Đề thi học sinh giỏi lớp 9 THCS tỉnh Lâm Đồng môn Tin học

   (Đề thi có 02 trang, gồm 3 bi)   !"#"$!"## $ Thời gian : 150 phút (không kể thời gian giao đề) #%&!&!"## '()*+, )/01  23450 236078450759 236078: 236078:: # ;<=> ?@ =A@ =A =A: ! BC DE@ DEA@ DEA DEA: F ; G :A@ :A :A: E50#1(6 điểm);<=>?@  !"#$%&'()*+!" ,-.*+!"/01'23*+!"*014% 56*7+8199+!",-:- H70I(J5K1,/K6078=ALM91 ; N3L-O()023LM9!PQRS"TRT#""U ; VN3L)0WX)/8KR9Y0VN3LLM9,ZPQ3L([23,\]9^3L@ S,_,L0_)*`,_,/3/](a)3/')#b/K^3L,_,/UA H70I(*]1L/0*]6078=A:J`)*a,\],_,X/O3)c[233Ld]S3W(,ZU/Ke,VN3L )/f3L4_Kg/f3L,ZX/O3)c[233Ld]hA iaVj1 =A =A: << => < ? >> @ A BA =  S!R!U Ke,1 =A =A: << => =C > >> @ A BA =  /K3L,KX/]3)([833L(] E50!1(7 điểm)BCDE@ D6EF-*G62H=$=$$<$>$I$'(H'JFKL- E=M=$EM=$EME;=NE;OP 56FQGR4,S:-0HEF-H- H70I(J5K1,/K6078DEA,/k]PQST!"""""""""U H70I(*]1L/0*]6078DEA:40l(V0m3PQ)/53/)n3L,\]a)3/'),_,PQD04K3],0 b/_,3/](A iaVj1 Trang 1/5 DEA DEA: =? #!op%oqFrqsq# TU DEA DEA: I %p% E50F1(7 điểm) ;G V1W)/V)$X*3'Y'UFZ[-SL +\+X)H+!K9H+!K.+4G6'('H ]='.^C_ _=CCCC`$+!KLH1J*-  ^=_-  _=CC`5'( +\+)H+!K9Xa)<+!K*.+ -1G6 b.819'QHGcX)H+!K-SH 1J:-H+!K7'(**0 H70I(J5K1,/K6078:ALM9,_,VN3L1 ; N3L-O()02375PQX/O3)/tu3L ; VN3L)0WX)/8K7O37tv)75L0_)*`,\],_,X/O3)/tu3LA H70I(*]1L/0*]6078:A:LM9,_,VN3L1 ; N3L-O()023L/0)n3LL0_)*`7w33/'),\],_,X/O3)/tu3L-x,/y3 ; N3L)0WX)/8KL/0J`)*a,\],_,X/O3)/tu3L-x,/y3)/8K)/k)d)z3LVO3A iaVj1 :A :A: > A ? = < > < =@> TU :A :A: B A ? = < > =C @ < =@AB $$$$$$$$$${$$$$$$$$$$ T)OdFHG- eHJ=fg eHJfg Trang 2/5     !"#"|!"## G}~ $ #%&!&!"## E50#1^A'Q` AF4V5dV$Y'hiF4='Q  •A •A: = << =><? >>@A BA= ^$`j  <@ =>=CII >>@A BA?=B ^=$@`j < <@ =>=CII >>@A BA?=I ^=$@`j^<$@` @ @> ===== ===== ===== ===== ^=$=`j^=$`j^=$<`j^=$@`j^=$>`j ^$=`j ^$`j^$<`j^$@`j^$>`j^<$=`j ^<$`j ^<$<`j^<$@`j^<$>`j^@$=`j^@$`j ^@$<`j ^@$@`j^@$>`j > V5dV>k ^Gl*Z1'm- Gc0` f+-X- A V5dVAk ^Gl*Z1'm- Gc0` ^A$=` E50!1^B'Q` BF4V5dV$Y'hiF4='Q  •A •A: = =C =CMIN  I? I?MI? < =? =?MI?N<@N>N= @ =CCC =CCCM?IBN=< > ==>?@ ==>?@M=C?@ANA=CN<@N<N= A =@?<C<> =@?<C<>M=@?<C<> B @AI>@@@ @AI>@@@M=A>>IC=@=NA<@>?IA N=@?<C<>N=BI<C?NI<C@CN B>C>N=C?@AN?IBN<BBN>>N= N> E50F1^B'Q` BF4V5dV$Y'hiF4='Q Trang 3/5  •A •A: = > A ? = < > < =@>  B A ? = < > =C @ < =@AB < >      I =@> @ =CC =  < @ n ?? =CC <@CC =<@AB?=C==<=> =A=I=?=@>BI<C <=<<<@<A<B<?@C@@<@> @A@I@?>=>>@>>>B>IAC A=A<A@AAABA?BCBB<B> BABIB?I=II@I>IBII?C ?=?<?@?A?B??=CC > < =  < > < A > = C < C @ I =<> B =C = A < C @ < @ >B @= =@AB?=C Trang 4/5 IB =CC $$$$${$$$$$ Trang 5/5 . !"#$%&'()*+!" ,-.*+!"/01'23*+!"*014% 56*7+8 19  9 +!",-:- H70I(J5K1,/K6078=ALM91 ; N3L-O()023LM9!PQRS"TRT#""U ; VN3L)0WX)/8KR9Y0VN3LLM9,ZPQ3L([23,] 9^ 3L@ S,_,L0_)*`,_,/3/](a)3/')#b/K^3L,_,/UA H70I(*]1L/0*]6078=A:J`)*a,],_,X/O3)c[233Ld]S3W(,ZU/Ke,VN3L )/f3L4_Kg/f3L,ZX/O3)c[233Ld]hA iaVj1 =A.    (Đề thi có 02 trang, gồm 3 bi)   !"#"$!"## $ Thời gian : 150 phút (không kể thời gian giao đề) #%&!&!"## '()*+,. _=CCCC`$+!KLH1J*-  ^=_-  _=CC`5'( ++)H+!K 9 Xa)<+!K*.+ -1G6 b.8 19 'QHGcX)H+!K-SH 1J:-H+!K7'(**0 H70I(J5K1,/K6078:ALM9,_,VN3L1 ;