Submission #236883

#	Time	Username	Problem	Language	Result	Execution time	Memory
236883		DanShaders	Deda (COCI17_deda)	C++17	140 / 140	494 ms	6924 KiB

deda

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;

#define all(x) begin(x), end(x)
#define x first
#define y second
typedef long long ll;
typedef long double ld;

template<typename T>
using ordered_set_ = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

template<typename T>
using normal_queue = priority_queue<T, vector<T>, greater<T>>;

const int MAX_TREE = 1 << 19, MAX_N = 1 << 18, INF = 0x3f3f3f3f;

int tre[MAX_TREE];

void build() {
	fill(tre, tre + MAX_TREE, +INF);
}

void set_(int i, int x) {
	i += MAX_N;
	tre[i] = x;
	i /= 2;
	while (i) {
		tre[i] = min(tre[2 * i], tre[2 * i + 1]);
		i /= 2;
	}
}

int get(int l, int r) {
	l += MAX_N;
	r += MAX_N;
	int res = +INF;
	while (l <= r) {
		if (l & 1)	res = min(res, tre[l]);
		if (!(r & 1))	res = min(res, tre[r]);
		l = (l + 1) / 2;
		r = (r - 1) / 2;
	}
	return res;
}

signed main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n, m;
	cin >> n >> m;
	build();
	for (int i = 0; i < m; ++i) {
		char type;
		cin >> type;
		if (type == 'M') {
			int x, a;
			cin >> x >> a;
			--a;
			set_(a, x);
		} else {
			int y, b;
			cin >> y >> b;
			--b;
			int lef = b - 1, rig = n;
			while (rig - lef > 1) {
				int mid = (lef + rig) / 2;
				if (get(b, mid) <= y)
					rig = mid;
				else
					lef = mid;
			}
			if (rig == n)
				cout << "-1\n";
			else
				cout << rig + 1 << "\n";
		}
	}
	return 0;
}

• Subtask 1: 140 / 140