SRC_D = d1_account.cpp d2_shapes.cpp d3_expr.cpp d4_destroy.cpp d5_factory.cpp
SRC_E = e1_resistance.cpp e2_perimeter.cpp e3_fight.cpp f1_bom.cpp f2_circuit.cpp f3_loops.cpp g1_prisoner.cpp g2_bexpr.cpp g3_sexpr.cpp g4_network.cpp g5_filter.cpp g6_geometry.cpp
# 788380e1b7f9bae045725e3114d5b9ca2bc78288  e1_resistance.cpp
# 85ccbfa55e959791f50bc8a78d735f76ed6bb04d  e2_perimeter.cpp
# 26a3c194a41c248fa7a49c7780e0866e3dfdfb13  e3_fight.cpp
# 252ca9e3064edc5301ce1d84570936e2092b1e3a  f1_bom.cpp
# 929edba688fdea060c81d067dc1fb5186712712e  f2_circuit.cpp
# b3d5b3fa531f5f40acd1837c0a567c56e2bf739a  f3_loops.cpp
# 6a949269b0fe4e74519d011ad3f3cb86705a3c76  g1_prisoner.cpp
# cdf9951a4a6fb5eaaa476766589c4b721ac0e253  g2_bexpr.cpp
# faf0150d0ca6095c8a7f3c81f78f89059d52652e  g3_sexpr.cpp
# 2efbcc114189085cec4a287eb8c02bb82eea2426  g4_network.cpp
# f14c4b2013aa1e1500e3d910ecd1864fa64cd5f0  g5_filter.cpp
# bb4c48d6c577617f1e641c3faa1d8b6483a29b0a  g6_geometry.cpp