added exercise solution array
added exercise solution array

DeLaSalleUniversity-Manila/LBYEC72_AY_2015_16,DeLaSalleUniversity-Manila/LBYEC72_AY_2015_16,melvincabatuan/LBYEC72_AY_2015_16,melvincabatuan/LBYEC72_AY_2015_16