Small updates and fixes

algorithms/graph/dinic.cpp

algorithms/graph/ford_fulkerson.cpp

algorithms/graph/hopcroft_karp.cpp

algorithms/graph/kosaraju.cpp

algorithms/graph/min_cost_max_flow.cpp

algorithms/graph/prim.cpp

algorithms/graph/steiner_tree.cpp

algorithms/graph/topological_sort.cpp

algorithms/graph/travelling_salesman.cpp

algorithms/math/pollard_rho.cpp

algorithms/string/aho_corasick.cpp

algorithms/string/kmp.cpp

algorithms/structure/hash_function.cpp

algorithms/structure/sparse_table.cpp

caderno.pdf

notebook/gen_latex.py

notebook/header.tex