Submission #772333

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
772333	2023-07-04T04:02:31 Z	marvinthang	Radio Towers (IOI22_towers)	C++17	11 / 100	4000 ms	9084 KB

towers

/*************************************
*    author: marvinthang             *
*    created: 04.07.2023 09:31:20    *
*************************************/

#include "towers.h"
#include <bits/stdc++.h>

using namespace std;

#define                  fi  first
#define                  se  second
#define                left  ___left
#define               right  ___right
#define                TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define             MASK(i)  (1LL << (i))
#define           BIT(x, i)  ((x) >> (i) & 1)
#define  __builtin_popcount  __builtin_popcountll
#define              ALL(v)  (v).begin(), (v).end()
#define           REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define          REPD(i, n)  for (int i = (n); i--; )
#define        FOR(i, a, b)  for (int i = (a), _b = (b); i < _b; ++i) 
#define       FORD(i, b, a)  for (int i = (b), _a = (a); --i >= _a; ) 
#define       FORE(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define      FORDE(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i) 
#define        scan_op(...)  istream & operator >> (istream &in, __VA_ARGS__ &u)
#define       print_op(...)  ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
		#include "debug.h"
#else
		#define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
		#define DB(...) 23
		#define db(...) 23
		#define debug(...) 23
#endif

template <class U, class V> scan_op(pair <U, V>)  { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>)  { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>)  { return out << '(' << u.first << ", " << u.second << ')'; }
template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) { if constexpr(i == tuple_size<T>::value) return out << ")";  else return print_tuple_utils<i + 1, T>(out << (i ? ", " : "(") << get<i>(tup), tup); }
template <class ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(out, u); }
template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream&>::type operator << (ostream &out, const Con &con) { out << '{'; for (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }

// end of template

int N;
vector <int> H;

void init(int n, vector<int> h) {
	N = n;
	H = h;

}

int max_towers(int l, int r, int d) {
	vector <int> left(N), right(N);
	vector <pair <int, int>> events;
	REP(i, N) {
		events.emplace_back(H[i], i);
		events.emplace_back(H[i] + d, -1 - i);
	}
	sort(events.rbegin(), events.rend());
	set <int> s;
	for (auto [h, x]: events) {
		if (x >= 0) s.insert(x);
		else {
			x = -1 - x;
			auto it = s.lower_bound(x);
			left[x] = it != s.begin() ? *prev(it) : -1;
			right[x] = it != s.end() ? *it : N;
		}
	}
	s.clear();
	reverse(ALL(events));
	for (auto [h, x]: events) if (x >= 0) {
		auto it = s.lower_bound(x);
		if (it != s.end() && *it < right[x]) continue;
		if (it != s.begin() && *prev(it) > left[x]) continue;
		s.insert(x);
	}
	while (!s.empty() && *s.begin() < l) s.erase(s.begin());
	while (!s.empty() && *s.rbegin() > r) s.erase(*s.rbegin());
	int res = s.size();
	if (!res) {
		int p = -1;
		FORE(i, l, r) if (p == -1 || H[p] > H[i]) p = i;
		s.insert(p);
		++res;
	}
	int x = *s.begin();
	int y = *s.rbegin();
	int bi = -1, bj = -1;
	FOR(i, l, x) FOR(j, i + 1, x) if (bi == -1 || H[bj] - H[bi] < H[j] - H[i]) bi = i, bj = j;
	res += H[bj] - H[bi] >= d;

	bi = -1, bj = -1;
	FORE(j, y + 1, r) FORE(i, j + 1, r) if (bi == -1 || H[bj] - H[bi] < H[j] - H[i]) bi = i, bj = j;

	res += H[bj] - H[bi] >= d;
	return res;
}

Subtask #1
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	4069 ms	5052 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #2
11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	208 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	2 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	336 KB	Output is correct
12	Correct	0 ms	208 KB	Output is correct
13	Correct	2 ms	336 KB	Output is correct
14	Correct	2 ms	336 KB	Output is correct
15	Correct	1 ms	336 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	2 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	9 ms	336 KB	Output is correct
24	Correct	2 ms	336 KB	Output is correct
25	Correct	1 ms	336 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	1 ms	336 KB	Output is correct
32	Correct	8 ms	452 KB	Output is correct
33	Correct	9 ms	452 KB	Output is correct
34	Correct	8 ms	336 KB	Output is correct
35	Correct	2 ms	336 KB	Output is correct

Subtask #3
0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	208 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	2 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	336 KB	Output is correct
12	Correct	0 ms	208 KB	Output is correct
13	Correct	2 ms	336 KB	Output is correct
14	Correct	2 ms	336 KB	Output is correct
15	Correct	1 ms	336 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	2 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	9 ms	336 KB	Output is correct
24	Correct	2 ms	336 KB	Output is correct
25	Correct	1 ms	336 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	1 ms	336 KB	Output is correct
32	Correct	8 ms	452 KB	Output is correct
33	Correct	9 ms	452 KB	Output is correct
34	Correct	8 ms	336 KB	Output is correct
35	Correct	2 ms	336 KB	Output is correct
36	Correct	63 ms	5268 KB	Output is correct
37	Correct	65 ms	8012 KB	Output is correct
38	Correct	76 ms	8060 KB	Output is correct
39	Correct	69 ms	8076 KB	Output is correct
40	Correct	88 ms	8036 KB	Output is correct
41	Correct	72 ms	8100 KB	Output is correct
42	Correct	106 ms	8092 KB	Output is correct
43	Execution timed out	4037 ms	8048 KB	Time limit exceeded
44	Halted	0 ms	0 KB	-

Subtask #4
0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	4040 ms	9084 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	4051 ms	2608 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #6
0 / 19.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	208 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	2 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	336 KB	Output is correct
12	Correct	0 ms	208 KB	Output is correct
13	Correct	2 ms	336 KB	Output is correct
14	Correct	2 ms	336 KB	Output is correct
15	Correct	1 ms	336 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	2 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	9 ms	336 KB	Output is correct
24	Correct	2 ms	336 KB	Output is correct
25	Correct	1 ms	336 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	1 ms	336 KB	Output is correct
32	Correct	8 ms	452 KB	Output is correct
33	Correct	9 ms	452 KB	Output is correct
34	Correct	8 ms	336 KB	Output is correct
35	Correct	2 ms	336 KB	Output is correct
36	Correct	63 ms	5268 KB	Output is correct
37	Correct	65 ms	8012 KB	Output is correct
38	Correct	76 ms	8060 KB	Output is correct
39	Correct	69 ms	8076 KB	Output is correct
40	Correct	88 ms	8036 KB	Output is correct
41	Correct	72 ms	8100 KB	Output is correct
42	Correct	106 ms	8092 KB	Output is correct
43	Execution timed out	4037 ms	8048 KB	Time limit exceeded
44	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	4069 ms	5052 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Submission #772333

Compilation message

Subtask #1 0 / 4.0

Subtask #2 11.0 / 11.0

Subtask #3 0 / 12.0

Subtask #4 0 / 14.0

Subtask #5 0 / 17.0

Subtask #6 0 / 19.0

Subtask #7 0 / 23.0

Subtask #1
0 / 4.0

Subtask #2
11.0 / 11.0

Subtask #3
0 / 12.0

Subtask #4
0 / 14.0

Subtask #5
0 / 17.0

Subtask #6
0 / 19.0

Subtask #7
0 / 23.0