Issue 18 (2014)

Total problems: 119 — Solved: 19, Partially solved: 1, Open: 99.

The following problem numbers are missing from the official book: 18.101.

18.1 18.2 18.3 18.4 18.5 18.6 18.7 18.8 18.9 18.10 18.11 18.12 18.13 18.14 18.15 18.16 18.17 18.18 18.19 18.20 18.21 18.22 18.23 18.24 18.25 18.26 18.27 18.28 18.29 18.30 18.31 18.32 18.33 18.34 18.35 18.36 18.37 18.38 18.39 18.40 18.41 18.42 18.43 18.44 18.45 18.46 18.47 18.48 18.49 18.50 18.51 18.52 18.53 18.54 18.55 18.56 18.57 18.58 18.59 18.60 18.61 18.62 18.63 18.64 18.65 18.66 18.67 18.68 18.69 18.70 18.71 18.72 18.73 18.74 18.75 18.76 18.77 18.78 18.79 18.80 18.81 18.82 18.83 18.84 18.85 18.86 18.87 18.88 18.89 18.90 18.91 18.92 18.93 18.94 18.95 18.96 18.97 18.98 18.99 18.100 18.101 (missing) 18.102 18.103 18.104 18.105 18.106 18.107 18.108 18.109 18.110 18.111 18.112 18.113 18.114 18.115 18.116 18.117 18.118 18.119 18.120