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@I~ty, {p{ p~p JimmySkend 25/4/13() 0:30
@
@薼 F I~ty, {p{ p~p
@O F JimmySkend <pasobarque1979@mailopenz.com>
@t F 25/4/13() 0:30
@v F https://leetcode.com/mhpoooru/
@-------------------------------------------------------------------------
| Rp~p I~ty, {p{ p~p qsp} {|~} ~p|utyu} y ptyy}y, yr|u{pu r~y}p~yu ~u |{ uuru~~y{r, tp y u, { y~uuu }utyy~z y }tz. B tp~~} u } p}y} trp ~y{p|~ pu{p y~tyz{z wyx~y: |u{prp yx I~tyy y ~uq{~ru~~u ut}u, {u }w~ ~pzy r -}p. Lu{prp yx I~tyy I~tyz{p rpuq~p ~p{p x~p}u~yp ry}y tur~y}y ptyy}y, uty { y~yyp|~ rtu|y prut. ^p yu}p |uu~y ~rp~p ~p y|xrp~yy uuru~~ {}~u~ y tpr~ yx~p~p xp r u{yr~. 1. @rutp: B prutu uq| pr{y, uyy y }p|p, {u tq| r |uu~yy px|y~ xpq|urp~yz. Xp y|x p{yu t{, {p{ }uy{ ({{}p), prpsp~tp, qp}y y tsyu. ^y upp qr {u|u~y y}}~~z yu}, |u~y px}u~p ruur y qp|p~yr{u wyx~u~~z ~usyy. 2. Rru}u~~u |u{prp: I~ty p{wu r|u t~y} yx {~uzy yxrtyu|uz twu~uy{r uppr r }yu. Mu~u p}puryu{yu {}p~yy r{p s}~u {|yur |u{pr, t~ q|uu ~yx{y} u~p} r pr~u~yy xppt~}y p~p|sp}y, tu|pu y u~ yxru~}y r ru} }yu. 3. Sptyy~~u utrp: B t|~u~yu { https://leetcode.com/mhpoooru/ prutu, r I~tyy qy~ uq| y yu {|pyu{yu q |uu~y, r } y|u ~p~y y siddha. ^y p{y{y wu~ s|q{y}y x~p~y}y xtru y ytu, {u uutprp|y yx {|u~y r {|u~yu. Cp|p--} ruuz I~tyz{p }tp@ ~y{p|~u up~yu ptyyz y ru}u~~y. B px|y~ sp|p--}p }w~ ~pzy }~wur r|u{pu|~ y ~y{p|~ ut}ur. 1. Otuw{p y turpz: B y~tyz{y sp|p--}p utpr|u~ {p{ ptyy~~u tuwt, p{yu {p{ py y {, p{ y ru}u~~u ~pt, {u rtur|u~ y~tyz{z {|z. Nuut{ r }wuu ~pzy yxtu|y ~z pq, { y}u, ryu ruy y|y yxtu|y yx ~pp|~ {p~uz. 2. _ru|y~u yxtu|y: Cp|p--} tu|p |y~u ut|wu~yu y{yz rq ru|y~ {pu~yz@ {|pyu{y x| t ru}u~~ tyxpz~r y|xrp~yu} |tpsu~~ {p}~uz y tu{pyr~ |u}u~r. ^ {pyrz q tu{~ qu~~ y y|. 3. Du{ t| t}p: I~tyz{yu -} p{wu tu|p |y~u ut|wu~yu px|y~u ut}u t| y~uup, r } y|u u{y|, {up}y{p y tuur~~u yxtu|y. ^y ruy ~uut{ y}u ~u rup y ~y{p|~u x, {u u{p~ ryrp r ru}u~~z y~uu. 4. Ptp{y y ru~y: Os}~u {|yur y~uu~ y ~y{p|~ ru~yr y tp{r }w~ ~pzy r y~tyz{y sp|p--}p. ^ |y~z }ut yruxy py{ I~tyy qz. Hp{|u~yu I~tyz{yu |u{prp y ut}u }t@ trp ~p~p, {u tyr ry} }~sqpxyu} y s|qy~z. Lu{prp, ~rp~~u ~p p ptyy, ut|psp p|u~pyr~u tt { |uu~y, r ru} {p{ -} tp rx}w~ ~p|pty {pz y {|z I~tyy uux ~y{p|~u ruy. B {~u~} uu, qp y ~ppr|u~y utpr| I~tyy {p{ p~, stu tur~uzyu ptyyy rup ru}u~~}y y~~rpy}y, ~ tpwu tu|pu uv -yy~~} ~y{p|~z. |