제출 #750106

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
750106		Muaath_5	Sterilizing Spray (JOI15_sterilizing)	C++17	0 / 100	124 ms	6676 KiB

sterilizing

#include <bits/stdc++.h>
#define ll long long
#define umin(x, y) x = min(x, y)
#define sq(x) ((x)*(x))
using namespace std;

const int N = 1e5+1;

int n, q, k, c[N];

ll tree[4 * N];
ll modsum[4 * N];
int lazy[4 * N];

inline void pushdown(int node)
{
	if (lazy[node]) {
		lazy[node * 2] += lazy[node];
		lazy[node * 2 + 1] += lazy[node];
		modsum[node] /= pow(k, lazy[node]);
		tree[node] = modsum[node];
		lazy[node] = 0;
	}
}

void build(int l=0, int r=N-1, int node=1)
{
	if (l == r) {
		tree[node] = c[l];
		modsum[node] = c[l] - (c[l] % k);
		return;
	}
	const int mid = (l + r) / 2;
	build(l, mid, node*2);
	build(mid + 1, r, node*2+1);
	tree[node] = tree[node * 2] + tree[node * 2 + 1];
	modsum[node] = modsum[node * 2] + modsum[node * 2 + 1];
}

void update(int idx, int val, int l =0, int r = N-1, int node=1)
{
	if (l == r) {
		tree[node] = val;
		modsum[node] = val - (val % k);
		return;
	}
	pushdown(node);
	const int mid = (l + r) / 2;
	if (idx <= mid)
		update(idx, val, l, mid, node*2);
	else
		update(idx, val, mid + 1, r, node*2+1);
	tree[node] = tree[node * 2] + tree[node * 2 + 1];
	modsum[node] = modsum[node * 2] + modsum[node * 2 + 1];
}

void lazy_update(int ql, int qr, int l=0, int r=N-1, int node=1)
{
	pushdown(node);
	if (r < ql || l > qr) return;
	if (ql <= l && r <= qr) {
		lazy[node]++;
		pushdown(node);
		return;
	}
	const int mid = (l + r) / 2;
	lazy_update(ql, qr, l, mid, node * 2);
	lazy_update(ql, qr, mid + 1, r, node * 2 + 1);
	tree[node] = tree[node * 2] + tree[node * 2 + 1];
}

ll query(int ql, int qr, int l=0, int r=N-1, int node = 1)
{
	pushdown(node);
	if (r < ql || l > qr) return 0;
	if (ql <= l && r <= qr) return tree[node];
	const int mid = (l + r) / 2;
	return
		query(ql, qr, l, mid, node * 2) +
		query(ql, qr, mid + 1, r, node * 2 + 1);
}

int main()
{
	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin >> n >> q >> k;
	for (int i = 0; i < n; cin >> c[i++]);
	build();
	while (q--) {
		int cmd, l, r;
		cin >> cmd >> l >> r;
		if (cmd == 1)
			update(l - 1, r);
		else if (cmd == 2)
			lazy_update(l - 1, r - 1);
		else
			cout << query(l - 1, r - 1) << '\n';
	}
}

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