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답안 #231366

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
231366 2020-05-13T12:40:34 Z maskoff Bigger segments (IZhO19_segments) C++14
37 / 100
 194 ms 101988 KB 
#include <bits/stdc++.h>
#include <ext/rope>
#include <random>
#include <chrono>
#include <ext/pb_ds/assoc_container.hpp>
 
#define file ""
 
#define all(x) x.begin(), x.end()
 
#define sc second
#define fr first
 
#define pb push_back
#define mp make_pair

#define pss pair<line*, line*>
 
using namespace std;
using namespace __gnu_cxx;
 
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
                                    
const ll inf = 1e18;
const int MOD = 1e9 + 7;
                                          
const int dx[] = {+1, -1, 0, 0};
const int dy[] = {0, 0, +1, -1};

int const N = 1e6 + 5;

vector<pll> t(2 * N + 20); 
int L[2 * N + 20], R[2 * N + 20];
int cnt = 1;

void update (ll u, ll l, ll r, ll pos, pll val) {
	if(l > r) return;
 	if (l == r) {
 	 	t[u] = val;
 	 	return;
 	}
 	ll m = (l + r) / 2;
 	if (pos <= m) {
 	 	if (!L[u]) L[u] = ++cnt;
 	 	update (L[u], l, m, pos, val);
 	}
 	else {
 	 	if (!R[u]) R[u] = ++cnt;
 	 	update (R[u], m + 1, r, pos, val);
 	}
 	t[u] = max(t[L[u]], t[R[u]]);
}

pll get (ll u, ll ul, ll ur, ll l, ll r) {
 	if (!u || l > r || ul > ur || l > ur || ul > r)
 		return {0, 0};
 	if (l <= ul && ur <= r)
 		return t[u];
 	ll um = (ul + ur) / 2;
 	return max(get(L[u], ul, um, l, r), get(R[u], um + 1, ur, l, r));
}

int main() {    
	ios_base :: sync_with_stdio(false);
  cin.tie(nullptr);
  int n;
  cin >> n;
  vector<ll> a(n + 1), pref(n + 1);
  for (int i = 1; i <= n; i++)
  	cin >> a[i];
  for (int i = 1; i <= n; i++)
  	pref[i] = pref[i - 1] + a[i];
  vector<ll> dp(n + 1), sum(n + 1);

  for (int i = 1; i <= n; i++) {
  	pii k = get(1, 1, inf, 1, pref[i]);
  	dp[i] = k.fr + 1;
  	sum[i] = pref[i] - pref[k.sc];
  	update (1, 1, inf, sum[i] + pref[i], {dp[i], i});
  }
  cout << dp[n];
	return 0;
}

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 31616 KB Output is correct
2 Correct 20 ms 31616 KB Output is correct
3 Correct 20 ms 31744 KB Output is correct
4 Correct 22 ms 31616 KB Output is correct
5 Correct 20 ms 31616 KB Output is correct
6 Correct 20 ms 31640 KB Output is correct
7 Correct 20 ms 31616 KB Output is correct
8 Correct 20 ms 31744 KB Output is correct
9 Correct 20 ms 31744 KB Output is correct
10 Correct 20 ms 31616 KB Output is correct
11 Correct 20 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 20 ms 31616 KB Output is correct
14 Correct 20 ms 31616 KB Output is correct
15 Correct 20 ms 31616 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 31616 KB Output is correct
2 Correct 20 ms 31616 KB Output is correct
3 Correct 20 ms 31744 KB Output is correct
4 Correct 22 ms 31616 KB Output is correct
5 Correct 20 ms 31616 KB Output is correct
6 Correct 20 ms 31640 KB Output is correct
7 Correct 20 ms 31616 KB Output is correct
8 Correct 20 ms 31744 KB Output is correct
9 Correct 20 ms 31744 KB Output is correct
10 Correct 20 ms 31616 KB Output is correct
11 Correct 20 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 20 ms 31616 KB Output is correct
14 Correct 20 ms 31616 KB Output is correct
15 Correct 20 ms 31616 KB Output is correct
16 Correct 20 ms 31872 KB Output is correct
17 Correct 21 ms 31744 KB Output is correct
18 Correct 20 ms 31744 KB Output is correct
19 Correct 20 ms 31744 KB Output is correct
20 Correct 21 ms 31744 KB Output is correct
21 Correct 20 ms 31744 KB Output is correct
22 Correct 20 ms 31744 KB Output is correct
23 Correct 20 ms 31744 KB Output is correct
24 Correct 20 ms 31744 KB Output is correct
25 Correct 20 ms 31872 KB Output is correct
26 Correct 20 ms 31744 KB Output is correct
27 Correct 20 ms 31744 KB Output is correct
28 Correct 20 ms 31744 KB Output is correct
29 Correct 20 ms 31744 KB Output is correct
30 Correct 20 ms 31744 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 31616 KB Output is correct
2 Correct 20 ms 31616 KB Output is correct
3 Correct 20 ms 31744 KB Output is correct
4 Correct 22 ms 31616 KB Output is correct
5 Correct 20 ms 31616 KB Output is correct
6 Correct 20 ms 31640 KB Output is correct
7 Correct 20 ms 31616 KB Output is correct
8 Correct 20 ms 31744 KB Output is correct
9 Correct 20 ms 31744 KB Output is correct
10 Correct 20 ms 31616 KB Output is correct
11 Correct 20 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 20 ms 31616 KB Output is correct
14 Correct 20 ms 31616 KB Output is correct
15 Correct 20 ms 31616 KB Output is correct
16 Correct 20 ms 31872 KB Output is correct
17 Correct 21 ms 31744 KB Output is correct
18 Correct 20 ms 31744 KB Output is correct
19 Correct 20 ms 31744 KB Output is correct
20 Correct 21 ms 31744 KB Output is correct
21 Correct 20 ms 31744 KB Output is correct
22 Correct 20 ms 31744 KB Output is correct
23 Correct 20 ms 31744 KB Output is correct
24 Correct 20 ms 31744 KB Output is correct
25 Correct 20 ms 31872 KB Output is correct
26 Correct 20 ms 31744 KB Output is correct
27 Correct 20 ms 31744 KB Output is correct
28 Correct 20 ms 31744 KB Output is correct
29 Correct 20 ms 31744 KB Output is correct
30 Correct 20 ms 31744 KB Output is correct
31 Correct 23 ms 32128 KB Output is correct
32 Correct 24 ms 32256 KB Output is correct
33 Correct 25 ms 32384 KB Output is correct
34 Correct 25 ms 32376 KB Output is correct
35 Correct 26 ms 32512 KB Output is correct
36 Correct 24 ms 32512 KB Output is correct
37 Correct 23 ms 32384 KB Output is correct
38 Correct 23 ms 32256 KB Output is correct
39 Correct 28 ms 31872 KB Output is correct
40 Correct 25 ms 32376 KB Output is correct
41 Correct 23 ms 31872 KB Output is correct
42 Correct 23 ms 32000 KB Output is correct
43 Correct 25 ms 31872 KB Output is correct
44 Correct 24 ms 32128 KB Output is correct
45 Correct 25 ms 32000 KB Output is correct

Subtask #4
0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 31616 KB Output is correct
2 Correct 20 ms 31616 KB Output is correct
3 Correct 20 ms 31744 KB Output is correct
4 Correct 22 ms 31616 KB Output is correct
5 Correct 20 ms 31616 KB Output is correct
6 Correct 20 ms 31640 KB Output is correct
7 Correct 20 ms 31616 KB Output is correct
8 Correct 20 ms 31744 KB Output is correct
9 Correct 20 ms 31744 KB Output is correct
10 Correct 20 ms 31616 KB Output is correct
11 Correct 20 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 20 ms 31616 KB Output is correct
14 Correct 20 ms 31616 KB Output is correct
15 Correct 20 ms 31616 KB Output is correct
16 Correct 20 ms 31872 KB Output is correct
17 Correct 21 ms 31744 KB Output is correct
18 Correct 20 ms 31744 KB Output is correct
19 Correct 20 ms 31744 KB Output is correct
20 Correct 21 ms 31744 KB Output is correct
21 Correct 20 ms 31744 KB Output is correct
22 Correct 20 ms 31744 KB Output is correct
23 Correct 20 ms 31744 KB Output is correct
24 Correct 20 ms 31744 KB Output is correct
25 Correct 20 ms 31872 KB Output is correct
26 Correct 20 ms 31744 KB Output is correct
27 Correct 20 ms 31744 KB Output is correct
28 Correct 20 ms 31744 KB Output is correct
29 Correct 20 ms 31744 KB Output is correct
30 Correct 20 ms 31744 KB Output is correct
31 Correct 23 ms 32128 KB Output is correct
32 Correct 24 ms 32256 KB Output is correct
33 Correct 25 ms 32384 KB Output is correct
34 Correct 25 ms 32376 KB Output is correct
35 Correct 26 ms 32512 KB Output is correct
36 Correct 24 ms 32512 KB Output is correct
37 Correct 23 ms 32384 KB Output is correct
38 Correct 23 ms 32256 KB Output is correct
39 Correct 28 ms 31872 KB Output is correct
40 Correct 25 ms 32376 KB Output is correct
41 Correct 23 ms 31872 KB Output is correct
42 Correct 23 ms 32000 KB Output is correct
43 Correct 25 ms 31872 KB Output is correct
44 Correct 24 ms 32128 KB Output is correct
45 Correct 25 ms 32000 KB Output is correct
46 Correct 122 ms 43384 KB Output is correct
47 Correct 152 ms 44664 KB Output is correct
48 Runtime error 194 ms 101988 KB Execution killed with signal 11 (could be triggered by violating memory limits)
49 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 31616 KB Output is correct
2 Correct 20 ms 31616 KB Output is correct
3 Correct 20 ms 31744 KB Output is correct
4 Correct 22 ms 31616 KB Output is correct
5 Correct 20 ms 31616 KB Output is correct
6 Correct 20 ms 31640 KB Output is correct
7 Correct 20 ms 31616 KB Output is correct
8 Correct 20 ms 31744 KB Output is correct
9 Correct 20 ms 31744 KB Output is correct
10 Correct 20 ms 31616 KB Output is correct
11 Correct 20 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 20 ms 31616 KB Output is correct
14 Correct 20 ms 31616 KB Output is correct
15 Correct 20 ms 31616 KB Output is correct
16 Correct 20 ms 31872 KB Output is correct
17 Correct 21 ms 31744 KB Output is correct
18 Correct 20 ms 31744 KB Output is correct
19 Correct 20 ms 31744 KB Output is correct
20 Correct 21 ms 31744 KB Output is correct
21 Correct 20 ms 31744 KB Output is correct
22 Correct 20 ms 31744 KB Output is correct
23 Correct 20 ms 31744 KB Output is correct
24 Correct 20 ms 31744 KB Output is correct
25 Correct 20 ms 31872 KB Output is correct
26 Correct 20 ms 31744 KB Output is correct
27 Correct 20 ms 31744 KB Output is correct
28 Correct 20 ms 31744 KB Output is correct
29 Correct 20 ms 31744 KB Output is correct
30 Correct 20 ms 31744 KB Output is correct
31 Correct 23 ms 32128 KB Output is correct
32 Correct 24 ms 32256 KB Output is correct
33 Correct 25 ms 32384 KB Output is correct
34 Correct 25 ms 32376 KB Output is correct
35 Correct 26 ms 32512 KB Output is correct
36 Correct 24 ms 32512 KB Output is correct
37 Correct 23 ms 32384 KB Output is correct
38 Correct 23 ms 32256 KB Output is correct
39 Correct 28 ms 31872 KB Output is correct
40 Correct 25 ms 32376 KB Output is correct
41 Correct 23 ms 31872 KB Output is correct
42 Correct 23 ms 32000 KB Output is correct
43 Correct 25 ms 31872 KB Output is correct
44 Correct 24 ms 32128 KB Output is correct
45 Correct 25 ms 32000 KB Output is correct
46 Correct 122 ms 43384 KB Output is correct
47 Correct 152 ms 44664 KB Output is correct
48 Runtime error 194 ms 101988 KB Execution killed with signal 11 (could be triggered by violating memory limits)
49 Halted 0 ms 0 KB -