Participant: cos

Representing Japan using C++.

**Qualification Round**: ranked 1137 (135 points)
Tic-Tac-Toe-Tomek		Lawnmower		Fair and Square			Treasure
S	L	S	L	S	L1	L2	S	L
C++	C++	C++	C++	C++	C++		C++

**Round 1B**: ranked 457 (64 points)
Osmos		Falling Diamonds		Garbled Email
S	L	S	L	S	L
C++	C++	C++	C++

**Round 2**: ranked 65 (63 points)
Ticket Swapping		Many Prizes		Erdős–Szekeres		Multiplayer Pong
S	L	S	L	S	L	S	L
C++	C++	C++	C++	C++	C++

**Round 3**: ranked 80 (34 points)
Cheaters		Rural Planning		Are We Lost Yet?		Observation Wheel
S	L	S	L	S	L	S	L
C++	C++	C++				C++