#471124 (C++14) No.1036 Make One With GCD 2

• 問題: No.1036 Make One With GCD 2
• ユーザー: ningenMe
• 提出日時: 2020-04-26 02:44:28
• 言語: C++14 (gcc 12.3.0 + boost 1.83.0)
• 結果: TLE
• 実行時間: -
• コード長: 4,943 bytes
• コンパイル時間: 2,282 ms
• コンパイル使用メモリ: 174,476 KB
• 実行使用メモリ: 37,120 KB
• 最終ジャッジ日時: 2024-04-26 06:42:54
• 合計ジャッジ時間: 47,050 ms
• ジャッジサーバーID （参考情報）: judge3 / judge4

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1,922 ms; 37,120 KB
testcase_01	AC	1,366 ms; 31,696 KB
testcase_02	AC	1,148 ms; 31,700 KB
testcase_03	AC	21 ms; 16,908 KB
testcase_04	AC	33 ms; 30,304 KB
testcase_05	AC	2 ms; 5,376 KB
testcase_06	AC	2 ms; 5,376 KB
testcase_07	AC	284 ms; 17,272 KB
testcase_08	AC	229 ms; 16,992 KB
testcase_09	TLE	-
testcase_10	AC	1,817 ms; 31,540 KB
testcase_11	TLE	-
testcase_12	AC	1,846 ms; 31,528 KB
testcase_13	TLE	-
testcase_14	TLE	-
testcase_15	AC	1,980 ms; 31,512 KB
testcase_16	AC	1,979 ms; 31,336 KB
testcase_17	TLE	-
testcase_18	AC	3 ms; 5,376 KB
testcase_19	AC	4 ms; 5,376 KB
testcase_20	AC	6 ms; 5,376 KB
testcase_21	AC	5 ms; 5,376 KB
testcase_22	AC	1,977 ms; 31,484 KB
testcase_23	AC	1,392 ms; 30,336 KB
testcase_24	TLE	-
testcase_25	AC	1,819 ms; 31,104 KB
testcase_26	AC	1,887 ms; 31,356 KB
testcase_27	AC	2 ms; 5,376 KB
testcase_28	AC	2 ms; 5,376 KB
testcase_29	AC	2 ms; 5,376 KB
testcase_30	AC	2 ms; 5,376 KB
testcase_31	AC	2 ms; 5,376 KB
testcase_32	AC	2 ms; 5,376 KB
testcase_33	AC	2 ms; 5,376 KB
testcase_34	AC	2 ms; 5,376 KB
testcase_35	AC	2 ms; 5,376 KB
testcase_36	AC	2 ms; 5,376 KB
testcase_37	AC	2 ms; 5,376 KB
testcase_38	AC	1,140 ms; 31,788 KB
testcase_39	TLE	-
testcase_40	AC	1,378 ms; 30,336 KB
testcase_41	TLE	-
testcase_42	--	-
testcase_43	--	-
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 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;
	}
};

class Gcd{
public:
	inline static long long impl(long long n, long long m) {
		static constexpr long long K = 5;
		long long t,s;
		for(int i = 0; t = n - m, s = n - m * K, i < 80; ++i) {
			if(t<m){
				if(!t) return m;
				n = m, m = t;
			}
			else{
				if(!m) return t;
				n=t;
				if(t >= m * K) n = s;
			}
		}
		return impl(m, n % m);
	}
	inline static long long pre(long long n, long long m) {
		long long t;
		for(int i = 0; t = n - m, i < 4; ++i) {
			(t < m ? n=m,m=t : n=t);
			if(!m) return n;
		}
		return impl(n, m);
	}
	inline static long long gcd(long long n, long long m) {
		return (n>m ? pre(n,m) : pre(m,n));
	}
	inline static constexpr long long pureGcd(long long a, long long b) {
		return (b ? pureGcd(b, a % b):a);
	}
	inline static constexpr long long lcm(long long a, long long b) {
		return (a*b ? (a / gcd(a, b)*b): 0);
	}
	inline static constexpr long long extGcd(long long a, long long b, long long &x, long long &y) {
		if (b == 0) return x = 1, y = 0, a;
		long long d = extGcd(b, a%b, y, x);
		return y -= a / b * x, d;
	}
};

template<class typeNode> struct nodeGCDPointUpdate {
	typeNode unitNode = 0;
	typeNode funcNode(typeNode l,typeNode r){return Gcd::gcd(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 disjn sparse table 
int main() {
	SPEED
	ll N; cin >> N;
	vector<ll> A(N+1,1);
	for(int i = 0; i < N; ++i) cin >> A[i];
	SegmentTree<nodeGCDPointUpdate<ll>> seg(A);
	ll ans=0;
    for(int i = 0; i < N; ++i) {
        if(A[i] == 1){
            ans += (N-i);
        }
        else{
            int ok = N,ng = i,md;
            while(ok-ng>1){
                md = (ok+ng)>>1;
                (seg.get(i,md+1)==1?ok:ng)=md;
            }
            ans += (N-ok);
        }
    }
	cout << ans << endl;
}