Problems
Minimum Sum LCM#1246
Medium · Number theory
LCM Cardinality#1247
Very easy · Number theory · Prime factorization · Combinatorics
Bridged Marble Rings#1248
Medium · Graphs
The first digit of the power#1249
Easy · Math
Fibonacci problem again#1250
Medium · Dynamic programming · Math
Trick or Treat#1251
Medium · Binary Search · Geometry
Working at the Restaurant#1252
Very easy · Implementation
Lights#1253
Easy · Dynamic programming
Darts#1254
Easy · Dynamic programming
Genetics#1255
Easy · Implementation · Strings
Haunted Graveyard#1256
Easy · Graphs
Slalom#1257
Very easy · Geometry
Routing#1258
Easy · Graphs
Happy Telephones#1259
Very easy · Implementation
Stammering Aliens#1260
Easy · Suffix Array · Binary Search · String suffix structures
Football Achievements#1261
Hard · Number theory
Footballers#1262
Hard · Graphs
The Easy Football Problem#1263
Easy · Implementation
Wedding Invitation#1264
Medium · Dynamic programming
Egypt#1265
Very easy · Geometry
CD#1266
Very easy · Breadth-first Search
Knight Moves!#1267
Medium · Graphs · Breadth-first Search
Efficient production#1268
Medium · Graphs
Fractions#1269
Medium · Dynamic programming
Prime Sums#1270
Easy · Brute force · Math