCC 13-64)
1498B	Box Fitting	1300	C++20 (GCC 13-64)
1506D	Epic Transformation	1400	C++20 (GCC 13-64)
1582C	Grandma Capa Knits a Scarf	1200	C++20 (GCC 13-64)
1669E	2-Letter Strings	1200	C++20 (GCC 13-64)
1702C	Train and Queries	1100	C++20 (GCC 13-64)
1703B	ICPC Balloons	800	C++23 (GCC 14-64, msys2)
1714B	Remove Prefix	800	C++20 (GCC 13-64)
1722C	Word Game	800	C++20 (GCC 13-64)
1793C	Dora and Search	1200	C++20 (GCC 13-64)
1807D	Odd Queries	900	C++23 (GCC 14-64, msys2)
1907B	YetnotherrokenKeoard	1000	C++20 (GCC 13-64)
1986C	Update Queries	1100	C++20 (GCC 13-64)
2000C	Numeric String Template	1000	C++20 (GCC 13-64)
2117C	Cool Partition	1200	C++20 (GCC 13-64)

dp

#	Problem	Difficulty	Solution
368B	Sereja and Suffixes	1100	C++20 (GCC 13-64)
2195C	Dice Roll Sequence	1100	C++20 (GCC 13-64)

dsu

#	Problem	Difficulty	Solution
501B	Misha and Changing Handles	1100	C++20 (GCC 13-64)

games

#	Problem	Difficulty	Solution
1899A	Game with Integers	800	C++20 (GCC 13-64)

greedy

#	Problem	Difficulty	Solution
381A	Sereja and Dima	800	C++20 (GCC 13-64)
862A	Mahmoud and Ehab and the MEX	1000	C++20 (GCC 13-64)
1051B	Relatively Prime Pairs	1000	C++23 (GCC 14-64, msys2)
1165B	Polycarp Training	1000	C++20 (GCC 13-64)
1370A	Maximum GCD	800	C++23 (GCC 14-64, msys2)
1399C	Boats Competition	1200	C++20 (GCC 13-64)
1430C	Numbers on Whiteboard	1000	C++20 (GCC 13-64)
1498B	Box Fitting	1300	C++20 (GCC 13-64)
1503A	Balance the Bits	1600	C++23 (GCC 14-64, msys2)
1506D	Epic Transformation	1400	C++20 (GCC 13-64)
1515A	Phoenix and Gold	800	C++23 (GCC 14-64, msys2)
1579E1	Permutation Minimization by Deque	1000	C++23 (GCC 14-64, msys2)
1582C	Grandma Capa Knits a Scarf	1200	C++20 (GCC 13-64)
1635A	Min Or Sum	800	C++23 (GCC 14-64, msys2)
1669H	Maximal AND	1300	C++20 (GCC 13-64)
1702C	Train and Queries	1100	C++20 (GCC 13-64)
1714B	Remove Prefix	800	C++20 (GCC 13-64)
1722D	Line	1100	C++23 (GCC 14-64, msys2)
1792A	GamingForces	800	C++20 (GCC 13-64)
1843B	Long Long	800	C++20 (GCC 13-64)
1873D	1D Eraser	800	C++20 (GCC 13-64)
1873F	Money Trees	1300	C++20 (GCC 13-64)
1900A	Cover in Water	800	C++23 (GCC 14-64, msys2)
1901A	Line Trip	800	C++20 (GCC 13-64)
1903A	Halloumi Boxes	800	C++20 (GCC 13-64)
1927A	Make it White	800	C++20 (GCC 13-64)
1927B	Following the String	900	C++20 (GCC 13-64)
1974A	Phone Desktop	800	C++23 (GCC 14-64, msys2)
1986C	Update Queries	1100	C++20 (GCC 13-64)
1991B	AND Reconstruction	1100	C++23 (GCC 14-64, msys2)
1994B	Fun Game	1100	C++20 (GCC 13-64)
2000D	Right Left Wrong	1200	C++20 (GCC 13-64)
2005A	Simple Palindrome	900	C++23 (GCC 14-64, msys2)
2005B2	The Strict Teacher (Hard Version)	1200	C++20 (GCC 13-64)
2114B	Not Quite a Palindromic String	900	C++20 (GCC 13-64)
2117C	Cool Partition	1200	C++20 (GCC 13-64)
2124A	Deranged Deletions	800	C++20 (GCC 13-64)
2176A	Operations with Inversions	800	C++23 (GCC 14-64, msys2)
2185B	Prefix Max	800	C++23 (GCC 14-64, msys2)
2195C	Dice Roll Sequence	1100	C++20 (GCC 13-64)
2200A	Eating Game	800	C++20 (GCC 13-64)
2200B	Deletion Sort	800	C++20 (GCC 13-64)
2200C	Specialty String	900	C++20 (GCC 13-64)
2225A	A Number Between Two Others	800	C++20 (GCC 13-64)
2227B	Party Monster	800	C++23 (GCC 14-64, msys2)
2236A	Games on the Train	800	C++20 (GCC 13-64)
2236B	Tatar TV Show	800	C++20 (GCC 13-64)
2236C	Omsk Programmers	1000	C++20 (GCC 13-64)
2241A	Divide and Conquer	Unrated	C++23 (GCC 14-64, msys2)

hashing

#	Problem	Difficulty	Solution
4C	Registration System	1300	C++20 (GCC 13-64)
2148A	Sublime Sequence	800	GNU C11

implementation

#	Problem	Difficulty	Solution
4C	Registration System	1300	C++20 (GCC 13-64)
44A	Indian Summer	900	C++20 (GCC 13-64)
118A	String Task	1000	GNU C11
263A	Beautiful Matrix	800	GNU C11
381A	Sereja and Dima	800	C++20 (GCC 13-64)
678C	Joty and Chocolate	1600	C++23 (GCC 14-64, msys2)
734A	Anton and Danik	800	C++23 (GCC 14-64, msys2)
855A	Tom Riddle's Diary	800	C++20 (GCC 13-64)
862A	Mahmoud and Ehab and the MEX	1000	C++20 (GCC 13-64)
1370A	Maximum GCD	800	C++23 (GCC 14-64, msys2)
1430C	Numbers on Whiteboard	1000	C++20 (GCC 13-64)
1468C	Berpizza	1400	C++20 (GCC 13-64)
1501A	Alexey and Train	800	C++23 (GCC 14-64, msys2)
1512A	Spy Detected!	800	C++20 (GCC 13-64)
1676A	Lucky?	800	C++23 (GCC 14-64, msys2)
1690D	Black and White Stripe	1000	C++23 (GCC 14-64, msys2)
1692E	Binary Deque	1200	C++20 (GCC 13-64)
1703A	YES or YES?	800	C++23 (GCC 14-64, msys2)
1703B	ICPC Balloons	800	C++23 (GCC 14-64, msys2)
1714B	Remove Prefix	800	C++20 (GCC 13-64)
1722C	Word Game	800	C++20 (GCC 13-64)
1791C	Prepend and Append	800	C++20 (GCC 13-64)
1807D	Odd Queries	900	C++23 (GCC 14-64, msys2)
1873A	Short Sort	800	C++23 (GCC 14-64, msys2)
1873D	1D Eraser	800	C++20 (GCC 13-64)
1900A	Cover in Water	800	C++23 (GCC 14-64, msys2)
1907B	YetnotherrokenKeoard	1000	C++20 (GCC 13-64)
1922A	Tricky Template	800	C++20 (GCC 13-64)
1974B	Symmetric Encoding	800	C++20 (GCC 13-64)
1997A	Strong Password	800	C++20 (GCC 13-64)
2000D	Right Left Wrong	1200	C++20 (GCC 13-64)
2110A	Fashionable Array	800	C++23 (GCC 14-64, msys2)
2176A	Operations with Inversions	800	C++23 (GCC 14-64, msys2)
2195B	Heapify 1	900	C++20 (GCC 13-64)
2227A	Koshary	800	C++23 (GCC 14-64, msys2)

math

#	Problem	Difficulty	Solution
678C	Joty and Chocolate	1600	C++23 (GCC 14-64, msys2)
735D	Taxes	1600	C++23 (GCC 14-64, msys2)
762A	k-th divisor	1400	C++23 (GCC 14-64, msys2)
1051B	Relatively Prime Pairs	1000	C++23 (GCC 14-64, msys2)
1370A	Maximum GCD	800	C++23 (GCC 14-64, msys2)
1430C	Numbers on Whiteboard	1000	C++20 (GCC 13-64)
1506A	Strange Table	800	C++23 (GCC 14-64, msys2)
1515A	Phoenix and Gold	800	C++23 (GCC 14-64, msys2)
1559A	Mocha and Math	900	C++23 (GCC 14-64, msys2)
1579E1	Permutation Minimization by Deque	1000	C++23 (GCC 14-64, msys2)
1618C	Paint the Array	1100	C++23 (GCC 14-64, msys2)
1669E	2-Letter Strings	1200	C++20 (GCC 13-64)
1669H	Maximal AND	1300	C++20 (GCC 13-64)
1726B	Mainak and Interesting Sequence	1100	C++23 (GCC 14-64, msys2)
1729A	Two Elevators	800	C++23 (GCC 14-64, msys2)
1843B	Long Long	800	C++20 (GCC 13-64)
1873F	Money Trees	1300	C++20 (GCC 13-64)
1899A	Game with Integers	800	C++20 (GCC 13-64)
1901A	Line Trip	800	C++20 (GCC 13-64)
1974A	Phone Desktop	800	C++23 (GCC 14-64, msys2)
1980A	Problem Generator	800	C++23 (GCC 14-64, msys2)
1994B	Fun Game	1100	C++20 (GCC 13-64)
2005A	Simple Palindrome	900	C++23 (GCC 14-64, msys2)
2005B2	The Strict Teacher (Hard Version)	1200	C++20 (GCC 13-64)
2104A	Three Decks	800	C++23 (GCC 14-64, msys2)
2106A	Dr. TC	800	C++23 (GCC 14-64, msys2)
2114B	Not Quite a Palindromic String	900	C++20 (GCC 13-64)
2148A	Sublime Sequence	800	GNU C11
2176A	Operations with Inversions	800	C++23 (GCC 14-64, msys2)
2184A	Social Experiment	800	C++23 (GCC 14-64, msys2)
2193A	DBMB and the Array	800	C++23 (GCC 14-64, msys2)
2195A	Sieve of Erato67henes	800	C++20 (GCC 13-64)
2225A	A Number Between Two Others	800	C++20 (GCC 13-64)
2227A	Koshary	800	C++23 (GCC 14-64, msys2)
2227C	Snowfall	800	C++23 (GCC 14-64, msys2)
2236A	Games on the Train	800	C++20 (GCC 13-64)
2236B	Tatar TV Show	800	C++20 (GCC 13-64)
2236C	Omsk Programmers	1000	C++20 (GCC 13-64)
2241A	Divide and Conquer	Unrated	C++23 (GCC 14-64, msys2)

number theory

#	Problem	Difficulty	Solution
678C	Joty and Chocolate	1600	C++23 (GCC 14-64, msys2)
735D	Taxes	1600	C++23 (GCC 14-64, msys2)
762A	k-th divisor	1400	C++23 (GCC 14-64, msys2)
1051B	Relatively Prime Pairs	1000	C++23 (GCC 14-64, msys2)
1370A	Maximum GCD	800	C++23 (GCC 14-64, msys2)
1899A	Game with Integers	800	C++20 (GCC 13-64)
2195A	Sieve of Erato67henes	800	C++20 (GCC 13-64)
2241A	Divide and Conquer	Unrated	C++23 (GCC 14-64, msys2)

sortings

#	Problem	Difficulty	Solution
637B	Chat Order	1200	C++20 (GCC 13-64)
1165B	Polycarp Training	1000	C++20 (GCC 13-64)
1722D	Line	1100	C++23 (GCC 14-64, msys2)
1792A	GamingForces	800	C++20 (GCC 13-64)
1896A	Jagged Swaps	800	C++20 (GCC 13-64)
1903A	Halloumi Boxes	800	C++20 (GCC 13-64)
1974B	Symmetric Encoding	800	C++20 (GCC 13-64)
1986C	Update Queries	1100	C++20 (GCC 13-64)
2005B2	The Strict Teacher (Hard Version)	1200	C++20 (GCC 13-64)
2110A	Fashionable Array	800	C++23 (GCC 14-64, msys2)
2124A	Deranged Deletions	800	C++20 (GCC 13-64)
2195B	Heapify 1	900	C++20 (GCC 13-64)
2200B	Deletion Sort	800	C++20 (GCC 13-64)

strings

#	Problem	Difficulty	Solution
71A	Way Too Long Words	800	C++23 (GCC 14-64, msys2)
118A	String Task	1000	GNU C11
501B	Misha and Changing Handles	1100	C++20 (GCC 13-64)
734A	Anton and Danik	800	C++23 (GCC 14-64, msys2)
855A	Tom Riddle's Diary	800	C++20 (GCC 13-64)
1582C	Grandma Capa Knits a Scarf	1200	C++20 (GCC 13-64)
1669E	2-Letter Strings	1200	C++20 (GCC 13-64)
1703A	YES or YES?	800	C++23 (GCC 14-64, msys2)
1900A	Cover in Water	800	C++23 (GCC 14-64, msys2)
1907B	YetnotherrokenKeoard	1000	C++20 (GCC 13-64)
1922A	Tricky Template	800	C++20 (GCC 13-64)
1927A	Make it White	800	C++20 (GCC 13-64)
1927B	Following the String	900	C++20 (GCC 13-64)
1974B	Symmetric Encoding	800	C++20 (GCC 13-64)
1997A	Strong Password	800	C++20 (GCC 13-64)
2000C	Numeric String Template	1000	C++20 (GCC 13-64)
2200C	Specialty String	900	C++20 (GCC 13-64)
2236B	Tatar TV Show	800	C++20 (GCC 13-64)

two pointers

#	Problem	Difficulty	Solution
381A	Sereja and Dima	800	C++20 (GCC 13-64)
1006C	Three Parts of the Array	1200	C++20 (GCC 13-64)
1399C	Boats Competition	1200	C++20 (GCC 13-64)
1582C	Grandma Capa Knits a Scarf	1200	C++20 (GCC 13-64)
1690D	Black and White Stripe	1000	C++23 (GCC 14-64, msys2)
1692E	Binary Deque	1200	C++20 (GCC 13-64)
1791C	Prepend and Append	800	C++20 (GCC 13-64)
1793C	Dora and Search	1200	C++20 (GCC 13-64)
1843B	Long Long	800	C++20 (GCC 13-64)
1873D	1D Eraser	800	C++20 (GCC 13-64)
1873F	Money Trees	1300	C++20 (GCC 13-64)
2000D	Right Left Wrong	1200	C++20 (GCC 13-64)

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