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Submission #1002874

# Submission time Handle Problem Language Result Execution time Memory
1002874 2024-06-19T20:58:09 Z PagodePaiva Autobahn (COI21_autobahn) C++17
100 / 100
 370 ms 35996 KB 
#include<bits/stdc++.h>
#define endl '\n'
#define int long long

using namespace std;

const int debug = 0;
const int N = 1e5+20;
map <int, vector <int>> tempos;

int32_t main(){
	int n, k, x;
	cin >> n >> k >> x;
	for(int i = 0;i < n;i++){
		int l, t, r;
		cin >> l >> t >> r;
		tempos[l].push_back(0);
		tempos[r+1].push_back(1);
		tempos[l+t].push_back(2);
		tempos[r+1].push_back(3);
	}
	int r = 0, l = -x+1;
	int qtdl = 0, qtdr = 0, vall = 0, valr = 0;
	int res = 0, soma = 0;
	while(tempos.upper_bound(r) != tempos.end()){
		//cout << l << ' ' << r << endl;
		auto it = tempos.upper_bound(l);
		int l1 = it->first;
		it = tempos.upper_bound(r);
		int r1 = it->first;
		//cout << l1 << ' ' << r1 << endl;
		if(l1-l < r1-r){
			// vou do [l, r] ate [l1-1, l1-1+x-1]
			// l1-l
			soma -= (qtdl >= k)*vall*(l1-l-1);
			// l1-1+x-r
			soma += (qtdr >= k)*valr*(l1+x-r-2);
			res = max(res, soma);
			l = l1-1;
			r = l1-1+x-1;
			soma -= (qtdl >= k)*vall;
			l++;
			r++;
			for(auto typ : tempos[l]){
				if(typ == 0) qtdl++;
				if(typ == 1) qtdl--;
				if(typ == 2) vall++;
				if(typ == 3) vall--;
			}
			soma += (qtdr >= k)*valr;
			res = max(res, soma);
		}
		else if(l1-l > r1-r){
			// vou do [l, r] ate [r1-x, r1-1]
			//r1-x-l+1
			soma -= (qtdl >= k)*vall*(r1-x-l);
			soma += (qtdr >= k)*valr*(r1-r-1);
			res = max(res, soma);
			l = r1-x;
			r = r1-1;
			soma -= (qtdl >= k)*vall;
			l++;
			r++;
			for(auto typ : tempos[r]){
				if(typ == 0) qtdr++;
				if(typ == 1) qtdr--;
				if(typ == 2) valr++;
				if(typ == 3) valr--;
			}
			soma += (qtdr >= k)*valr;
			res = max(res, soma);
		}
		else{
			soma -= (qtdl >= k)*vall*(r1-x-l);
			soma += (qtdr >= k)*valr*(r1-r-1);
			res = max(res, soma);
			l = l1-1;
			r = l1-1+x-1;
			soma -= (qtdl >= k)*vall;
			l++;
			r++;
			for(auto typ : tempos[l]){
				if(typ == 0) qtdl++;
				if(typ == 1) qtdl--;
				if(typ == 2) vall++;
				if(typ == 3) vall--;
			}
			for(auto typ : tempos[r]){
				if(typ == 0) qtdr++;
				if(typ == 1) qtdr--;
				if(typ == 2) valr++;
				if(typ == 3) valr--;
			}
			soma += (qtdr >= k)*valr;
			res = max(res, soma);
		}
	}
	cout << res << endl;
	return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 424 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 424 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 353 ms 35820 KB Output is correct
22 Correct 340 ms 35996 KB Output is correct
23 Correct 296 ms 35920 KB Output is correct
24 Correct 327 ms 35752 KB Output is correct
25 Correct 370 ms 35924 KB Output is correct
26 Correct 335 ms 35976 KB Output is correct
27 Correct 276 ms 35920 KB Output is correct
28 Correct 327 ms 35924 KB Output is correct
29 Correct 304 ms 35788 KB Output is correct