結果
問題 | No.1014 competitive fighting |
ユーザー | ningenMe |
提出日時 | 2020-04-25 16:02:45 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,819 bytes |
コンパイル時間 | 2,503 ms |
コンパイル使用メモリ | 175,648 KB |
実行使用メモリ | 10,240 KB |
最終ジャッジ日時 | 2024-11-07 06:10:26 |
合計ジャッジ時間 | 6,530 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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テストケース
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testcase_00 | WA | - |
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testcase_03 | AC | 2 ms
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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 SegmentTree { Operator Op; using typeNode = decltype(Op.unitNode); size_t length; size_t num; vector<typeNode> node; vector<pair<size_t,size_t>> range; public: //unitで初期化 SegmentTree(const size_t num): num(num) { for (length = 1; length < num; length *= 2); node.resize(2 * length, Op.unitNode); 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 SegmentTree(const vector<typeNode> & vec) : num(vec.size()) { for (length = 1; length < vec.size(); length *= 2); node.resize(2 * length, Op.unitNode); 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); } //同じinitで初期化 SegmentTree(const size_t num, const typeNode init) : num(num) { for (length = 1; length < num; length *= 2); node.resize(2 * length, init); 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); } //[idx,idx+1) void update(size_t idx, const typeNode var) { if(idx < 0 || length <= idx) return; idx += length; node[idx] = Op.funcMerge(node[idx],var); while(idx >>= 1) node[idx] = Op.funcNode(node[(idx<<1)+0],node[(idx<<1)+1]); } //[l,r) typeNode get(int l, int r) { if (l < 0 || length <= l || r < 0 || length < r) return Op.unitNode; typeNode vl = Op.unitNode, vr = Op.unitNode; for(l += length, r += length; l < r; l >>=1, r >>=1) { if(l&1) vl = Op.funcNode(vl,node[l++]); if(r&1) vr = Op.funcNode(node[--r],vr); } return Op.funcNode(vl,vr); } //return [0,length] int PrefixBinarySearch(typeNode var) { 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,node[idx]),var)) { ret = Op.funcNode(ret,node[idx]); 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; 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,node[idx]),var)) { ret = Op.funcNode(ret,node[idx]); off = range[idx++].second; if(!(idx&1)) idx >>= 1; } else{ idx <<=1; } } return off; } }; template<class typeNode> struct nodeGCDPointUpdate { typeNode unitNode = 0; typeNode funcNode(typeNode l,typeNode r){return ((r == 0) ? l : funcNode(r, l % r));} typeNode funcMerge(typeNode l,typeNode r){return r;} bool funcCheck(typeNode nodeVal,typeNode var){return var == nodeVal;} }; // solution by binary search in arbitary range on 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); SegmentTree<nodeGCDPointUpdate<ll>> seg(A); ll ans = 0; for(int i = 0; i < N; ++i) { ans += N - seg.BinarySearch(i,N,1); } assert(0 <= ans && ans <= (N*(N+1))/2); cout << ans << endl; }