Fix notebook

algorithms/graph/travelling_salesman.cpp

algorithms/structure/disjoint_set.cpp

algorithms/structure/trie.cpp

caderno.pdf

contests/Cadernaveis/BALE11.cpp

contests/Cadernaveis/CAVALOS.cpp

contests/Cadernaveis/CF342E.cpp

contests/Cadernaveis/DESCULPA.cpp

contests/Cadernaveis/EASUDOKU.cpp

contests/Cadernaveis/ENGARRAF.cpp

contests/Cadernaveis/GINCAN11.cpp

contests/Cadernaveis/JANELA13.cpp

contests/Cadernaveis/KOCH.cpp

contests/Cadernaveis/KRAKOVIA.cpp

contests/Cadernaveis/LA3635.cpp

contests/Cadernaveis/LA4509.cpp

contests/Cadernaveis/LA5138.cpp

contests/Cadernaveis/LA5220.cpp

contests/Cadernaveis/MANUT.cpp

contests/Cadernaveis/MCAIRO.cpp