baekjoon 20260105
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songyc macbook
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3eeaae2024
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code_study/Baekjoon/java/_1766.java
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40
code_study/Baekjoon/java/_1766.java
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import java.util.*;
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public class _1766 {
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public static void main(String[] args) {
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Scanner sc = new Scanner(System.in);
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int N = sc.nextInt(), M = sc.nextInt();
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int[] indegree = new int[N+1];
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@SuppressWarnings("unchecked")
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ArrayList<Integer>[] graph = new ArrayList[N+1];
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for(int i=0; i<=N; i++) graph[i] = new ArrayList<>();
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for(int i=0; i<M; i++) {
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int a = sc.nextInt(), b = sc.nextInt();
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indegree[b]++;
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graph[a].add(b);
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}
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sc.close();
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PriorityQueue<Integer> pq = new PriorityQueue<>();
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for(int i=1; i<=N; i++) if(indegree[i] == 0) pq.add(i);
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ArrayList<Integer> ans = new ArrayList<>();
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while(!pq.isEmpty()) {
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int now = pq.poll();
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ans.add(now);
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for (int next : graph[now]) {
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indegree[next]--;
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if(indegree[next] == 0) pq.add(next);
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}
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}
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for (int n : ans) {
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System.out.printf("%d ",n);
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}
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}
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}
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64
code_study/Baekjoon/python/24900.py
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code_study/Baekjoon/python/24900.py
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print(''' :8DDDDDDDDDDDDDD$.
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DDDNNN8~~~~~~~~~~=~7DNNDNDDDNNI
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?NNDD=~=~~~~~~~~~~~~~~~~~=~~==~=INNDNN7
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+NDDI~~~~~~~~~~~~~~~~~~~~~~~=~~========~ODND+
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:NND~~~~~~~~~~~~~~~~~~~~~~~~~~~=~~============7NDN
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$DD$~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=~~==============~DNN
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$DD=~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=~~=================NND
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ND7~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=~~===================DD7
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~DD=~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=======================8DN.
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8DO~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=========================DD
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8N~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=~~=======================DN
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NN::::::::~~~~~~~~~~~=~~~~~~~~~~~~~~~~~~~=~~========================DDO
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$D$:::::::::::::::~~~~DD~~~~~~~~~~~~~~~~~~=~~=========================DN.
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D8:::::::::::::::::::DN=::~~~~~~~~~~~~~~~~=~~======================~~:~DN
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DN:::::::::::::::::::ONO::::::::::::::::::::~~~~~~~~~~~~:::::::::::::::::DN
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DN::::::::::::::::::::NN.:::::::::::::::::::::::::::DN::::::::::::::::::::$DO
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DD:::::::::::::::::::DNI:::::::::::::::::::::::::::::D=::::::::::::::::::::NN
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NN~~~~:::::$N?:::::::.NN::::::::::::::::::::::::::::::ND.:::::::::::::::::::+N8
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N7~~~~~~~~OD7::::::::~DD::::::::::::::::::::::::::::::~D$::::::::::::::::::::DN
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NN~~~~~~~~IDZ~~~~~::::DN~:::::::::::::::::::::::::::::::DN::::::::::::::::::::=N~
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DD~~~~~~~~NN~~~~~~~~~=NN::::::::::::::::::::::::::::::::DN:::::::::::::::~~====NN
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8D~~~~~~~~ND~~~~~~~~~~~ND~~~~~~~~:::::::::::::::::::::::::N7:::~~===============NN
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DD~~~~~~~ON+~~~~~~~~~~~ND~~~~~~~~~~~~~~~~~~~=+NZ==========NN====================~ND
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:DD7 DNDD. N8~~~~~~~NN~~~~~~~~~~DDND~~~~~~~~~~~~~~~~~~~~ND~~=========DD=====================ND
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N~:DDNNN .8NDN~~~~~~~$D=~~~~~~~~+ND.DD~~~~~~~~~~~~~~~~~~~=DD~~=========~D+====================DN
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:D . ..~ND~~~~~~~NN~~~~~~~+NN$..ND~~~~~~~~~~~~~~~~~~~7N=~~=========~ND=======~============ON
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NN ...:N?~~~~~~~N=~~~~~NNNI.. .7D+~~~~~~~~~~~~~~~~~=8NN~~==========NN=======N============$N
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N ODN ....DN~~~~~~~DD=8NNND$.. .DD~~~=~~~~~~~~~~~~~=NNDD=~=========8D~======NN===========~N$
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N? =NN ND .....NND~~~~~~~DDNN:... .ND=~DNN~~~~~~~~~~~~=DN.DN~=========?N+======NN============ND
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$D? DN DZ ....ND8NN~~~~~~$D .DD~NNDD~~~~~~~~~~~~D8..DN=========~DN======NN============DN
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DN ~N~ NN ..:~NN..NZ~~~~~~DN NNN8.ND~~~~NDN?~~~DZ...7DD=======~NN======NN============DN
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ND DD :DN. ..ND$ .N?~~~~~=NNN . ..DDD$~N8OND8=N+ ..DDDZ~====NN======+D+===========ND
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NO DD ZDN 8NO~~~~~~NNN..DDDNN7 ...NND...:DDD: .:.NDND=~DD======~DO===========DN
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DNDDN:. DN~~~~~~=NNNN.ODNNNNDDNNO ... . ...DNNNN=======ND===========DD
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INDN7 DD. .DD~~~~~=IDND:.:~.....?DNDNN. ...... ....$D=======ND===========ND
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NN ND. 8N=~~~~$ND::.:=~:.~=......=ND~ .NNNNNNNNNNNNNNN.~N+======NN===========DN
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$DD DN: DD~~~~7NO...~==.:~~:..... NNNND? ..::..7NZ.:N?======8D~==========ZN
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DN? ~D: DND.?D~~~~~DD....~:.~=~....... ....~=:.:~..ND======~N$==========~DO
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ND ..DD. .DNDN=~~~~DI.......:......... ....=~..~~~..DN======~DD===========NN
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DDD :.:DD. . DDI~~~~~ND................ .DNNNNNNNNNN7 ....=~:.:~~...NN=======ND===========?D~
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8D. ...OD.. DD~~~~~~+ND ............ NN:~::::~~~8N ........~~...:ND=======DN============NN
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DDI:...ND .D7~~~~~~~7NN .......... ID8::::::::8D .............:DN=======ON============NN
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~NNND.N=. .NN~~~~~~~~~NDN8 ~::::::~N8 .............DN========D=============NI
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DDNNN.ND~~~~~~~~DD =DND ............DN========N+~===========NN
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~:N=~~~~~~~~DD .DDDD ........ NN========DD============8D
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8N~~~~~~~~~ND . .7NDDD? . .8DDN========NN=============D:
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DD~~~~~~~~~DND: IDNNND$. .+DNNNNDNIDN========DD=============DD
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ND~~~~~~~~ZN 7DD .. .:DDNDDNNDNNNNDDNDND8$?===+$8DDNNNDDDDDN8I~DN====8N========NN=============NN
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DD~~~~~~~~8N DD. .NN~~~~.~~=DNDNO.:7ODDDDNNDD8DDDND=~~~ =~~~ON====8N========DN=============DN
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ND~~~~~~~~DN ZDD DN~~~ ~~~~~=.7DDD+.......8NNN==~~~~~ ~~~~~ONN$==DN========8N=============ON
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ND~8N~=~~~ZN DDODN=~.~~~~~=.~~~~INDNNNNDNN~~~~~~~~:~~~~~~~DN~ND=DN========DD=========~ND=8N
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IN=NDDI~~~~D8 DNN::~~~~~.~~~~~=.~~ND~~ND~~~~~~~~.~~~~~~~~NN NDNN====ND==ND~D?======DNN=ND
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DNNI8ND=~~DN: ZN=~~~~~ ~~~~~.~~~~DD~=DD~~~~~~~ ~~~~~~~=.ND. . ND===DNDD=NDDNN=====8NZDDDN
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NND IDNDNNN+ D+~~~:~~~~~~ ~~~~~DDNNN+~~~~~~~~~~~~~~:=?N7 .ND=~ND DNNN~ID====ND7 NNN
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ID ND~~ ~~~~~:.~~~7DDN7IDNN==~~ ~~~~~~~~ ~~DN .:N?DDDDD NND 8N~=DDD ZNN
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NN~:~~~~~ =7DDDD+8N :N8DDZ.~~~~~~~~.~~~DD. NDD+ . DN= OND+
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DND~~~=8DNDDZ=~~ ND NN~INND~~~~~.~~~~ND . . ..IDD
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DDNNNDNNN+~~~~~~.7N. ND~~~NDDI~ ~~~~=NNN .DDI
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DN=~~~~.=~~~~~~ ~~DN +N+~~~~+DNDD~~~NNNND. ..ND
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DDI~~ ~~~~~~~ ~~~ND.. ..ND~~~~:~~~DNDNNNN+ ..7O8ND+
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.DND=~~~~=::~~=NN. . . 8D~~.~~~~~~=DN$ODNDNDNNNDNNNNND8+~..
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8DNNI=.~~~~=NDDNNNNDDNDNN.~~~~~IDDNDND7:.
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?DNNDD?~DD ~NN~~=NDD$
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:DDD. NNNN= ''')
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