oj.uz

Submission #231381

# Submission time Handle Problem Language Result Execution time Memory
231381 2020-05-13T13:19:59 Z maskoff Bigger segments (IZhO19_segments) C++14
73 / 100
 593 ms 246432 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(4 * N + 20); 
int L[4 * N + 20], R[4 * N + 20];
int cnt = 1;

void update (int 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 (int 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<int> a(N);
  for (int i = 1; i <= n; i++)
  	cin >> a[i];
  vector<ll> dp(N), sum(N), pref(N);
  for (int i = 1; i <= n; i++)
  	pref[i] = pref[i - 1] + a[i];

  for (int i = 1; i <= n; i++) {
  	pll 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

# Verdict Execution time Memory Grader output
1 Correct 48 ms 90360 KB Output is correct
2 Correct 47 ms 90360 KB Output is correct
3 Correct 46 ms 90360 KB Output is correct
4 Correct 48 ms 90360 KB Output is correct
5 Correct 48 ms 90360 KB Output is correct
6 Correct 47 ms 90360 KB Output is correct
7 Correct 46 ms 90360 KB Output is correct
8 Correct 46 ms 90360 KB Output is correct
9 Correct 45 ms 90360 KB Output is correct
10 Correct 46 ms 90360 KB Output is correct
11 Correct 47 ms 90368 KB Output is correct
12 Correct 47 ms 90360 KB Output is correct
13 Correct 46 ms 90360 KB Output is correct
14 Correct 50 ms 90360 KB Output is correct
15 Correct 48 ms 90368 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 90360 KB Output is correct
2 Correct 47 ms 90360 KB Output is correct
3 Correct 46 ms 90360 KB Output is correct
4 Correct 48 ms 90360 KB Output is correct
5 Correct 48 ms 90360 KB Output is correct
6 Correct 47 ms 90360 KB Output is correct
7 Correct 46 ms 90360 KB Output is correct
8 Correct 46 ms 90360 KB Output is correct
9 Correct 45 ms 90360 KB Output is correct
10 Correct 46 ms 90360 KB Output is correct
11 Correct 47 ms 90368 KB Output is correct
12 Correct 47 ms 90360 KB Output is correct
13 Correct 46 ms 90360 KB Output is correct
14 Correct 50 ms 90360 KB Output is correct
15 Correct 48 ms 90368 KB Output is correct
16 Correct 46 ms 90488 KB Output is correct
17 Correct 47 ms 90488 KB Output is correct
18 Correct 48 ms 90488 KB Output is correct
19 Correct 47 ms 90492 KB Output is correct
20 Correct 46 ms 90488 KB Output is correct
21 Correct 49 ms 90488 KB Output is correct
22 Correct 48 ms 90488 KB Output is correct
23 Correct 46 ms 90488 KB Output is correct
24 Correct 47 ms 90368 KB Output is correct
25 Correct 47 ms 90544 KB Output is correct
26 Correct 47 ms 90368 KB Output is correct
27 Correct 46 ms 90364 KB Output is correct
28 Correct 48 ms 90360 KB Output is correct
29 Correct 46 ms 90360 KB Output is correct
30 Correct 49 ms 90360 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 90360 KB Output is correct
2 Correct 47 ms 90360 KB Output is correct
3 Correct 46 ms 90360 KB Output is correct
4 Correct 48 ms 90360 KB Output is correct
5 Correct 48 ms 90360 KB Output is correct
6 Correct 47 ms 90360 KB Output is correct
7 Correct 46 ms 90360 KB Output is correct
8 Correct 46 ms 90360 KB Output is correct
9 Correct 45 ms 90360 KB Output is correct
10 Correct 46 ms 90360 KB Output is correct
11 Correct 47 ms 90368 KB Output is correct
12 Correct 47 ms 90360 KB Output is correct
13 Correct 46 ms 90360 KB Output is correct
14 Correct 50 ms 90360 KB Output is correct
15 Correct 48 ms 90368 KB Output is correct
16 Correct 46 ms 90488 KB Output is correct
17 Correct 47 ms 90488 KB Output is correct
18 Correct 48 ms 90488 KB Output is correct
19 Correct 47 ms 90492 KB Output is correct
20 Correct 46 ms 90488 KB Output is correct
21 Correct 49 ms 90488 KB Output is correct
22 Correct 48 ms 90488 KB Output is correct
23 Correct 46 ms 90488 KB Output is correct
24 Correct 47 ms 90368 KB Output is correct
25 Correct 47 ms 90544 KB Output is correct
26 Correct 47 ms 90368 KB Output is correct
27 Correct 46 ms 90364 KB Output is correct
28 Correct 48 ms 90360 KB Output is correct
29 Correct 46 ms 90360 KB Output is correct
30 Correct 49 ms 90360 KB Output is correct
31 Correct 49 ms 90744 KB Output is correct
32 Correct 49 ms 90872 KB Output is correct
33 Correct 50 ms 91000 KB Output is correct
34 Correct 51 ms 91000 KB Output is correct
35 Correct 52 ms 91128 KB Output is correct
36 Correct 50 ms 91128 KB Output is correct
37 Correct 49 ms 91000 KB Output is correct
38 Correct 49 ms 91000 KB Output is correct
39 Correct 48 ms 90488 KB Output is correct
40 Correct 51 ms 91136 KB Output is correct
41 Correct 50 ms 90488 KB Output is correct
42 Correct 50 ms 90616 KB Output is correct
43 Correct 50 ms 90488 KB Output is correct
44 Correct 49 ms 90616 KB Output is correct
45 Correct 49 ms 90616 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 90360 KB Output is correct
2 Correct 47 ms 90360 KB Output is correct
3 Correct 46 ms 90360 KB Output is correct
4 Correct 48 ms 90360 KB Output is correct
5 Correct 48 ms 90360 KB Output is correct
6 Correct 47 ms 90360 KB Output is correct
7 Correct 46 ms 90360 KB Output is correct
8 Correct 46 ms 90360 KB Output is correct
9 Correct 45 ms 90360 KB Output is correct
10 Correct 46 ms 90360 KB Output is correct
11 Correct 47 ms 90368 KB Output is correct
12 Correct 47 ms 90360 KB Output is correct
13 Correct 46 ms 90360 KB Output is correct
14 Correct 50 ms 90360 KB Output is correct
15 Correct 48 ms 90368 KB Output is correct
16 Correct 46 ms 90488 KB Output is correct
17 Correct 47 ms 90488 KB Output is correct
18 Correct 48 ms 90488 KB Output is correct
19 Correct 47 ms 90492 KB Output is correct
20 Correct 46 ms 90488 KB Output is correct
21 Correct 49 ms 90488 KB Output is correct
22 Correct 48 ms 90488 KB Output is correct
23 Correct 46 ms 90488 KB Output is correct
24 Correct 47 ms 90368 KB Output is correct
25 Correct 47 ms 90544 KB Output is correct
26 Correct 47 ms 90368 KB Output is correct
27 Correct 46 ms 90364 KB Output is correct
28 Correct 48 ms 90360 KB Output is correct
29 Correct 46 ms 90360 KB Output is correct
30 Correct 49 ms 90360 KB Output is correct
31 Correct 49 ms 90744 KB Output is correct
32 Correct 49 ms 90872 KB Output is correct
33 Correct 50 ms 91000 KB Output is correct
34 Correct 51 ms 91000 KB Output is correct
35 Correct 52 ms 91128 KB Output is correct
36 Correct 50 ms 91128 KB Output is correct
37 Correct 49 ms 91000 KB Output is correct
38 Correct 49 ms 91000 KB Output is correct
39 Correct 48 ms 90488 KB Output is correct
40 Correct 51 ms 91136 KB Output is correct
41 Correct 50 ms 90488 KB Output is correct
42 Correct 50 ms 90616 KB Output is correct
43 Correct 50 ms 90488 KB Output is correct
44 Correct 49 ms 90616 KB Output is correct
45 Correct 49 ms 90616 KB Output is correct
46 Correct 146 ms 98936 KB Output is correct
47 Correct 171 ms 100216 KB Output is correct
48 Correct 189 ms 110584 KB Output is correct
49 Correct 203 ms 112124 KB Output is correct
50 Correct 227 ms 114424 KB Output is correct
51 Correct 197 ms 114040 KB Output is correct
52 Correct 115 ms 102136 KB Output is correct
53 Correct 90 ms 97528 KB Output is correct
54 Correct 166 ms 93308 KB Output is correct
55 Correct 210 ms 113252 KB Output is correct
56 Correct 190 ms 100600 KB Output is correct
57 Correct 180 ms 98808 KB Output is correct
58 Correct 190 ms 99704 KB Output is correct
59 Correct 208 ms 103852 KB Output is correct
60 Correct 197 ms 103932 KB Output is correct

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 90360 KB Output is correct
2 Correct 47 ms 90360 KB Output is correct
3 Correct 46 ms 90360 KB Output is correct
4 Correct 48 ms 90360 KB Output is correct
5 Correct 48 ms 90360 KB Output is correct
6 Correct 47 ms 90360 KB Output is correct
7 Correct 46 ms 90360 KB Output is correct
8 Correct 46 ms 90360 KB Output is correct
9 Correct 45 ms 90360 KB Output is correct
10 Correct 46 ms 90360 KB Output is correct
11 Correct 47 ms 90368 KB Output is correct
12 Correct 47 ms 90360 KB Output is correct
13 Correct 46 ms 90360 KB Output is correct
14 Correct 50 ms 90360 KB Output is correct
15 Correct 48 ms 90368 KB Output is correct
16 Correct 46 ms 90488 KB Output is correct
17 Correct 47 ms 90488 KB Output is correct
18 Correct 48 ms 90488 KB Output is correct
19 Correct 47 ms 90492 KB Output is correct
20 Correct 46 ms 90488 KB Output is correct
21 Correct 49 ms 90488 KB Output is correct
22 Correct 48 ms 90488 KB Output is correct
23 Correct 46 ms 90488 KB Output is correct
24 Correct 47 ms 90368 KB Output is correct
25 Correct 47 ms 90544 KB Output is correct
26 Correct 47 ms 90368 KB Output is correct
27 Correct 46 ms 90364 KB Output is correct
28 Correct 48 ms 90360 KB Output is correct
29 Correct 46 ms 90360 KB Output is correct
30 Correct 49 ms 90360 KB Output is correct
31 Correct 49 ms 90744 KB Output is correct
32 Correct 49 ms 90872 KB Output is correct
33 Correct 50 ms 91000 KB Output is correct
34 Correct 51 ms 91000 KB Output is correct
35 Correct 52 ms 91128 KB Output is correct
36 Correct 50 ms 91128 KB Output is correct
37 Correct 49 ms 91000 KB Output is correct
38 Correct 49 ms 91000 KB Output is correct
39 Correct 48 ms 90488 KB Output is correct
40 Correct 51 ms 91136 KB Output is correct
41 Correct 50 ms 90488 KB Output is correct
42 Correct 50 ms 90616 KB Output is correct
43 Correct 50 ms 90488 KB Output is correct
44 Correct 49 ms 90616 KB Output is correct
45 Correct 49 ms 90616 KB Output is correct
46 Correct 146 ms 98936 KB Output is correct
47 Correct 171 ms 100216 KB Output is correct
48 Correct 189 ms 110584 KB Output is correct
49 Correct 203 ms 112124 KB Output is correct
50 Correct 227 ms 114424 KB Output is correct
51 Correct 197 ms 114040 KB Output is correct
52 Correct 115 ms 102136 KB Output is correct
53 Correct 90 ms 97528 KB Output is correct
54 Correct 166 ms 93308 KB Output is correct
55 Correct 210 ms 113252 KB Output is correct
56 Correct 190 ms 100600 KB Output is correct
57 Correct 180 ms 98808 KB Output is correct
58 Correct 190 ms 99704 KB Output is correct
59 Correct 208 ms 103852 KB Output is correct
60 Correct 197 ms 103932 KB Output is correct
61 Runtime error 593 ms 246432 KB Execution killed with signal 11 (could be triggered by violating memory limits)
62 Halted 0 ms 0 KB -