Simply code

algorithms/geometry/convex_hull.cpp

algorithms/graph/centroid_decomposition.cpp

algorithms/graph/dinic.cpp

algorithms/graph/lca.cpp

algorithms/graph/topological_sort.cpp

algorithms/math/fft.cpp

algorithms/string/kmp.cpp

algorithms/string/z-function.cpp

algorithms/structure/ball_tree.cpp

algorithms/structure/bit.cpp

algorithms/structure/bit2d.cpp

algorithms/structure/lazy_segment_tree.cpp

algorithms/structure/segment_tree.cpp

algorithms/structure/sqrt_decomposition.cpp

algorithms/structure/trie.cpp