SRC_D = d1_zipper.cpp d2_expr.cpp d3_fold.cpp d4_rel.cpp
SRC_E = e1_iota.cpp e2_quot.cpp e3_split.cpp f1_tfold.cpp f2_tmap.cpp f3_monoid.cpp g1_circular.cpp g2_buffer.cpp g3_stats.cpp g4_sparse.cpp g5_bbox.cpp g6_visit.cpp
# c6f3a46a74c6301d7a86ad131bf857c73810f947  e1_iota.cpp
# bc403afac49bc784db4ce9af1eba062fb15ab3b5  e2_quot.cpp
# edb7315e80279debaddb73c59401d3b6b3b9d90a  e3_split.cpp
# e863185dd8c4992c9c1e1ac2ea85c3aecc4f5005  f1_tfold.cpp
# 7c517a2f3773b81de78b00388971ff4e61a25c9b  f2_tmap.cpp
# 1283b9d4a09da46aff706b3451226c49208d2b9b  f3_monoid.cpp
# 743800a038c95f5338a43e197c98106dbb5b299f  g1_circular.cpp
# a8d25f870d5eb0ef81d5a49958b83edf7101aa82  g2_buffer.cpp
# c1d93619c5b01e4a04eff8807f863adbd1a88665  g3_stats.cpp
# f49c3a2d07555be87391210ec76b92e1e930eeab  g4_sparse.cpp
# 577095476187274e42891a49c6e9438124de8bcf  g5_bbox.cpp
# f1bdf88f46213f5c8e10ac785f217494428dd4d3  g6_visit.cpp