Improve Boost Accumulators examples
Improve Boost Accumulators examples

zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend