Submission #397041

#	Time	Username	Problem	Language	Result	Execution time	Memory
397041		jsannemo	Global Warming (CEOI18_glo)	C++14	10 / 100	63 ms	3192 KiB

glo

#include <bits/stdc++.h>
using namespace std;

#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;

int main() {
	cin.tie(0)->sync_with_stdio(0);
	cin.exceptions(cin.failbit);

	int N, D;
	cin >> N >> D;
	typedef pair<int, int> p;
	vector<p> res1, res2;
	rep(i,0,N) {
		int x;
		cin >> x;
		auto it1 = lower_bound(all(res1), p{x, 0});
		if (it1 == res1.end()) res1.emplace_back(), it1 = res1.end()-1;
		*it1 = {x, i};

		auto it2 = lower_bound(all(res2), p{x, 0});
		if (it2 == res2.end()) res2.emplace_back(), it2 = res2.end()-1;
		*it2 = {x, i};
		
		int it3 = lower_bound(all(res1), p{x+D, 0}) - res1.begin();
		if (it3 == sz(res2)) res2.emplace_back(x, i);
		res2[it3] = {x, i};
	}
	cout << max(sz(res1), sz(res2)) << endl;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 13
• Subtask 4: 10 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25