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Codeforces Solutions

This repository contains my solutions of Codeforces problems. They are in C++ language.

If this repository helped you out, please consider giving it a

Index

Sorted by Problem ID

Index Problem ID Problem Name Question Solution
1 1 A Theater Square Question Solution
2 2 A Winner Question Solution
3 4 A Watermelon Question Solution
4 4 C Registration System Question Solution
5 9 A Die Roll Question Solution
6 11 A Increasing Sequence Question Solution
7 17 A Noldbach problem Question Solution
8 22 A Second Order Statistics Question Solution
9 34 A Reconnaissance 2 Question Solution
10 34 B Sale Question Solution
11 41 A Translation Question Solution
12 45 A Codecraft III Question Solution
13 50 A DominoPiling Question Solution
14 59 A Word Question Solution
15 71 A Way Too Long Words Question Solution
16 74 A Room Leader Question Solution
17 110 A Nearly Lucky Number Question Solution
18 112 A Petya And Strings Question Solution
19 116 A Tram Question Solution
20 118 B Present from Lena Question Solution
21 122 A Lucky Division Question Solution
22 122 B Lucky Substring Question Solution
23 131 A cAPS lOCK Question Solution
24 136 A Presents Question Solution
25 141 A Amusing Joke Question Solution
26 144 A Arrival of the General Question Solution
27 148 A Insomnia cure Question Solution
28 151 A Soft Drinking Question Solution
29 155 A I_love_%username% Question Solution
30 158 A Next Round Question Solution
31 158 B Taxi Question Solution
32 173 A Rock-Paper-Scissors Question Solution
33 189 A Cut Ribbon Question Solution
34 200 B Drinks Question Solution
35 208 A Dubstep Question Solution
36 230 B T-primes Question Solution
37 231 A Team Question Solution
38 236 A Boy Or Girl Question Solution
39 263 A Beautiful Matrix Question Solution
40 266 A Stones on the Table Question Solution
41 266 B Queue at the School Question Solution
42 268 A Games Question Solution
43 271 A Beautiful Year Question Solution
44 281 A Word Capitalization Question Solution
45 282 A Bit++ Question Solution
46 313 A Ilya and Bank Account Question Solution
47 318 A Even Odds Question Solution
48 339 A Helpful Maths Question Solution
49 343 B Alternating Current Question Solution
50 344 A Magnets Question Solution
51 349 A Cinema Line Question Solution
52 411 A Password Check Question Solution
53 421 A Pasha and Hamsters Question Solution
54 456 B Fedya and Maths Question Solution
55 466 A Cheap Travel Question Solution
56 474 B Worms Question Solution
57 478 C Table Decorations Question Solution
58 486 A Calculating Function Question Solution
59 489 B BerSU Ball Question Solution
60 492 A Vanya and Cubes Question Solution
61 492 B Vanya and Lanterns Question Solution
62 510 A Fox And Snake Question Solution
63 514 A Chewbaсca and Number Question Solution
64 525 A Vitaliy and Pie Question Solution
65 546 A Soldier and Bananas Question Solution
66 584 A Olesya and Rodion Question Solution
67 599 A Patrick and Shopping Question Solution
68 617 A Elephant Question Solution
69 630 A Again Twenty Five! Question Solution
70 677 A Vanya and Fence Question Solution
71 705 A Hulk Question Solution
72 706 B Interesting drink Question Solution
73 734 A Anton and Danik Question Solution
74 742 A Arpas hard exam and Mehrdads naive cheat Question Solution
75 791 A Bear And Big Brother Question Solution
76 854 A Fraction Question Solution
77 855 A Tom Riddle's Diary Question Solution
78 977 A Wrong Substraction Question Solution
79 1068 A Birthday Question Solution
80 1076 C Meme Problem Question Solution
81 1088 A Ehab and another construction problem Question Solution
82 1118 B Tanya and Candies Question Solution
83 1144 C Two Shuffled Sequences Question Solution
84 1154 A Restoring Three Numbers Question Solution
85 1196 A Three Piles of Candies Question Solution
86 1295 A Display The Number Question Solution
87 1296 A Array with Odd Sum Question Solution
88 1311 A Add Odd or Subtract Even Question Solution
89 1328 A Divisibility Problem Question Solution
90 1341 A Nastya and Rice Question Solution
91 1343 B Balanced Array Question Solution
92 1352 C K-th Not Divisible by n Question Solution
93 1360 B Honest Coach Question Solution
94 1364 A XXXXX Question Solution
95 1367 A Short Substrings Question Solution
96 1367 B Even Array Question Solution
97 1389 A LCM Problem Question Solution
98 1391 B Fix You Question Solution
99 1399 A Remove Smallest Question Solution
100 1426 A Floor Number Question Solution
101 1512 A Spy Detected! Question Solution
102 1582 B Luntik and Subsequences Question Solution
103 1624 B Make AP Question Solution
104 1633 A Div. 7 Question Solution
105 1675 B Make It Increasing Question Solution
106 1676 A Lucky Question Solution
107 1679 A AvtoBus Question Solution
108 1692 A Marathon Question Solution
109 1696 B NIT Destroys the Universe Question Solution
110 1703 A YES or YES Question Solution
111 1703 B ICPC Balloons Question Solution
112 1719 A Chip Game Question Solution
113 1719 B Mathematical Circus Question Solution
114 1721 B Deadly Laser Question Solution
115 1726 A Mainak and Array Question Solution
116 1742 A Sum Question Solution
117 1742 C Stripes Question Solution
118 1746 B Rebellion Question Solution
119 1748 A The Ultimate Square Question Solution
120 1758 B XOR = Average Question Solution
121 1760 A Medium Number Question Solution
122 1761 A Two Permutations Question Solution
123 1765 B Broken Keyboard Question Solution
124 1765 E Exchange Question Solution
125 1765 K Torus Path Question Solution
126 1765 M Minimum LCM Question Solution
127 1766 A Extremely Round Question Solution
128 1773 F Football Question Solution
129 1777 A Everybody Likes Good Arrays! Question Solution
130 1783 A Make it Beautiful Question Solution
131 1788 A One and Two Question Solution
132 1789 A Serval and Mocha's Array Question Solution
133 1791 B Following Directions Question Solution
134 1791 C Prepend and Append Question Solution
135 1792 A Gaming Forces Question Solution
136 1794 B Not Dividing Question Solution
137 1795 B Ideal Point Question Solution
138 1800 A Is It a Cat Question Solution
139 1805 A We Need the Zero Question Solution
140 1806 A Walking Master Question Solution
141 1807 D Odd Queries Question Solution
142 1811 A Insert Digit Question Solution
143 1814 A Coins Question Solution
144 1818 B Indivisible Question Solution
145 1822 A TubeTube Feed Question Solution
146 1822 C Bun Lover Question Solution
147 1828 A Divisible Array Question Solution
148 1828 B Permutation Swap Question Solution
149 1829 A Love Story Question Solution
150 1829 B Blank Spaces Question Solution
151 1829 C Mr. Perfectly Fine Question Solution
152 1829 D Gold Rush Question Solution
153 1831 A Twin Permutations Question Solution
154 1832 A New Palindrome Question Solution
155 1832 B Maximum Sum Question Solution
156 1833 A Musical Puzzle Question Solution
157 1833 B Restore the Weather Question Solution
158 1833 C Vlad Building Beautiful Array Question Solution
159 1834 A Unit Array Question Solution
160 1837 A Grasshopper on a Line Question Solution
161 1837 B Comparison String Question Solution
162 1841 B Keep it Beautiful Question Solution
163 1843 A Sasha and Array Coloring Question Solution
164 1843 B Long Long Question Solution
165 1844 A Subtraction Game Question Solution
166 1845 A Forbidden Integer Question Solution
167 1846 A Rudolph and Cut the Rope Question Solution
168 1846 B Rudolph and Tic-Tac-Toe Question Solution
169 1846 C Rudolf and the Another Competition Question Solution
170 1848 A Vika and Her Friends Question Solution
171 1849 A Morning Sandwich Question Solution
172 1849 B Monsters Question Solution
173 1850 A To My Critics Question Solution
174 1850 B Ten Words of Wisdom Question Solution
175 1850 C Word on the Paper Question Solution
176 1850 D Balanced Round Question Solution
177 1851 A Escalator Conversations Question Solution
178 1851 B Parity Sort Question Solution
179 1851 C Tiles Comeback Question Solution
180 1853 A Desorting Question Solution
181 1855 A Dalton the Teacher Question Solution
182 1855 B Longest Divisors Interval Question Solution
183 1856 B Good Arrays Question Solution
184 1857 A Array Coloring Question Solution
185 1857 B Maximum Rounding Question Solution
186 1857 C Assembly via Minimums Question Solution
187 1858 A Buttons Question Solution
188 1859 A United We Stand Question Solution
189 1860 A Not a Substring Question Solution
190 1862 A Gift Carpet Question Solution
191 1862 B Sequence Game Question Solution
192 1863 A Channel Question Solution
193 1864 A Increasing and Decreasing Question Solution
194 1866 A Ambitious Kid Question Solution
195 1869 A Make It Zero Question Solution
196 1870 A MEXanized Array Question Solution
197 1872 A Two Vessels Question Solution
198 1872 B The Corridor or There and Back Again Question Solution
199 1872 C Non-coprime Split Question Solution
200 1873 A Short Sort Question Solution
201 1873 B Good Kid Question Solution
202 1873 C Target Practice Question Solution
203 1873 D 1D Eraser Question Solution
204 1875 A Jellyfish and Undertale Question Solution
205 1877 A Goals of Victory Question Solution
206 1878 A How Much Does Daytona Cost Question Solution
207 1878 B Aleksa and Stack Question Solution
208 1878 C Vasilije in Cacak Question Solution
209 1879 A Rigged! Question Solution
210 1879 B Chips on the Board Question Solution
211 1881 A Don't Try to Count Question Solution
212 1881 B Three Threadlets Question Solution
213 1881 C Perfect Square Question Solution
214 1883 B Chemistry Question Solution
215 1890 A Doremy's Paint 3 Question Solution
216 1890 B Qingshan Loves Strings Question Solution
217 1891 A Sorting with Twos Question Solution
218 1894 A Secret Sport Question Solution
219 1895 A Treasure Chest Question Solution
220 1895 B Points and Minimum Distance Question Solution
221 1896 A Jagged Swaps Question Solution
222 1896 B AB Flipping Question Solution
223 1898 A Milica and String Question Solution
224 1899 A Game with Integers Question Solution
225 1900 A Cover in Water Question Solution
226 1900 B Laura and Operations Question Solution
227 1901 A Line Trip Question Solution
228 1902 A Binary Imbalance Question Solution
229 1903 A Halloumi Boxes Question Solution
230 1904 A Forked! Question Solution
231 1904 B Collecting Game Question Solution
232 1905 A Constructive Problems Question Solution
233 1905 B Begginer's Zelda Question Solution
234 1905 C Largest Subsequence Question Solution
235 1907 A Rook Question Solution
236 1907 B YetnotherrokenKeoard Question Solution
237 1907 C Removal of Unattractive Pairs Question Solution
238 1909 A Distinct Buttons Question Solution
239 1912 L LOL Lovers Question Solution
240 1913 A Rating Increase Question Solution
241 1913 B Swap and Delete Question Solution
242 1913 C Game with Multiset Question Solution
243 1914 A Problemsolving Log Question Solution
244 1914 B Preparing for the Contest Question Solution
245 1914 C Quests Question Solution
246 1914 D Three Activities Question Solution
247 1914 E1 Game with Marbles (Easy Version) Question Solution
248 1914 E2 Game with Marbles (Hard Version) Question Solution
249 1915 A Odd One Out Question Solution
250 1915 B Not Quite Latin Square Question Solution
251 1915 C Can I Square Question Solution
252 1915 D Unnatural Language Processing Question Solution
253 1915 E Romantic Glasses Question Solution
254 1916 A 2023 Question Solution
255 1916 B Two Divisors Question Solution
256 1916 C Training Before the Olympiad Question Solution
257 1916 D Mathematical Problem Question Solution
258 1917 A Least Product Question Solution
259 1917 B Erase First or Second Letter Question Solution
260 1918 A Brick Wall Question Solution
261 1918 B Minimize Inversions Question Solution
262 1919 A Wallet Exchange Question Solution
263 1919 B Plus-Minus Split Question Solution
264 1920 A Satisfying Constraints Question Solution
265 1920 B Summation Game Question Solution
266 1921 A Square Question Solution
267 1921 B Arranging Cats Question Solution
268 1921 C Sending Messages Question Solution
269 1921 D Very Different Array Question Solution
270 1923 A Moving Chips Question Solution
271 1923 B Monsters Attack! Question Solution
272 1927 A Make it White Question Solution
273 1927 B Following the String Question Solution
274 1927 C Choose the Different Ones Question Solution
275 1927 D Find the Different Ones! Question Solution
276 1927 E Klever Permutation Question Solution
277 1928 A Rectangle Cutting Question Solution
278 1928 B Equalize Question Solution
279 1929 A Sasha and the Beautiful Array Question Solution
280 1929 B Sasha and the Drawing Question Solution
281 1930 A Maximise The Score Question Solution
282 1930 B Permutation Printing Question Solution
283 1931 A Recovering a Small String Question Solution
284 1931 B Make Equal Question Solution
285 1931 C Make Equal Again Question Solution
286 1933 A Turtle Puzzle Rearrange and Negate Question Solution
287 1933 B Turtle Math Fast Three Task Question Solution
288 1933 C Turtle Fingers Count the Values of k Question Solution
289 1945 A Setting up Camp Question Solution
290 1954 C Long Multiplication Question Solution
291 1955 A Yogurt Sale Question Solution
292 1955 B Progressive Square Question Solution
293 1955 C Inhabitant of the Deep Sea Question Solution
294 1955 D Inaccurate Subsequence Search Question Solution
295 1955 E Long Inversions Question Solution
296 1955 F Unfair Game Question Solution
297 1956 A Nene's Game Question Solution
298 1956 B Nene and the Card Game Question Solution
299 1956 C Nene's Magical Matrix Question Solution
300 1957 A Stickogon Question Solution
301 1957 B A BIT of a Construction Question Solution
302 1957 C How Does the Rook Move Question Solution
303 1968 A Maximize Question Solution
304 1968 B Prefiquence Question Solution
305 1968 C Assembly via Remainders Question Solution
306 1968 D Permutation Game Question Solution
307 1968 E Cells Arrangement Question Solution
308 1968 F Equal XOR Segments Question Solution
309 1968 G1 Division + LCP (easy version) Question Solution
310 1969 A Two Friends Question Solution
311 1969 B Shifts and Sorting Question Solution
312 1971 A My First Sorting Problem Question Solution
313 1971 B Different String Question Solution
314 1971 C Clock and Strings Question Solution
315 1971 D Binary Cut Question Solution
316 1971 E Find the Car Question Solution
317 1971 F Circle Perimeter Question Solution
318 1976 A Verify Password Question Solution
319 1976 B Increase Decrease Copy Question Solution
320 1977 A Little Nikita Question Solution
321 1978 A Alice and Books Question Solution
322 1978 B New Bakery Question Solution
323 1979 A Guess the Maximum Question Solution
324 1979 B XOR Sequences Question Solution
325 1979 C Earning on Bets Question Solution
326 1980 A Problem Generator Question Solution
327 1980 B Choosing Cubes Question Solution
328 1980 C Sofia and the Lost Operations Question Solution
329 1980 D GCD-sequence Question Solution
330 1981 A Turtle and Piggy Are Playing a Game Question Solution
331 1981 B Turtle and an Infinite Sequence Question Solution
332 1981 C Turtle and an Incomplete Sequence Question Solution
333 1982 A Soccer Question Solution
334 1982 B Collatz Conjecture Question Solution
335 1982 C Boring Day Question Solution
336 1985 A Creating Words Question Solution
337 1985 B Maximum Multiple Sum Question Solution
338 1985 C Good Prefixes Question Solution
339 1985 D Manhattan Circle Question Solution
340 1985 E Secret Box Question Solution
341 1985 F Final Boss Question Solution
342 1985 G D-Function Question Solution
343 1986 A X Axis Question Solution
344 1986 B Matrix Stabilization Question Solution
345 1986 C Update Queries Question Solution
346 1986 D Mathematical Problem Question Solution
347 1986 E Beautiful Array Question Solution

About Me 👀

I am Shazid Mashrafi.
I am currently studying Computer Science and Engineering & trying to work my way up in the programming world.
Visit my Website and Codeforces account.