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12 answers
23 votes
1k views
Ternary Triangles
25 answers
23 votes
1k views
Binary Sequences
11 answers
22 votes
882 views
4 bookmarks
Mark a UKMT IMC Paper
1 answers
21 votes
679 views
3 bookmarks
Matrices Generated Using Rectangles
11 answers
21 votes
2k views
2 bookmarks
Unicode Fractions
20 answers
20 votes
2k views
1 bookmarks
Words that Contain Digits
25 answers
17 votes
2k views
1 bookmarks
Binary Substrings
5 answers
16 votes
940 views
3 bookmarks
Wolves and Chickens
14 answers
14 votes
872 views
1 bookmarks
Compare Two Lists by Their Maximum
6 answers
7 votes
438 views
Alice's Tea Party
2 answers
6 votes
225 views
Balanced and Centre-Free Sets of Points
1 answers
5 votes
296 views
2 bookmarks
Bobby's Booby-Trapped Safe
1 answers
3 votes
293 views
1 bookmarks
Maximum Area of a Polygon with Vertices of a Polygon
1 answers
2 votes
259 views
Syllables in a Number