Problems
Chain of words#2190
Very easy · Strings
Dialogs on UCM#2191
Very easy · Strings
Nothing was lost#2192
Easy · Strings
Lines#2193
Very easy · Strings
Palindrome Number#2194
Very easy · Strings
Spell check#2195
Medium · Strings
String Transformer#2196
Very easy · Implementation
Antipalindrome#2197
Easy · Strings
Lines#2198
Very easy · Strings
Cyclic k-extension#2199
Medium · Strings
Words#2200
Easy · Strings · Hashing · Brute force
UFO#2201
Medium · Graphs
Programming Technology#2202
Very hard · Graphs
Roads#2203
Easy · Graphs
Weak k-connectivity#2204
Very easy · Graphs
Elevator#2205
Easy · Math
Minibuses#2206
Very easy · Math
Electric train#2207
Very easy · Strings
Taxi#2208
Very easy · Greedy algorithms
Elevators#2209
Easy · Shortest paths · Graphs
The largest sawtooth subsequence#2211
Easy · Implementation
Tariffs#2212
Hard · Sorting · Greedy algorithms
Three-dimensional rooks#2213
Medium · Implementation
Function 9#2214
Easy · Number theory
Foreign Languages#2215
Easy · Strings