Volume 66 (6,600-6,699)

Problem ID Title Solution by Most Popular Input by
6600 Spanning Trees in a Secure Lock Pattern
6601 Teaching Hazard
6602 Counting Lattice Squares
6603 Seven Segment Display
6604 Airport Sort
6605 Boxes (1)
6606 Meeting Room Arrangement
6607 Traveling Fool
6608 Cabin Baggage
6609 Minimal Subarray Length
6610 Safari Park
6611 Alice's Print Service
6612 Bob's New Toy
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6613 Collision (1)
6614 Arnold
6615 Easy Problem Once More
6616 Winter's Coming
6617 Graph Reconstruction
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6618 Skycity
6619 LIKE vs CANDLE
6620 Josephina and RPG
6621 Pocket Cube
6622 Absurdistan Roads
6623 Battle for Silver
6624 Card Trick (2)
6625 Diagrams & Tableaux
6626 Exponential Towers
6627 First Date
6628 Grachten
6629 Highway of the Future
6630 Infix to Prefix
6631 Jingle Balls
6632 GPA
6633 Poor Warehouse Keeper
6634 Campus Design
6635 Shoot
6636 Circular Lamps
6637 Lunch Time
6638 Drunk
6639 Cirnoâs Present
6640 Wall Painting
6641 Ball (1)
6642 D Tree
6650 Falling Ants
6652 Game of Throne
6653 Pattern Locker
6654 Pearl Chains
6655 Two Points Revisited
6656 Watching the Kangaroo
6657 GCD XOR
6658 Fiasco
6659 Dromicpalin Substrings
6660 Fill the Cuboid
6661 Equal Sum Sets
6662 The Last Ant
6663 Count the Regions
6664 Clock Hands (2)
6665 Dragon’s Cruller
6666 Directional Resemblance
6667 Longest Chain
6668 Don’t Burst the Balloon
6669 Hidden Tree
6670 C(O|W|A*RD*|S)* CROSSWORD Puzzle
6671 ASCII Puzzle
6672 Bonus Cards
6673 Cactus Automorphisms
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6674 Dictionary (1)
6675 Easy Geometry
6676 Fraud Busters
6677 Green Energy
6678 Hack Protection
6680 Join the Conversation
6681 Kabaleo Lite
6692 Lucky Number
6693 Flow Game
6694 Toy Boxes
6695 Computing Inverses
6696 A Generalized N-Queens Problem
6697 Homework Evaluation
6698 Sightseeing Bus Drivers
6699 Surrounding a House