MATHEMATICS

Select one of the following problems to solve.

# Name Favorite Solved Level
1028 Collectable Cards Favorite 13,504 3
1093 Vampires Favorite 1,634 3
1138 Digits Count Favorite 950 8
1161 Factorial Sum Favorite 16,569 5
1163 Angry Ducks Favorite 1,221 7
1169 Grains in a Chess Board Favorite 6,566 4
1170 Blobs Favorite 11,086 3
1193 Base Conversion Favorite 3,432 3
1197 Back to High School Physics Favorite 9,058 1
1198 Hashmat the Brave Warrior Favorite 9,006 5
1199 Simple Base Conversion Favorite 3,942 3
1202 White Nights Festival Favorite 919 7
1212 Primary Arithmetic Favorite 4,570 8
1213 Ones Favorite 2,274 5
1214 Above Average Favorite 6,226 3
1219 Colourful Flowers Favorite 2,030 5
1220 The Trip Favorite 1,003 7
1221 Fast Prime Number Favorite 9,761 6
1230 Integral Favorite 68 10
1232 Rubik Cycle Favorite 236 7
1233 Star Favorite 947 6
1240 Fit or Dont Fit I Favorite 7,331 2
1247 Coast Guard Favorite 3,599 2
1264 An Easy Problem! Favorite 446 7
1279 Leap Year or Not Leap Year and … Favorite 2,223 6
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