由 aaddfg 於 星期五 十一月 03, 2006 8:56 pm
#ed_op#DIV#ed_cl##ed_op#SPAN class=postbody#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN class=name#ed_cl##ed_op#A name=""#ed_cl##ed_op#/A#ed_cl##ed_op#FONT size=2#ed_cl##ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#SPAN class=name#ed_cl##ed_op#FONT size=2#ed_cl#補充一下#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN class=name#ed_cl##ed_op#FONT size=2#ed_cl#滿足(x,12)=1意思就是x不能有2,3的因數#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN class=name#ed_cl##ed_op#FONT size=2#ed_cl#所有的數-2的倍數-3的倍數+6的倍數#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN class=name#ed_cl##ed_op#FONT size=2#ed_cl#1+2+3+....+300-(2+4+6+.....+300)-(3+6+9+......+300)+(6+12+18+......+300)#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN class=name#ed_cl##ed_op#FONT size=2#ed_cl#=300*301/2-150*302/2-100*303/2+50*306/2#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN class=name#ed_cl##ed_op#FONT size=2#ed_cl#=15000#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl#