oj.uz

Submission #231362

# Submission time Handle Problem Language Result Execution time Memory
231362 2020-05-13T12:37:11 Z maskoff Bigger segments (IZhO19_segments) C++14
73 / 100
 729 ms 262148 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 = 3e6 + 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 93 ms 188152 KB Output is correct
2 Correct 97 ms 188152 KB Output is correct
3 Correct 96 ms 188408 KB Output is correct
4 Correct 93 ms 188280 KB Output is correct
5 Correct 96 ms 188280 KB Output is correct
6 Correct 94 ms 188152 KB Output is correct
7 Correct 93 ms 188152 KB Output is correct
8 Correct 104 ms 188208 KB Output is correct
9 Correct 95 ms 188200 KB Output is correct
10 Correct 94 ms 188284 KB Output is correct
11 Correct 98 ms 188280 KB Output is correct
12 Correct 97 ms 188152 KB Output is correct
13 Correct 103 ms 188280 KB Output is correct
14 Correct 98 ms 188256 KB Output is correct
15 Correct 108 ms 188152 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 188152 KB Output is correct
2 Correct 97 ms 188152 KB Output is correct
3 Correct 96 ms 188408 KB Output is correct
4 Correct 93 ms 188280 KB Output is correct
5 Correct 96 ms 188280 KB Output is correct
6 Correct 94 ms 188152 KB Output is correct
7 Correct 93 ms 188152 KB Output is correct
8 Correct 104 ms 188208 KB Output is correct
9 Correct 95 ms 188200 KB Output is correct
10 Correct 94 ms 188284 KB Output is correct
11 Correct 98 ms 188280 KB Output is correct
12 Correct 97 ms 188152 KB Output is correct
13 Correct 103 ms 188280 KB Output is correct
14 Correct 98 ms 188256 KB Output is correct
15 Correct 108 ms 188152 KB Output is correct
16 Correct 98 ms 188304 KB Output is correct
17 Correct 105 ms 188384 KB Output is correct
18 Correct 99 ms 188384 KB Output is correct
19 Correct 99 ms 188384 KB Output is correct
20 Correct 99 ms 188384 KB Output is correct
21 Correct 96 ms 188384 KB Output is correct
22 Correct 98 ms 188364 KB Output is correct
23 Correct 100 ms 188368 KB Output is correct
24 Correct 100 ms 188280 KB Output is correct
25 Correct 109 ms 188280 KB Output is correct
26 Correct 96 ms 188276 KB Output is correct
27 Correct 99 ms 188256 KB Output is correct
28 Correct 99 ms 188280 KB Output is correct
29 Correct 101 ms 188200 KB Output is correct
30 Correct 97 ms 188248 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 188152 KB Output is correct
2 Correct 97 ms 188152 KB Output is correct
3 Correct 96 ms 188408 KB Output is correct
4 Correct 93 ms 188280 KB Output is correct
5 Correct 96 ms 188280 KB Output is correct
6 Correct 94 ms 188152 KB Output is correct
7 Correct 93 ms 188152 KB Output is correct
8 Correct 104 ms 188208 KB Output is correct
9 Correct 95 ms 188200 KB Output is correct
10 Correct 94 ms 188284 KB Output is correct
11 Correct 98 ms 188280 KB Output is correct
12 Correct 97 ms 188152 KB Output is correct
13 Correct 103 ms 188280 KB Output is correct
14 Correct 98 ms 188256 KB Output is correct
15 Correct 108 ms 188152 KB Output is correct
16 Correct 98 ms 188304 KB Output is correct
17 Correct 105 ms 188384 KB Output is correct
18 Correct 99 ms 188384 KB Output is correct
19 Correct 99 ms 188384 KB Output is correct
20 Correct 99 ms 188384 KB Output is correct
21 Correct 96 ms 188384 KB Output is correct
22 Correct 98 ms 188364 KB Output is correct
23 Correct 100 ms 188368 KB Output is correct
24 Correct 100 ms 188280 KB Output is correct
25 Correct 109 ms 188280 KB Output is correct
26 Correct 96 ms 188276 KB Output is correct
27 Correct 99 ms 188256 KB Output is correct
28 Correct 99 ms 188280 KB Output is correct
29 Correct 101 ms 188200 KB Output is correct
30 Correct 97 ms 188248 KB Output is correct
31 Correct 110 ms 188696 KB Output is correct
32 Correct 107 ms 188792 KB Output is correct
33 Correct 103 ms 188924 KB Output is correct
34 Correct 104 ms 188912 KB Output is correct
35 Correct 111 ms 189024 KB Output is correct
36 Correct 102 ms 189024 KB Output is correct
37 Correct 100 ms 188892 KB Output is correct
38 Correct 100 ms 188792 KB Output is correct
39 Correct 102 ms 188384 KB Output is correct
40 Correct 105 ms 189024 KB Output is correct
41 Correct 97 ms 188344 KB Output is correct
42 Correct 99 ms 188536 KB Output is correct
43 Correct 107 ms 188408 KB Output is correct
44 Correct 103 ms 188664 KB Output is correct
45 Correct 102 ms 188536 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 188152 KB Output is correct
2 Correct 97 ms 188152 KB Output is correct
3 Correct 96 ms 188408 KB Output is correct
4 Correct 93 ms 188280 KB Output is correct
5 Correct 96 ms 188280 KB Output is correct
6 Correct 94 ms 188152 KB Output is correct
7 Correct 93 ms 188152 KB Output is correct
8 Correct 104 ms 188208 KB Output is correct
9 Correct 95 ms 188200 KB Output is correct
10 Correct 94 ms 188284 KB Output is correct
11 Correct 98 ms 188280 KB Output is correct
12 Correct 97 ms 188152 KB Output is correct
13 Correct 103 ms 188280 KB Output is correct
14 Correct 98 ms 188256 KB Output is correct
15 Correct 108 ms 188152 KB Output is correct
16 Correct 98 ms 188304 KB Output is correct
17 Correct 105 ms 188384 KB Output is correct
18 Correct 99 ms 188384 KB Output is correct
19 Correct 99 ms 188384 KB Output is correct
20 Correct 99 ms 188384 KB Output is correct
21 Correct 96 ms 188384 KB Output is correct
22 Correct 98 ms 188364 KB Output is correct
23 Correct 100 ms 188368 KB Output is correct
24 Correct 100 ms 188280 KB Output is correct
25 Correct 109 ms 188280 KB Output is correct
26 Correct 96 ms 188276 KB Output is correct
27 Correct 99 ms 188256 KB Output is correct
28 Correct 99 ms 188280 KB Output is correct
29 Correct 101 ms 188200 KB Output is correct
30 Correct 97 ms 188248 KB Output is correct
31 Correct 110 ms 188696 KB Output is correct
32 Correct 107 ms 188792 KB Output is correct
33 Correct 103 ms 188924 KB Output is correct
34 Correct 104 ms 188912 KB Output is correct
35 Correct 111 ms 189024 KB Output is correct
36 Correct 102 ms 189024 KB Output is correct
37 Correct 100 ms 188892 KB Output is correct
38 Correct 100 ms 188792 KB Output is correct
39 Correct 102 ms 188384 KB Output is correct
40 Correct 105 ms 189024 KB Output is correct
41 Correct 97 ms 188344 KB Output is correct
42 Correct 99 ms 188536 KB Output is correct
43 Correct 107 ms 188408 KB Output is correct
44 Correct 103 ms 188664 KB Output is correct
45 Correct 102 ms 188536 KB Output is correct
46 Correct 250 ms 199924 KB Output is correct
47 Correct 248 ms 201596 KB Output is correct
48 Correct 259 ms 212300 KB Output is correct
49 Correct 275 ms 213152 KB Output is correct
50 Correct 309 ms 215640 KB Output is correct
51 Correct 253 ms 215160 KB Output is correct
52 Correct 177 ms 201720 KB Output is correct
53 Correct 146 ms 196396 KB Output is correct
54 Correct 202 ms 194424 KB Output is correct
55 Correct 275 ms 214392 KB Output is correct
56 Correct 253 ms 201720 KB Output is correct
57 Correct 242 ms 199928 KB Output is correct
58 Correct 244 ms 200824 KB Output is correct
59 Correct 259 ms 204920 KB Output is correct
60 Correct 238 ms 204920 KB Output is correct

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 188152 KB Output is correct
2 Correct 97 ms 188152 KB Output is correct
3 Correct 96 ms 188408 KB Output is correct
4 Correct 93 ms 188280 KB Output is correct
5 Correct 96 ms 188280 KB Output is correct
6 Correct 94 ms 188152 KB Output is correct
7 Correct 93 ms 188152 KB Output is correct
8 Correct 104 ms 188208 KB Output is correct
9 Correct 95 ms 188200 KB Output is correct
10 Correct 94 ms 188284 KB Output is correct
11 Correct 98 ms 188280 KB Output is correct
12 Correct 97 ms 188152 KB Output is correct
13 Correct 103 ms 188280 KB Output is correct
14 Correct 98 ms 188256 KB Output is correct
15 Correct 108 ms 188152 KB Output is correct
16 Correct 98 ms 188304 KB Output is correct
17 Correct 105 ms 188384 KB Output is correct
18 Correct 99 ms 188384 KB Output is correct
19 Correct 99 ms 188384 KB Output is correct
20 Correct 99 ms 188384 KB Output is correct
21 Correct 96 ms 188384 KB Output is correct
22 Correct 98 ms 188364 KB Output is correct
23 Correct 100 ms 188368 KB Output is correct
24 Correct 100 ms 188280 KB Output is correct
25 Correct 109 ms 188280 KB Output is correct
26 Correct 96 ms 188276 KB Output is correct
27 Correct 99 ms 188256 KB Output is correct
28 Correct 99 ms 188280 KB Output is correct
29 Correct 101 ms 188200 KB Output is correct
30 Correct 97 ms 188248 KB Output is correct
31 Correct 110 ms 188696 KB Output is correct
32 Correct 107 ms 188792 KB Output is correct
33 Correct 103 ms 188924 KB Output is correct
34 Correct 104 ms 188912 KB Output is correct
35 Correct 111 ms 189024 KB Output is correct
36 Correct 102 ms 189024 KB Output is correct
37 Correct 100 ms 188892 KB Output is correct
38 Correct 100 ms 188792 KB Output is correct
39 Correct 102 ms 188384 KB Output is correct
40 Correct 105 ms 189024 KB Output is correct
41 Correct 97 ms 188344 KB Output is correct
42 Correct 99 ms 188536 KB Output is correct
43 Correct 107 ms 188408 KB Output is correct
44 Correct 103 ms 188664 KB Output is correct
45 Correct 102 ms 188536 KB Output is correct
46 Correct 250 ms 199924 KB Output is correct
47 Correct 248 ms 201596 KB Output is correct
48 Correct 259 ms 212300 KB Output is correct
49 Correct 275 ms 213152 KB Output is correct
50 Correct 309 ms 215640 KB Output is correct
51 Correct 253 ms 215160 KB Output is correct
52 Correct 177 ms 201720 KB Output is correct
53 Correct 146 ms 196396 KB Output is correct
54 Correct 202 ms 194424 KB Output is correct
55 Correct 275 ms 214392 KB Output is correct
56 Correct 253 ms 201720 KB Output is correct
57 Correct 242 ms 199928 KB Output is correct
58 Correct 244 ms 200824 KB Output is correct
59 Correct 259 ms 204920 KB Output is correct
60 Correct 238 ms 204920 KB Output is correct
61 Correct 641 ms 243756 KB Output is correct
62 Correct 645 ms 244072 KB Output is correct
63 Correct 729 ms 255480 KB Output is correct
64 Runtime error 545 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -