[Upsolving] Loki Mini Contest problems

A

Too odd

Limits: 10 seconds / 1 MB

Type: pass-fail


B

Nonpartition of unity

Limits: 10 seconds / 1 MB

Type: pass-fail


C

Two, but not four

Limits: 10 seconds / 1 MB

Type: pass-fail


D

IMO 1989 problem 1

Limits: 10 seconds / 1 MB

Type: pass-fail