$ g++ a67.cpp linear.cpp;  a.exe
srand=1147705728
           K=20
        iniN=70
       depth=6
pu.purifieds=43
excess purified=1.528919
excess original=1.553108

$ g++ a67.cpp linear.cpp;  a.exe
srand=1147705748
           K=20
        iniN=70
       depth=6
pu.purifieds=44
excess purified=1.480766
excess original=1.554613

$ g++ a67.cpp linear.cpp;  a.exe
srand=1147705869
           K=10
        iniN=70
       depth=4
pu.purifieds=20
excess purified=1.089703
excess original=1.615991


           K=24
        iniN=90
       depth=7
pu.purifieds=49
excess purified=1.552458
excess original=1.592498


           K=24
        iniN=90
       depth=7
pu.purifieds=51
excess purified=1.547197
excess original=1.612741
srand=1147707553


srand=1147708656
           K=15
        iniN=70
       depth=5
pu.purifieds=30
excess purified=1.320284
excess original=1.436563

degree=5;

           K=15
        iniN=70
       depth=5
pu.purifieds=31
excess purified=1.407680
excess original=1.517991

degree=3;

$ g++ a67.cpp linear.cpp;  a.exe
srand=1147709064
           K=10
        iniN=70
       depth=3
pu.purifieds=29
excess purified=1.490847
excess original=1.824896


$ g++ a67.cpp linear.cpp;  a.exe
srand=1147709126
degree=3
           K=10
        iniN=70
       depth=3
pu.purifieds=28
excess purified=1.451297
excess original=4.126437

$ a.exe
srand=1147709227
degree=3
           K=14
        iniN=70
       depth=4
pu.purifieds=28
excess purified=1.816324
excess original=2.463937

$ a.exe
srand=1147709269
degree=3
           K=15
        iniN=70
       depth=4
pu.purifieds=30
excess purified=2.191509
excess original=3.303275

$ a.exe
srand=1147709297
degree=3
           K=15
        iniN=70
       depth=4
pu.purifieds=32
excess purified=2.422838 #purified is worst
excess original=2.102153

$ a.exe
srand=1147709410
degree=5
           K=15
        iniN=70
       depth=5
pu.purifieds=30
excess purified=1.389005 #purified is worst
excess original=1.386450

$ a.exe
srand=1147709476
degree=5
           K=15
        iniN=70
       depth=5
pu.purifieds=30
excess purified=1.295306
excess original=2.856347

$ g++ a67.cpp linear.cpp; a.exe
srand=1147709513
degree=5
           K=16
        iniN=70
       depth=5
pu.purifieds=32
excess purified=1.491914
excess original=1.627532

$ g++ a67.cpp linear.cpp; a.exe
srand=1147709530
degree=5
           K=16
        iniN=70
       depth=5
pu.purifieds=33
excess purified=1.501779
excess original=3.149086 #very good example

$ a.exe
srand=1147709546
degree=5
           K=16
        iniN=70
       depth=5
pu.purifieds=33
excess purified=1.438230
excess original=1.653086