Problems
Different numbers#8263
Hard · Implementation
Drawing#8264
Easy · Implementation
The Last Battle#8265
Easy · Implementation · Prefix Sums
Schedule#8266
Easy · Implementation
Pizza#8267
Hard · Combinatorics · Bitmasks · Number theory
Retweet twinter#8268
Medium · Implementation · Strings
Fragmentation#8269
Very easy · Sorting
The closest in line with the given heights#8270
Easy · Brute force
A sequence of numbers similar to the Fibonacci row#8271
Easy · Dynamic programming
Uzhland Union Bank#8273
Easy · Prefix Sums · Implementation
Simple Sum#8274
Easy · Prefix Sums · Implementation
Meteors#8275
Very hard · Prefix Sums · Implementation
Sapper#8276
Hard · Segment Tree · Range queries
XOR#8277
Very easy · Prefix Sums · Bitwise Operations
Sum of even numbers#8278
Easy · Prefix Sums · Math
Sum of divisors#8279
Very easy · Brute force
The number of even divisors#8280
Very easy · Brute force · Number theory
Mushrooms (Гриби)#8281
Very easy · Math
Stars#8282
Very easy · Implementation · Math
Music#8283
Very easy · Brute force
Balloon (Balloon)#8284
Very easy · Greedy algorithms · Sorting
Poetry#8285
Medium · Dynamic programming
Number of syllables#8286
Easy · Implementation
Petro is an entrepreneur#8287
Easy · Math
Programming olympiad#8288
Easy · Implementation