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Problems Solved Name Difficulty Solved
580B O Kefa and Company  1500  x9884
binary search, sortings, two pointers
676C O Vasya and String  1500  x7629
binary search, dp, strings, two pointers
701C O They Are Everywhere  1500  x6398
binary search, strings, two pointers
1190A O Tokitsukaze and Discard Items  1500  x6336
implementation, two pointers
788A O Functions again  1500  x5823
dp, two pointers
1208B   Uniqueness  1500  x5496
binary search, brute force, implementation, two pointers
6C   Alice, Bob and Chocolate  1500  x5383
greedy, two pointers
1041C   Coffee Break  1500  x5356
binary search, data structures, greedy, two pointers
1251C   Minimize The Integer  1500  x5286
greedy, two pointers
920C   Swap Adjacent Elements  1500  x4854
dfs and similar, greedy, math, sortings, two pointers
1066B   Heaters  1500  x4391
greedy, two pointers
702C   Cellular Network  1500  x4113
binary search, implementation, two pointers
875B   Sorting the Coins  1500  x3977
dsu, implementation, sortings, two pointers
1158A   The Party and Sweets  1500  x3918
binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers
224B   Array  1500  x3741
bitmasks, implementation, two pointers
384B   Multitasking  1500  x2481
greedy, implementation, sortings, two pointers
165C   Another Problem on Strings  1600  x6030
binary search, brute force, dp, math, strings, two pointers
1166C   A Tale of Two Lands  1600  x5129
binary search, sortings, two pointers
1036D   Vasya and Arrays  1600  x4816
greedy, two pointers
1196D2   RGB Substring (hard version)  1600  x4714
data structures, dp, implementation, two pointers
749C   Voting  1600  x4502
greedy, implementation, two pointers
777C   Alyona and Spreadsheet  1600  x4254
binary search, data structures, dp, greedy, implementation, two pointers
660C   Hard Process  1600  x4125
binary search, dp, two pointers
734C   Anton and Making Potions  1600  x3967
binary search, dp, greedy, two pointers
924B   Three-level Laser  1600  x3936
binary search, greedy, two pointers
814C   An impassioned circulation of affection  1600  x3711
brute force, dp, strings, two pointers
939C   Convenient For Everybody  1600  x3418
binary search, two pointers
237C   Primes on Interval  1600  x3217
binary search, number theory, two pointers
1060C   Maximum Subrectangle  1600  x3187
binary search, implementation, two pointers
229A   Shifts  1600  x2681
brute force, two pointers
769B   News About Credit  1600  x2674
*special problem, greedy, two pointers
645C   Enduring Exodus  1600  x2153
binary search, two pointers
873C   Strange Game On Matrix  1600  x2077
greedy, two pointers
175C   Geometry Horse  1600  x869
greedy, implementation, sortings, two pointers
466C   Number of Ways  1700  x15111
binary search, brute force, data structures, dp, two pointers
446A   DZY Loves Sequences  1700  x7118
dp, implementation, two pointers
372A   Counting Kangaroos is Fun  1700  x5816
binary search, greedy, sortings, two pointers
427C   Checkposts  1700  x5450
dfs and similar, graphs, two pointers
1198A   MP3  1700  x5442
sortings, two pointers
279C   Ladder  1700  x4488
dp, implementation, two pointers
1148B   Born This Way  1700  x4383
binary search, brute force, two pointers
493C   Vasya and Basketball  1700  x4157
binary search, brute force, data structures, implementation, sortings, two pointers
1257D   Yet Another Monster Killing Problem  1700  x3921
binary search, data structures, dp, greedy, sortings, two pointers
231C   To Add or Not to Add  1700  x3901
binary search, sortings, two pointers
1041D   Glider  1700  x3753
binary search, data structures, two pointers
616D   Longest k-Good Segment  1700  x3541
binary search, data structures, two pointers
1043D   Mysterious Crime  1700  x3003
brute force, combinatorics, math, meet-in-the-middle, two pointers
895B   XK Segments  1700  x2408
binary search, math, sortings, two pointers
1044A   The Tower is Going Home  1700  x2018
binary search, two pointers
281B   Nearest Fraction  1700  x1997
brute force, implementation, two pointers
46C   Hamsters and Tigers  1700  x1341
two pointers
180E   Cubes  1700  x946
binary search, dp, two pointers
577B   Modulo Sum  1800  x5184
combinatorics, data structures, dp, two pointers
1203D2   Remove the Substring (hard version)  1800  x3664
binary search, greedy, implementation, two pointers
1073C   Vasya and Robot  1800  x2773
binary search, two pointers
1042D   Petya and Array  1800  x2667
data structures, divide and conquer, two pointers
733C   Epidemic in Monstropolis  1800  x2613
constructive algorithms, dp, greedy, two pointers
1282C   Petya and Exam  1800  x1812
greedy, sortings, two pointers
652C   Foe Pairs  1800  x1720
combinatorics, sortings, two pointers
222D   Olympiad  1800  x1578
binary search, greedy, sortings, two pointers
533E   Correcting Mistakes  1800  x1516
constructive algorithms, dp, greedy, hashing, strings, two pointers
79C   Beaver  1800  x1139
data structures, dp, greedy, hashing, strings, two pointers
216D   Spider's Web  1800  x812
binary search, sortings, two pointers
519D   A and B and Interesting Substrings  1900  x3948
data structures, dp, two pointers
439D   Devu and his Brother  1900  x2953
binary search, sortings, ternary search, two pointers
1200D   White Lines  1900  x2658
brute force, data structures, dp, implementation, two pointers
650B   Image Preview  1900  x2590
binary search, brute force, dp, two pointers
853B   Jury Meeting  1900  x2000
greedy, sortings, two pointers