oj.uz

Submission #231386

# Submission time Handle Problem Language Result Execution time Memory
231386 2020-05-13T13:27:26 Z maskoff Bigger segments (IZhO19_segments) C++14
73 / 100
 645 ms 262144 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 = 1e16;
const int MOD = 1e9 + 7;
                                          
const int dx[] = {+1, -1, 0, 0};
const int dy[] = {0, 0, +1, -1};

int const N = 8e6;

vector<int> L, R;
vector<pii> t;
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]]);
}

pii 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 + 1);
  L.resize(N);
  R = L;
  t.resize(N);
  for (int i = 1; i <= n; i++)
  	cin >> a[i];
  vector<ll> dp(n + 1), sum(n + 1), pref(n + 1);
  for (int i = 1; i <= n; i++)
  	pref[i] = pref[i - 1] + a[i];

  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

# Verdict Execution time Memory Grader output
1 Correct 73 ms 125560 KB Output is correct
2 Correct 76 ms 125560 KB Output is correct
3 Correct 72 ms 125560 KB Output is correct
4 Correct 68 ms 125572 KB Output is correct
5 Correct 71 ms 125564 KB Output is correct
6 Correct 71 ms 125560 KB Output is correct
7 Correct 70 ms 125688 KB Output is correct
8 Correct 74 ms 125560 KB Output is correct
9 Correct 67 ms 125560 KB Output is correct
10 Correct 69 ms 125560 KB Output is correct
11 Correct 70 ms 125560 KB Output is correct
12 Correct 70 ms 125688 KB Output is correct
13 Correct 75 ms 125564 KB Output is correct
14 Correct 72 ms 125560 KB Output is correct
15 Correct 71 ms 125560 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 125560 KB Output is correct
2 Correct 76 ms 125560 KB Output is correct
3 Correct 72 ms 125560 KB Output is correct
4 Correct 68 ms 125572 KB Output is correct
5 Correct 71 ms 125564 KB Output is correct
6 Correct 71 ms 125560 KB Output is correct
7 Correct 70 ms 125688 KB Output is correct
8 Correct 74 ms 125560 KB Output is correct
9 Correct 67 ms 125560 KB Output is correct
10 Correct 69 ms 125560 KB Output is correct
11 Correct 70 ms 125560 KB Output is correct
12 Correct 70 ms 125688 KB Output is correct
13 Correct 75 ms 125564 KB Output is correct
14 Correct 72 ms 125560 KB Output is correct
15 Correct 71 ms 125560 KB Output is correct
16 Correct 70 ms 125560 KB Output is correct
17 Correct 74 ms 125660 KB Output is correct
18 Correct 76 ms 125560 KB Output is correct
19 Correct 68 ms 125560 KB Output is correct
20 Correct 68 ms 125560 KB Output is correct
21 Correct 72 ms 125672 KB Output is correct
22 Correct 71 ms 125688 KB Output is correct
23 Correct 69 ms 125560 KB Output is correct
24 Correct 72 ms 125560 KB Output is correct
25 Correct 69 ms 125688 KB Output is correct
26 Correct 70 ms 125560 KB Output is correct
27 Correct 69 ms 125816 KB Output is correct
28 Correct 68 ms 125540 KB Output is correct
29 Correct 70 ms 125560 KB Output is correct
30 Correct 69 ms 125560 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 125560 KB Output is correct
2 Correct 76 ms 125560 KB Output is correct
3 Correct 72 ms 125560 KB Output is correct
4 Correct 68 ms 125572 KB Output is correct
5 Correct 71 ms 125564 KB Output is correct
6 Correct 71 ms 125560 KB Output is correct
7 Correct 70 ms 125688 KB Output is correct
8 Correct 74 ms 125560 KB Output is correct
9 Correct 67 ms 125560 KB Output is correct
10 Correct 69 ms 125560 KB Output is correct
11 Correct 70 ms 125560 KB Output is correct
12 Correct 70 ms 125688 KB Output is correct
13 Correct 75 ms 125564 KB Output is correct
14 Correct 72 ms 125560 KB Output is correct
15 Correct 71 ms 125560 KB Output is correct
16 Correct 70 ms 125560 KB Output is correct
17 Correct 74 ms 125660 KB Output is correct
18 Correct 76 ms 125560 KB Output is correct
19 Correct 68 ms 125560 KB Output is correct
20 Correct 68 ms 125560 KB Output is correct
21 Correct 72 ms 125672 KB Output is correct
22 Correct 71 ms 125688 KB Output is correct
23 Correct 69 ms 125560 KB Output is correct
24 Correct 72 ms 125560 KB Output is correct
25 Correct 69 ms 125688 KB Output is correct
26 Correct 70 ms 125560 KB Output is correct
27 Correct 69 ms 125816 KB Output is correct
28 Correct 68 ms 125540 KB Output is correct
29 Correct 70 ms 125560 KB Output is correct
30 Correct 69 ms 125560 KB Output is correct
31 Correct 74 ms 125816 KB Output is correct
32 Correct 75 ms 125688 KB Output is correct
33 Correct 75 ms 125692 KB Output is correct
34 Correct 72 ms 125692 KB Output is correct
35 Correct 81 ms 125688 KB Output is correct
36 Correct 73 ms 125688 KB Output is correct
37 Correct 71 ms 125688 KB Output is correct
38 Correct 71 ms 125688 KB Output is correct
39 Correct 73 ms 125688 KB Output is correct
40 Correct 72 ms 125688 KB Output is correct
41 Correct 73 ms 125688 KB Output is correct
42 Correct 71 ms 125688 KB Output is correct
43 Correct 71 ms 125688 KB Output is correct
44 Correct 71 ms 125688 KB Output is correct
45 Correct 72 ms 125688 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 125560 KB Output is correct
2 Correct 76 ms 125560 KB Output is correct
3 Correct 72 ms 125560 KB Output is correct
4 Correct 68 ms 125572 KB Output is correct
5 Correct 71 ms 125564 KB Output is correct
6 Correct 71 ms 125560 KB Output is correct
7 Correct 70 ms 125688 KB Output is correct
8 Correct 74 ms 125560 KB Output is correct
9 Correct 67 ms 125560 KB Output is correct
10 Correct 69 ms 125560 KB Output is correct
11 Correct 70 ms 125560 KB Output is correct
12 Correct 70 ms 125688 KB Output is correct
13 Correct 75 ms 125564 KB Output is correct
14 Correct 72 ms 125560 KB Output is correct
15 Correct 71 ms 125560 KB Output is correct
16 Correct 70 ms 125560 KB Output is correct
17 Correct 74 ms 125660 KB Output is correct
18 Correct 76 ms 125560 KB Output is correct
19 Correct 68 ms 125560 KB Output is correct
20 Correct 68 ms 125560 KB Output is correct
21 Correct 72 ms 125672 KB Output is correct
22 Correct 71 ms 125688 KB Output is correct
23 Correct 69 ms 125560 KB Output is correct
24 Correct 72 ms 125560 KB Output is correct
25 Correct 69 ms 125688 KB Output is correct
26 Correct 70 ms 125560 KB Output is correct
27 Correct 69 ms 125816 KB Output is correct
28 Correct 68 ms 125540 KB Output is correct
29 Correct 70 ms 125560 KB Output is correct
30 Correct 69 ms 125560 KB Output is correct
31 Correct 74 ms 125816 KB Output is correct
32 Correct 75 ms 125688 KB Output is correct
33 Correct 75 ms 125692 KB Output is correct
34 Correct 72 ms 125692 KB Output is correct
35 Correct 81 ms 125688 KB Output is correct
36 Correct 73 ms 125688 KB Output is correct
37 Correct 71 ms 125688 KB Output is correct
38 Correct 71 ms 125688 KB Output is correct
39 Correct 73 ms 125688 KB Output is correct
40 Correct 72 ms 125688 KB Output is correct
41 Correct 73 ms 125688 KB Output is correct
42 Correct 71 ms 125688 KB Output is correct
43 Correct 71 ms 125688 KB Output is correct
44 Correct 71 ms 125688 KB Output is correct
45 Correct 72 ms 125688 KB Output is correct
46 Correct 161 ms 128504 KB Output is correct
47 Correct 186 ms 128632 KB Output is correct
48 Correct 200 ms 128508 KB Output is correct
49 Correct 216 ms 128504 KB Output is correct
50 Correct 243 ms 128508 KB Output is correct
51 Correct 188 ms 128632 KB Output is correct
52 Correct 135 ms 127096 KB Output is correct
53 Correct 114 ms 126712 KB Output is correct
54 Correct 170 ms 128504 KB Output is correct
55 Correct 205 ms 128504 KB Output is correct
56 Correct 210 ms 128504 KB Output is correct
57 Correct 188 ms 128504 KB Output is correct
58 Correct 205 ms 128504 KB Output is correct
59 Correct 213 ms 128504 KB Output is correct
60 Correct 205 ms 128632 KB Output is correct

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 125560 KB Output is correct
2 Correct 76 ms 125560 KB Output is correct
3 Correct 72 ms 125560 KB Output is correct
4 Correct 68 ms 125572 KB Output is correct
5 Correct 71 ms 125564 KB Output is correct
6 Correct 71 ms 125560 KB Output is correct
7 Correct 70 ms 125688 KB Output is correct
8 Correct 74 ms 125560 KB Output is correct
9 Correct 67 ms 125560 KB Output is correct
10 Correct 69 ms 125560 KB Output is correct
11 Correct 70 ms 125560 KB Output is correct
12 Correct 70 ms 125688 KB Output is correct
13 Correct 75 ms 125564 KB Output is correct
14 Correct 72 ms 125560 KB Output is correct
15 Correct 71 ms 125560 KB Output is correct
16 Correct 70 ms 125560 KB Output is correct
17 Correct 74 ms 125660 KB Output is correct
18 Correct 76 ms 125560 KB Output is correct
19 Correct 68 ms 125560 KB Output is correct
20 Correct 68 ms 125560 KB Output is correct
21 Correct 72 ms 125672 KB Output is correct
22 Correct 71 ms 125688 KB Output is correct
23 Correct 69 ms 125560 KB Output is correct
24 Correct 72 ms 125560 KB Output is correct
25 Correct 69 ms 125688 KB Output is correct
26 Correct 70 ms 125560 KB Output is correct
27 Correct 69 ms 125816 KB Output is correct
28 Correct 68 ms 125540 KB Output is correct
29 Correct 70 ms 125560 KB Output is correct
30 Correct 69 ms 125560 KB Output is correct
31 Correct 74 ms 125816 KB Output is correct
32 Correct 75 ms 125688 KB Output is correct
33 Correct 75 ms 125692 KB Output is correct
34 Correct 72 ms 125692 KB Output is correct
35 Correct 81 ms 125688 KB Output is correct
36 Correct 73 ms 125688 KB Output is correct
37 Correct 71 ms 125688 KB Output is correct
38 Correct 71 ms 125688 KB Output is correct
39 Correct 73 ms 125688 KB Output is correct
40 Correct 72 ms 125688 KB Output is correct
41 Correct 73 ms 125688 KB Output is correct
42 Correct 71 ms 125688 KB Output is correct
43 Correct 71 ms 125688 KB Output is correct
44 Correct 71 ms 125688 KB Output is correct
45 Correct 72 ms 125688 KB Output is correct
46 Correct 161 ms 128504 KB Output is correct
47 Correct 186 ms 128632 KB Output is correct
48 Correct 200 ms 128508 KB Output is correct
49 Correct 216 ms 128504 KB Output is correct
50 Correct 243 ms 128508 KB Output is correct
51 Correct 188 ms 128632 KB Output is correct
52 Correct 135 ms 127096 KB Output is correct
53 Correct 114 ms 126712 KB Output is correct
54 Correct 170 ms 128504 KB Output is correct
55 Correct 205 ms 128504 KB Output is correct
56 Correct 210 ms 128504 KB Output is correct
57 Correct 188 ms 128504 KB Output is correct
58 Correct 205 ms 128504 KB Output is correct
59 Correct 213 ms 128504 KB Output is correct
60 Correct 205 ms 128632 KB Output is correct
61 Correct 509 ms 139384 KB Output is correct
62 Correct 606 ms 139420 KB Output is correct
63 Correct 645 ms 139512 KB Output is correct
64 Runtime error 624 ms 262144 KB Execution killed with signal 11 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -