MATHEMATICS

Select one of the following problems to solve.

# Name Favorite Solved Level
1028 Collectable Cards Favorite 12,511 3
1093 Vampires Favorite 1,554 3
1138 Digits Count Favorite 868 8
1161 Factorial Sum Favorite 15,873 5
1163 Angry Ducks Favorite 1,162 7
1169 Grains in a Chess Board Favorite 6,226 4
1170 Blobs Favorite 10,541 3
1193 Base Conversion Favorite 3,298 3
1197 Back to High School Physics Favorite 8,665 1
1198 Hashmat the Brave Warrior Favorite 8,646 5
1199 Simple Base Conversion Favorite 3,792 3
1202 White Nights Festival Favorite 894 7
1212 Primary Arithmetic Favorite 4,317 8
1213 Ones Favorite 2,169 5
1214 Above Average Favorite 5,871 3
1219 Colourful Flowers Favorite 1,935 5
1220 The Trip Favorite 940 7
1221 Fast Prime Number Favorite 9,292 6
1230 Integral Favorite 67 10
1232 Rubik Cycle Favorite 233 7
1233 Star Favorite 900 6
1240 Fit or Dont Fit I Favorite 7,023 2
1247 Coast Guard Favorite 3,427 2
1264 An Easy Problem! Favorite 420 7
1279 Leap Year or Not Leap Year and … Favorite 2,075 6
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