From 8d11c6c8213f46f0fa19826917c255edd5d43cb1 Mon Sep 17 00:00:00 2001 From: mzuenni Date: Sun, 28 Jul 2024 22:54:40 +0200 Subject: Test (#4) * update * moved content in subdir * rename file * add test setup * add test setup * add github action * automaticly test all cpp files * timeout after 10s * setulimit and dont zero memory * test build pdf * install latexmk * update * update * ngerman * fonts * removed old code * add first test * added tests * test in sorted order * more tests * simplified test * more tests * fix suffix tree * fixes and improvements * done ust lst directly * fix swap * add links to pdf * fix constants * add primorial * add comment * various improvements * more tests * added missing stuf * more tests * fix tests * more tests * more tests * more tests * fix recursion? * test trie * more tests * only use python temporarily for listings * only use python temporarily for listings * more tests * fix longestCommonSubstring * more tests * more tests * made code more similiar * fix? * more tests * more tests * more tests * add ahoCorasick test + limit 4GB stack size * more tests * fix test * add additional test * more tests * more tests * fix? * better fix * fix virtual tree * more tests * more tests * recursive closest pair * more tests * decrease limit * new tests * more tests * fix name * more tests * add test * new test * more tests * more tests * more tests * more tests * new test and content * new code * new code * larger tests * fix and test * new test * new test * update pdf * remove comments * new test * more tests * more testcases * more tests * increased limit * more tests * more tests * more tests * new tests * more tests * shortened code * new test * add basic tests for bigint * more tests * removed old files * new test * ignore some files * more auto more ccw * fix test * more tests * fix * new tests * more tests * more tests * stronger test * actually verify delaunay... * more tests * fix header * more tests * run tests parallel? * test parralel? * add --missing * separate workflows * test * is the pdf checked? * separate workflows * fix workflow * more workflows --------- Co-authored-by: Yidi --- content/datastructures/segmentTree.cpp | 42 ++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 content/datastructures/segmentTree.cpp (limited to 'content/datastructures/segmentTree.cpp') diff --git a/content/datastructures/segmentTree.cpp b/content/datastructures/segmentTree.cpp new file mode 100644 index 0000000..6b69d0b --- /dev/null +++ b/content/datastructures/segmentTree.cpp @@ -0,0 +1,42 @@ +struct SegTree { + using T = ll; + int n; + vector tree; + static constexpr T E = 0; // Neutral element for combine + + SegTree(vector& a) : n(sz(a)), tree(2 * n) { + //SegTree(int size, T val = E) : n(size), tree(2 * n, val) { + copy(all(a), tree.begin() + n); + for (int i = n - 1; i > 0; i--) { // remove for range update + tree[i] = comb(tree[2 * i], tree[2 * i + 1]); + }} + + T comb(T a, T b) {return a + b;} // modify this + neutral + + void update(int i, T val) { + tree[i += n] = val; // apply update code + while (i /= 2) tree[i] = comb(tree[2 * i], tree[2 * i + 1]); + } + + T query(int l, int r) { + T resL = E, resR = E; + for (l += n, r += n; l < r; l /= 2, r /= 2) { + if (l&1) resL = comb(resL, tree[l++]); + if (r&1) resR = comb(tree[--r], resR); + } + return comb(resL, resR); + } + + // OR: range update + point query, needs commutative comb + void modify(int l, int r, T val) { + for (l += n, r += n; l < r; l /= 2, r /= 2) { + if (l&1) tree[l] = comb(tree[l], val), l++; + if (r&1) --r, tree[r] = comb(tree[r], val); + }} + + T query(int i) { + T res = E; + for (i += n; i > 0; i /= 2) res = comb(res, tree[i]); + return res; + } +}; -- cgit v1.2.3