oj.uz

Submission #231364

# Submission time Handle Problem Language Result Execution time Memory
231364 2020-05-13T12:38:04 Z maskoff Bigger segments (IZhO19_segments) C++14
73 / 100
 814 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 = 1e18;
const int MOD = 1e9 + 7;
                                          
const int dx[] = {+1, -1, 0, 0};
const int dy[] = {0, 0, +1, -1};

int const N = 2e6 + 5;

vector<pll> t(4 * N); 
int L[4 * N], R[4 * N];
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

# Verdict Execution time Memory Grader output
1 Correct 66 ms 125564 KB Output is correct
2 Correct 65 ms 125532 KB Output is correct
3 Correct 64 ms 125564 KB Output is correct
4 Correct 65 ms 125560 KB Output is correct
5 Correct 66 ms 125688 KB Output is correct
6 Correct 65 ms 125688 KB Output is correct
7 Correct 64 ms 125560 KB Output is correct
8 Correct 65 ms 125552 KB Output is correct
9 Correct 64 ms 125564 KB Output is correct
10 Correct 67 ms 125688 KB Output is correct
11 Correct 64 ms 125560 KB Output is correct
12 Correct 65 ms 125560 KB Output is correct
13 Correct 64 ms 125560 KB Output is correct
14 Correct 65 ms 125560 KB Output is correct
15 Correct 66 ms 125540 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 125564 KB Output is correct
2 Correct 65 ms 125532 KB Output is correct
3 Correct 64 ms 125564 KB Output is correct
4 Correct 65 ms 125560 KB Output is correct
5 Correct 66 ms 125688 KB Output is correct
6 Correct 65 ms 125688 KB Output is correct
7 Correct 64 ms 125560 KB Output is correct
8 Correct 65 ms 125552 KB Output is correct
9 Correct 64 ms 125564 KB Output is correct
10 Correct 67 ms 125688 KB Output is correct
11 Correct 64 ms 125560 KB Output is correct
12 Correct 65 ms 125560 KB Output is correct
13 Correct 64 ms 125560 KB Output is correct
14 Correct 65 ms 125560 KB Output is correct
15 Correct 66 ms 125540 KB Output is correct
16 Correct 65 ms 125688 KB Output is correct
17 Correct 64 ms 125688 KB Output is correct
18 Correct 64 ms 125688 KB Output is correct
19 Correct 68 ms 125668 KB Output is correct
20 Correct 65 ms 125688 KB Output is correct
21 Correct 67 ms 125688 KB Output is correct
22 Correct 65 ms 125688 KB Output is correct
23 Correct 67 ms 125688 KB Output is correct
24 Correct 64 ms 125564 KB Output is correct
25 Correct 64 ms 125688 KB Output is correct
26 Correct 65 ms 125564 KB Output is correct
27 Correct 66 ms 125688 KB Output is correct
28 Correct 66 ms 125560 KB Output is correct
29 Correct 65 ms 125688 KB Output is correct
30 Correct 67 ms 125688 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 125564 KB Output is correct
2 Correct 65 ms 125532 KB Output is correct
3 Correct 64 ms 125564 KB Output is correct
4 Correct 65 ms 125560 KB Output is correct
5 Correct 66 ms 125688 KB Output is correct
6 Correct 65 ms 125688 KB Output is correct
7 Correct 64 ms 125560 KB Output is correct
8 Correct 65 ms 125552 KB Output is correct
9 Correct 64 ms 125564 KB Output is correct
10 Correct 67 ms 125688 KB Output is correct
11 Correct 64 ms 125560 KB Output is correct
12 Correct 65 ms 125560 KB Output is correct
13 Correct 64 ms 125560 KB Output is correct
14 Correct 65 ms 125560 KB Output is correct
15 Correct 66 ms 125540 KB Output is correct
16 Correct 65 ms 125688 KB Output is correct
17 Correct 64 ms 125688 KB Output is correct
18 Correct 64 ms 125688 KB Output is correct
19 Correct 68 ms 125668 KB Output is correct
20 Correct 65 ms 125688 KB Output is correct
21 Correct 67 ms 125688 KB Output is correct
22 Correct 65 ms 125688 KB Output is correct
23 Correct 67 ms 125688 KB Output is correct
24 Correct 64 ms 125564 KB Output is correct
25 Correct 64 ms 125688 KB Output is correct
26 Correct 65 ms 125564 KB Output is correct
27 Correct 66 ms 125688 KB Output is correct
28 Correct 66 ms 125560 KB Output is correct
29 Correct 65 ms 125688 KB Output is correct
30 Correct 67 ms 125688 KB Output is correct
31 Correct 67 ms 126072 KB Output is correct
32 Correct 67 ms 126200 KB Output is correct
33 Correct 68 ms 126328 KB Output is correct
34 Correct 69 ms 126332 KB Output is correct
35 Correct 70 ms 126456 KB Output is correct
36 Correct 70 ms 126332 KB Output is correct
37 Correct 68 ms 126328 KB Output is correct
38 Correct 68 ms 126076 KB Output is correct
39 Correct 68 ms 125816 KB Output is correct
40 Correct 70 ms 126328 KB Output is correct
41 Correct 69 ms 125816 KB Output is correct
42 Correct 71 ms 125944 KB Output is correct
43 Correct 69 ms 125816 KB Output is correct
44 Correct 69 ms 125944 KB Output is correct
45 Correct 68 ms 125944 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 125564 KB Output is correct
2 Correct 65 ms 125532 KB Output is correct
3 Correct 64 ms 125564 KB Output is correct
4 Correct 65 ms 125560 KB Output is correct
5 Correct 66 ms 125688 KB Output is correct
6 Correct 65 ms 125688 KB Output is correct
7 Correct 64 ms 125560 KB Output is correct
8 Correct 65 ms 125552 KB Output is correct
9 Correct 64 ms 125564 KB Output is correct
10 Correct 67 ms 125688 KB Output is correct
11 Correct 64 ms 125560 KB Output is correct
12 Correct 65 ms 125560 KB Output is correct
13 Correct 64 ms 125560 KB Output is correct
14 Correct 65 ms 125560 KB Output is correct
15 Correct 66 ms 125540 KB Output is correct
16 Correct 65 ms 125688 KB Output is correct
17 Correct 64 ms 125688 KB Output is correct
18 Correct 64 ms 125688 KB Output is correct
19 Correct 68 ms 125668 KB Output is correct
20 Correct 65 ms 125688 KB Output is correct
21 Correct 67 ms 125688 KB Output is correct
22 Correct 65 ms 125688 KB Output is correct
23 Correct 67 ms 125688 KB Output is correct
24 Correct 64 ms 125564 KB Output is correct
25 Correct 64 ms 125688 KB Output is correct
26 Correct 65 ms 125564 KB Output is correct
27 Correct 66 ms 125688 KB Output is correct
28 Correct 66 ms 125560 KB Output is correct
29 Correct 65 ms 125688 KB Output is correct
30 Correct 67 ms 125688 KB Output is correct
31 Correct 67 ms 126072 KB Output is correct
32 Correct 67 ms 126200 KB Output is correct
33 Correct 68 ms 126328 KB Output is correct
34 Correct 69 ms 126332 KB Output is correct
35 Correct 70 ms 126456 KB Output is correct
36 Correct 70 ms 126332 KB Output is correct
37 Correct 68 ms 126328 KB Output is correct
38 Correct 68 ms 126076 KB Output is correct
39 Correct 68 ms 125816 KB Output is correct
40 Correct 70 ms 126328 KB Output is correct
41 Correct 69 ms 125816 KB Output is correct
42 Correct 71 ms 125944 KB Output is correct
43 Correct 69 ms 125816 KB Output is correct
44 Correct 69 ms 125944 KB Output is correct
45 Correct 68 ms 125944 KB Output is correct
46 Correct 168 ms 137336 KB Output is correct
47 Correct 196 ms 138616 KB Output is correct
48 Correct 214 ms 148856 KB Output is correct
49 Correct 229 ms 150392 KB Output is correct
50 Correct 263 ms 152824 KB Output is correct
51 Correct 217 ms 152440 KB Output is correct
52 Correct 143 ms 139128 KB Output is correct
53 Correct 107 ms 133624 KB Output is correct
54 Correct 183 ms 131704 KB Output is correct
55 Correct 237 ms 151544 KB Output is correct
56 Correct 215 ms 139128 KB Output is correct
57 Correct 205 ms 137336 KB Output is correct
58 Correct 213 ms 137976 KB Output is correct
59 Correct 229 ms 142200 KB Output is correct
60 Correct 225 ms 142072 KB Output is correct

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 125564 KB Output is correct
2 Correct 65 ms 125532 KB Output is correct
3 Correct 64 ms 125564 KB Output is correct
4 Correct 65 ms 125560 KB Output is correct
5 Correct 66 ms 125688 KB Output is correct
6 Correct 65 ms 125688 KB Output is correct
7 Correct 64 ms 125560 KB Output is correct
8 Correct 65 ms 125552 KB Output is correct
9 Correct 64 ms 125564 KB Output is correct
10 Correct 67 ms 125688 KB Output is correct
11 Correct 64 ms 125560 KB Output is correct
12 Correct 65 ms 125560 KB Output is correct
13 Correct 64 ms 125560 KB Output is correct
14 Correct 65 ms 125560 KB Output is correct
15 Correct 66 ms 125540 KB Output is correct
16 Correct 65 ms 125688 KB Output is correct
17 Correct 64 ms 125688 KB Output is correct
18 Correct 64 ms 125688 KB Output is correct
19 Correct 68 ms 125668 KB Output is correct
20 Correct 65 ms 125688 KB Output is correct
21 Correct 67 ms 125688 KB Output is correct
22 Correct 65 ms 125688 KB Output is correct
23 Correct 67 ms 125688 KB Output is correct
24 Correct 64 ms 125564 KB Output is correct
25 Correct 64 ms 125688 KB Output is correct
26 Correct 65 ms 125564 KB Output is correct
27 Correct 66 ms 125688 KB Output is correct
28 Correct 66 ms 125560 KB Output is correct
29 Correct 65 ms 125688 KB Output is correct
30 Correct 67 ms 125688 KB Output is correct
31 Correct 67 ms 126072 KB Output is correct
32 Correct 67 ms 126200 KB Output is correct
33 Correct 68 ms 126328 KB Output is correct
34 Correct 69 ms 126332 KB Output is correct
35 Correct 70 ms 126456 KB Output is correct
36 Correct 70 ms 126332 KB Output is correct
37 Correct 68 ms 126328 KB Output is correct
38 Correct 68 ms 126076 KB Output is correct
39 Correct 68 ms 125816 KB Output is correct
40 Correct 70 ms 126328 KB Output is correct
41 Correct 69 ms 125816 KB Output is correct
42 Correct 71 ms 125944 KB Output is correct
43 Correct 69 ms 125816 KB Output is correct
44 Correct 69 ms 125944 KB Output is correct
45 Correct 68 ms 125944 KB Output is correct
46 Correct 168 ms 137336 KB Output is correct
47 Correct 196 ms 138616 KB Output is correct
48 Correct 214 ms 148856 KB Output is correct
49 Correct 229 ms 150392 KB Output is correct
50 Correct 263 ms 152824 KB Output is correct
51 Correct 217 ms 152440 KB Output is correct
52 Correct 143 ms 139128 KB Output is correct
53 Correct 107 ms 133624 KB Output is correct
54 Correct 183 ms 131704 KB Output is correct
55 Correct 237 ms 151544 KB Output is correct
56 Correct 215 ms 139128 KB Output is correct
57 Correct 205 ms 137336 KB Output is correct
58 Correct 213 ms 137976 KB Output is correct
59 Correct 229 ms 142200 KB Output is correct
60 Correct 225 ms 142072 KB Output is correct
61 Correct 600 ms 181068 KB Output is correct
62 Correct 638 ms 179576 KB Output is correct
63 Correct 753 ms 190584 KB Output is correct
64 Runtime error 814 ms 262144 KB Execution killed with signal 11 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -