結果
問題 | No.1036 Make One With GCD 2 |
ユーザー | ningenMe |
提出日時 | 2020-03-14 07:13:21 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 6,806 bytes |
コンパイル時間 | 2,017 ms |
コンパイル使用メモリ | 177,192 KB |
実行使用メモリ | 53,652 KB |
最終ジャッジ日時 | 2024-11-07 01:57:56 |
合計ジャッジ時間 | 10,191 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
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testcase_00 | TLE | - |
testcase_01 | -- | - |
testcase_02 | -- | - |
testcase_03 | -- | - |
testcase_04 | -- | - |
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testcase_06 | -- | - |
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testcase_40 | -- | - |
testcase_41 | -- | - |
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testcase_44 | -- | - |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; #define SPEED cin.tie(0);ios::sync_with_stdio(false); template<class Operator> class LazySegmentTree { Operator Op; using typeNode = decltype(Op.unitNode); using typeLazy = decltype(Op.unitLazy); size_t num; size_t length; size_t height; vector<typeNode> node; vector<typeLazy> lazy; vector<pair<size_t,size_t>> range; public: //unitで初期化 LazySegmentTree(const size_t num) : num(num) { for (length = 1,height = 0; length < num; length *= 2, height++); node.resize(2 * length, Op.unitNode); lazy.resize(2 * length, Op.unitLazy); for (int i = 0; i < num; ++i) node[i + length] = Op.unitNode; for (int i = length - 1; i >= 0; --i) node[i] = Op.funcNode(node[(i<<1)+0],node[(i<<1)+1]); range.resize(2 * length); for (int i = 0; i < length; ++i) range[i+length] = make_pair(i,i+1); for (int i = length - 1; i >= 0; --i) range[i] = make_pair(range[(i<<1)+0].first,range[(i<<1)+1].second); } // //同じinitで初期化 LazySegmentTree(const size_t num, const typeNode init) : num(num) { for (length = 1,height = 0; length < num; length *= 2, height++); node.resize(2 * length, Op.unitNode); lazy.resize(2 * length, Op.unitLazy); for (int i = 0; i < num; ++i) node[i + length] = init; for (int i = length - 1; i >= 0; --i) node[i] = Op.funcNode(node[(i<<1)+0],node[(i<<1)+1]); range.resize(2 * length); for (int i = 0; i < length; ++i) range[i+length] = make_pair(i,i+1); for (int i = length - 1; i >= 0; --i) range[i] = make_pair(range[(i<<1)+0].first,range[(i<<1)+1].second); } //vectorで初期化 LazySegmentTree(const vector<typeNode>& vec) : num(vec.size()) { for (length = 1,height = 0; length < vec.size(); length *= 2, height++); node.resize(2 * length, Op.unitNode); lazy.resize(2 * length, Op.unitLazy); for (int i = 0; i < vec.size(); ++i) node[i + length] = vec[i]; for (int i = length - 1; i >= 0; --i) node[i] = Op.funcNode(node[(i<<1)+0],node[(i<<1)+1]); range.resize(2 * length); for (int i = 0; i < length; ++i) range[i+length] = make_pair(i,i+1); for (int i = length - 1; i >= 0; --i) range[i] = make_pair(range[(i<<1)+0].first,range[(i<<1)+1].second); } void propagate(int k) { if(lazy[k] == Op.unitLazy) return; node[k] = Op.funcMerge(node[k],lazy[k],range[k].second-range[k].first); if(k < length) lazy[2*k+0] = Op.funcLazy(lazy[2*k+0],lazy[k]); if(k < length) lazy[2*k+1] = Op.funcLazy(lazy[2*k+1],lazy[k]); lazy[k] = Op.unitLazy; } //update [a,b) void update(int a, int b, typeLazy x) { int l = a + length, r = b + length - 1; for (int i = height; 0 < i; --i) propagate(l >> i), propagate(r >> i); for(r++; l < r; l >>=1, r >>=1) { if(l&1) lazy[l] = Op.funcLazy(lazy[l],x), propagate(l),l++; if(r&1) --r,lazy[r] = Op.funcLazy(lazy[r],x), propagate(r); } l = a + length, r = b + length - 1; while ((l>>=1),(r>>=1),l) { if(lazy[l] == Op.unitLazy) node[l] = Op.funcNode(Op.funcMerge(node[(l<<1)+0],lazy[(l<<1)+0],range[(l<<1)+0].second-range[(l<<1)+0].first),Op.funcMerge(node[(l<<1)+1],lazy[(l<<1)+1],range[(l<<1)+1].second-range[(l<<1)+1].first)); if(lazy[r] == Op.unitLazy) node[r] = Op.funcNode(Op.funcMerge(node[(r<<1)+0],lazy[(r<<1)+0],range[(l<<1)+0].second-range[(l<<1)+0].first),Op.funcMerge(node[(r<<1)+1],lazy[(r<<1)+1],range[(r<<1)+1].second-range[(r<<1)+1].first)); } } //get [a,b) typeNode get(int a, int b) { int l = a + length, r = b + length - 1; for (int i = height; 0 < i; --i) propagate(l >> i), propagate(r >> i); typeNode vl = Op.unitNode, vr = Op.unitNode; for(r++; l < r; l >>=1, r >>=1) { if(l&1) vl = Op.funcNode(vl,Op.funcMerge(node[l],lazy[l],range[l].second-range[l].first)),l++; if(r&1) r--,vr = Op.funcNode(Op.funcMerge(node[r],lazy[r],range[r].second-range[r].first),vr); } return Op.funcNode(vl,vr); } //return [0,length] int PrefixBinarySearch(typeNode var) { int l = length, r = 2*length - 1; for (int i = height; 0 < i; --i) propagate(l >> i), propagate(r >> i); if(!Op.funcCheck(node[1],var)) return num; typeNode ret = Op.unitNode; size_t idx = 2; for(; idx < 2*length; idx<<=1){ if(!Op.funcCheck(Op.funcNode(ret,Op.funcMerge(node[idx],lazy[idx],range[idx].second-range[idx].first)),var)) { ret = Op.funcNode(ret,Op.funcMerge(node[idx],lazy[idx],range[idx].second-range[idx].first)); idx++; } } return min((idx>>1) - length,num); } //range[l,r) return [l,r] int BinarySearch(size_t l, size_t r, typeNode var) { if (l < 0 || length <= l || r < 0 || length < r) return -1; for (int i = height; 0 < i; --i) propagate((l+length) >> i), propagate((r+length-1) >> i); typeNode ret = Op.unitNode; size_t off = l; for(size_t idx = l+length; idx < 2*length && off < r; ){ if(range[idx].second<=r && !Op.funcCheck(Op.funcNode(ret,Op.funcMerge(node[idx],lazy[idx],range[idx].second-range[idx].first)),var)) { ret = Op.funcNode(ret,Op.funcMerge(node[idx],lazy[idx],range[idx].second-range[idx].first)); off = range[idx++].second; if(!(idx&1)) idx >>= 1; } else{ idx <<=1; } } return off; } void print(){ // cout << "node" << endl; // for(int i = 1,j = 1; i < 2*length; ++i) { // cout << node[i] << " "; // if(i==((1<<j)-1) && ++j) cout << endl; // } // cout << "lazy" << endl; // for(int i = 1,j = 1; i < 2*length; ++i) { // cout << lazy[i] << " "; // if(i==((1<<j)-1) && ++j) cout << endl; // } cout << "vector" << endl; cout << "{ " << get(0,1); for(int i = 1; i < length; ++i) cout << ", " << get(i,i+1); cout << " }" << endl; } }; //node:GCD lazy:更新 template<class typeNode, class typeLazy> struct nodeGCDLazyUpdate { typeNode unitNode = 0; typeLazy unitLazy = -1; typeNode funcNode(typeNode l,typeNode r){return ((r == 0) ? l : funcNode(r, l % r));} typeLazy funcLazy(typeLazy l,typeLazy r){return r;} typeNode funcMerge(typeNode l,typeLazy r,int len){return r!=-1?r:l;} bool funcCheck(typeNode nodeVal,typeNode var){return var == nodeVal;} // LazySegmentTree<nodeGCDLazyUpdate<ll,ll>> Seg(A); //verify https://atcoder.jp/contests/abc125/tasks/abc125_c }; // solution by binary search in prefix range on lazy segment tree int main() { SPEED ll N; cin >> N; assert(1 <= N && N <= 500000); vector<ll> A(N); for(int i = 0; i < N; ++i) cin >> A[i]; for(int i = 0; i < N; ++i) assert(1 <= A[i] && A[i] <= 1000000000000000000LL); LazySegmentTree<nodeGCDLazyUpdate<ll,ll>> seg(A); ll ans = 0; for(int i = 0; i < N; ++i) { ans += N - seg.PrefixBinarySearch(1); seg.update(i,i+1,0); } cout << ans << endl; }