제출 #752692

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
752692		jmyszka2007	Sterilizing Spray (JOI15_sterilizing)	C++17	0 / 100	5057 ms	5504 KiB

sterilizing

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr int LIM = 1e5;
constexpr int base = (1 << 17);
int tri[2 * base];
int tab[LIM + 10];
void upd(int v, int x) {
	v += base;
	tri[v] = x;
	v /= 2;
	while(v > 0) {
		tri[v] = tri[2 * v] + tri[2 * v + 1];
		v /= 2;
	}
}
ll que(int l, int r) {
	l += base;
	r += base;
	ll ans = 0;
	while(l <= r) {
		if(l & 1) {
			ans += tri[l];
		}
		if(!(r & 1)) {
			ans += tri[r];
		}
		l = (l + 1) / 2;
		r = (r - 1) / 2;
	}
	return ans;
}
int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n, k, t;
	cin >> n >> t >> k;
	set<int>s;
	for(int i = 1; i <= n; i++) {
		cin >> tab[i];
		if(tab[i]) {
			s.insert(i);
		}
		upd(i, tab[i]);
	}
	while(t--) {
		int tp;
		cin >> tp;
		if(tp == 1) {
			int a, b;
			cin >> a >> b;
			tab[a] = b;
			if(b) {
				s.insert(a);
			}
			upd(a, b);
		}
		else if(tp == 2) {
			int l, r;
			cin >> l >> r;
			vector<int>us;
			auto it = s.lower_bound(l);
			while(it != s.end() && *it <= r) {
				tab[*it] /= k;
				upd(*it, tab[*it]);
				if(!tab[*it]) {
					us.push_back(*it);
				}
				it++;
			}
			for(auto x : us) {
				s.erase(x);
			}
		}
		else {
			int l, r;
			cin >> l >> r;
			cout << que(l, r) << '\n';
		}
	}
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 75