結果

問題 No.3078 Difference Sum Query
コンテスト
ユーザー MMRZ
提出日時 2025-03-28 22:40:56
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
TLE  
実行時間 -
コード長 7,213 bytes
コンパイル時間 4,487 ms
コンパイル使用メモリ 314,408 KB
実行使用メモリ 7,324 KB
最終ジャッジ日時 2025-03-28 22:41:11
合計ジャッジ時間 8,799 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 6 TLE * 1 -- * 19
権限があれば一括ダウンロードができます

ソースコード

diff # 

# include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
const double pi = acos(-1);
template<class T>constexpr T inf() { return ::std::numeric_limits<T>::max(); }
template<class T>constexpr T hinf() { return inf<T>() / 2; }
template <typename T_char>T_char TL(T_char cX) { return tolower(cX); }
template <typename T_char>T_char TU(T_char cX) { return toupper(cX); }
template<class T> bool chmin(T& a,T b) { if(a > b){a = b; return true;} return false; }
template<class T> bool chmax(T& a,T b) { if(a < b){a = b; return true;} return false; }
int popcnt(unsigned long long n) { int cnt = 0; for (int i = 0; i < 64; i++)if ((n >> i) & 1)cnt++; return cnt; }
int d_sum(ll n) { int ret = 0; while (n > 0) { ret += n % 10; n /= 10; }return ret; }
int d_cnt(ll n) { int ret = 0; while (n > 0) { ret++; n /= 10; }return ret; }
ll gcd(ll a, ll b) { if (b == 0)return a; return gcd(b, a%b); };
ll lcm(ll a, ll b) { ll g = gcd(a, b); return a / g*b; };
ll MOD(ll x, ll m){return (x%m+m)%m; }
ll FLOOR(ll x, ll m) {ll r = (x%m+m)%m; return (x-r)/m; }
template<class T> using dijk = priority_queue<T, vector<T>, greater<T>>;
# define all(qpqpq)           (qpqpq).begin(),(qpqpq).end()
# define UNIQUE(wpwpw)        (wpwpw).erase(unique(all((wpwpw))),(wpwpw).end())
# define LOWER(epepe)         transform(all((epepe)),(epepe).begin(),TL<char>)
# define UPPER(rprpr)         transform(all((rprpr)),(rprpr).begin(),TU<char>)
# define rep(i,upupu)         for(ll i = 0, i##_len = (upupu);(i) < (i##_len);(i)++)
# define reps(i,opopo)        for(ll i = 1, i##_len = (opopo);(i) <= (i##_len);(i)++)
# define len(x)                ((ll)(x).size())
# define bit(n)               (1LL << (n))
# define pb push_back
# define eb emplace_back
# define exists(c, e)         ((c).find(e) != (c).end())

struct INIT{
	INIT(){
		std::ios::sync_with_stdio(false);
		std::cin.tie(0);
		cout << fixed << setprecision(20);
	}
}INIT;

namespace mmrz {
	void solve();
}

int main(){
	mmrz::solve();
}
#define debug(...) (static_cast<void>(0))

using namespace mmrz;


template<typename T>struct segment_tree {
	using F = function<T(T, T)>;

	int offset;
	int n;
	vector<T> node;
	F combine;
	T identify;

	segment_tree(int _n, F _combine, T _identify) : segment_tree(vector<T>(_n, _identify), _combine, _identify) {}

	segment_tree(const vector<T> &v, F _combine, T _identify) : n((int)v.size()), combine(_combine), identify(_identify) {
		offset = 1;
		while(offset < n)offset <<= 1;

		node.resize(2*offset, identify);

		for(int i = 0;i < n;i++)node[i + offset] = v[i];
		for(int i = offset - 1;i >= 1;i--)node[i] = combine(node[2 * i + 0], node[2 * i + 1]);
	}

	T operator[](int x) {return node[x + offset]; }

	void set(int x, T val){
		assert(0 <= x && x < n);
		x += offset;

		node[x] = val;
		while(x >>= 1){
			node[x] = combine(node[2 * x + 0], node[2 * x + 1]);
		}
	}

	T fold(int l, int r){
		assert(0 <= l && l <= r && r <= n);
		if(l == r)return identify;

		T L = identify, R = identify;
		for(l += offset, r += offset; l < r;l >>= 1, r >>= 1){
			if(l&1)L = combine(L, node[l++]);
			if(r&1)R = combine(node[--r], R);
		}
		return combine(L, R);
	}

	T all_fold() { return node[1]; };

	int max_right(const function<bool(T)> f, int l = 0){
		assert(0 <= l && l <= n);
		assert(f(identify));

		if(l == n)return n;
		
		l += offset;
		T sum = identify;
		do{
			while(l%2 == 0)l >>= 1;
			if(not f(combine(sum, node[l]))){
				while(l < offset){
					l <<= 1;
					if(f(combine(sum, node[l]))){
						sum = combine(sum, node[l]);
						l++;
					}
				}
				return l - offset;
			}
			sum = combine(sum, node[l]);
			l++;
		}while((l&-l) != l);
		return n;
	}

	int min_left(const function<bool(T)> f, int r = -1){
		if(r == 0)return 0;
		if(r == -1)r = n;
		r += offset;
		T sum = identify;
		do{
			--r;
			while(r > 1 && (r % 2))r >>= 1;
			if(not f(combine(node[r], sum))){
				while(r < offset){
					r = r*2 + 1;
					if(f(combine(node[r], sum))){
						sum = combine(node[r], sum);
						--r;
					}
				}
				return r+1 - offset;
			}
			sum = combine(node[r], sum);
		}while((r&-r) != r);
		return 0;
	}
};
class Mo {
	vector<pair<int, int>> lr;
public:
	Mo() = default;
	Mo(const vector<pair<int, int>> &_lr) : lr(_lr) {}

	template<typename AL, typename AR, typename EL, typename ER, typename F>
	void calc(const AL &add_left, const AR &add_right, const EL &erase_left, const ER& erase_right, const F &f, int _n = -1, int _B = -1){
		int n = (_n == -1 ? ranges::max(lr, {}, &pair<int, int>::second).second : _n);
		int q = (int)lr.size();
		int B = (_B == -1 ? max(1, n/int(sqrt(q))) : _B);

		vector<int> index(q);
		iota(index.begin(), index.end(), 0);
		sort(index.begin(), index.end(), [&](int i, int j){
			const auto &[l_i, r_i] = lr[i];
			const auto &[l_j, r_j] = lr[j];
			const int B_i = l_i / B, B_j = l_j / B;
			if(B_i != B_j){
				return B_i < B_j;
			}
			if(B_i & 1){
				return r_j < r_i;
			}else{
				return r_i < r_j;
			}
		});

		int l = 0, r = 0;
		for(int idx : index){
			const auto &[L, R] = lr[idx];

			while(L < l)add_left(--l);
			while(r < R)add_right(r++);
			
			while(l < L)erase_left(l++);
			while(R < r)erase_right(--r);

			f(idx);
		}
	}

	template<typename A, typename E, typename F>
	void calc(const A &add, const E &erase, const F &f){
		calc(add, add, erase, erase, f);
	}
};

void SOLVE(){
	int n, q;
	cin >> n >> q;
	vector<ll> a(n);
	for(auto &e : a)cin >> e;
	vector<pair<int, int>> lr(q);
	vector<ll> x(q);
	vector<ll> x_comp;
	rep(i, q){
		cin >> lr[i].first >> lr[i].second >> x[i];
		lr[i].first--;
		x_comp.emplace_back(x[i]);
	}
	x_comp.emplace_back(0);
	x_comp.emplace_back(-1);
	sort(all(x_comp));
	UNIQUE(x_comp);
	unordered_map<ll, int> compress;
	rep(i, len(x_comp))compress[x_comp[i]] = i;

	Mo mo(lr);

	segment_tree<ll> seg_leq(len(x_comp)+1, [](ll l, ll r){return l+r;}, 0);
	segment_tree<ll> seg_leq_cnt(len(x_comp)+1, [](ll l, ll r){return l+r;}, 0);
	segment_tree<ll> seg_les(len(x_comp)+1, [](ll l, ll r){return l+r;}, 0);
	segment_tree<ll> seg_les_cnt(len(x_comp)+1, [](ll l, ll r){return l+r;}, 0);

	auto add = [&](int idx) -> void {
		auto it = upper_bound(all(x_comp), a[idx])-x_comp.begin();
		it--;
		seg_leq.set(it, seg_leq[it]+a[idx]);
		seg_les.set(0, seg_les[0]+a[idx]);
		seg_les.set(it, seg_les[it]-a[idx]);
		seg_leq_cnt.set(it, seg_leq_cnt[it]+1);
		seg_les_cnt.set(0, seg_les_cnt[0]+1);
		seg_les_cnt.set(it, seg_les_cnt[it]-1);
	};

	auto erase = [&](int idx) -> void {
		auto it = upper_bound(all(x_comp), a[idx])-x_comp.begin();
		it--;
		seg_leq.set(it, seg_leq[it]-a[idx]);
		seg_les.set(0, seg_les[0]-a[idx]);
		seg_les.set(it, seg_les[it]+a[idx]);
		seg_leq_cnt.set(it, seg_leq_cnt[it]-1);
		seg_les_cnt.set(0, seg_les_cnt[0]-1);
		seg_les_cnt.set(it, seg_les_cnt[it]+1);
	};

	vector<ll> ans(q);
	auto f = [&](int query_id) -> void {
		ll x_idx = compress[x[query_id]];
		ans[query_id] -= seg_leq.fold(0, x_idx) - seg_leq_cnt.fold(0, x_idx)*x[query_id];
		ans[query_id] += seg_les.fold(0, x_idx) - seg_les_cnt.fold(0, x_idx)*x[query_id]; 
	};
	
	mo.calc(add, erase, f);

	rep(i, q){
		cout << ans[i] << '\n';
	}
}

void mmrz::solve(){
	int t = 1;
	//cin >> t;
	while(t--)SOLVE();
}
0