MATHEMATICS

Select one of the following problems to solve.

# Name Favorite Solved Level
1028 Collectable Cards Favorite 13,077 3
1093 Vampires Favorite 1,610 3
1138 Digits Count Favorite 935 8
1161 Factorial Sum Favorite 16,318 5
1163 Angry Ducks Favorite 1,184 7
1169 Grains in a Chess Board Favorite 6,460 4
1170 Blobs Favorite 10,891 3
1193 Base Conversion Favorite 3,392 3
1197 Back to High School Physics Favorite 8,897 1
1198 Hashmat the Brave Warrior Favorite 8,874 5
1199 Simple Base Conversion Favorite 3,886 3
1202 White Nights Festival Favorite 910 7
1212 Primary Arithmetic Favorite 4,477 8
1213 Ones Favorite 2,217 5
1214 Above Average Favorite 6,100 3
1219 Colourful Flowers Favorite 1,999 5
1220 The Trip Favorite 955 7
1221 Fast Prime Number Favorite 9,560 6
1230 Integral Favorite 67 10
1232 Rubik Cycle Favorite 236 7
1233 Star Favorite 935 6
1240 Fit or Dont Fit I Favorite 7,183 2
1247 Coast Guard Favorite 3,558 2
1264 An Easy Problem! Favorite 439 7
1279 Leap Year or Not Leap Year and … Favorite 2,170 6
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