oj.uz

Submission #231378

# Submission time Handle Problem Language Result Execution time Memory
231378 2020-05-13T13:15:37 Z maskoff Bigger segments (IZhO19_segments) C++14
73 / 100
 786 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 + 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 + 1);
  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++) {
  	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 61 ms 125564 KB Output is correct
2 Correct 62 ms 125560 KB Output is correct
3 Correct 62 ms 125564 KB Output is correct
4 Correct 63 ms 125688 KB Output is correct
5 Correct 62 ms 125688 KB Output is correct
6 Correct 65 ms 125560 KB Output is correct
7 Correct 62 ms 125816 KB Output is correct
8 Correct 62 ms 125688 KB Output is correct
9 Correct 72 ms 125560 KB Output is correct
10 Correct 65 ms 125560 KB Output is correct
11 Correct 63 ms 125560 KB Output is correct
12 Correct 64 ms 125560 KB Output is correct
13 Correct 62 ms 125560 KB Output is correct
14 Correct 62 ms 125688 KB Output is correct
15 Correct 63 ms 125560 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 125564 KB Output is correct
2 Correct 62 ms 125560 KB Output is correct
3 Correct 62 ms 125564 KB Output is correct
4 Correct 63 ms 125688 KB Output is correct
5 Correct 62 ms 125688 KB Output is correct
6 Correct 65 ms 125560 KB Output is correct
7 Correct 62 ms 125816 KB Output is correct
8 Correct 62 ms 125688 KB Output is correct
9 Correct 72 ms 125560 KB Output is correct
10 Correct 65 ms 125560 KB Output is correct
11 Correct 63 ms 125560 KB Output is correct
12 Correct 64 ms 125560 KB Output is correct
13 Correct 62 ms 125560 KB Output is correct
14 Correct 62 ms 125688 KB Output is correct
15 Correct 63 ms 125560 KB Output is correct
16 Correct 64 ms 125688 KB Output is correct
17 Correct 65 ms 125688 KB Output is correct
18 Correct 63 ms 125688 KB Output is correct
19 Correct 64 ms 125688 KB Output is correct
20 Correct 66 ms 125688 KB Output is correct
21 Correct 65 ms 125816 KB Output is correct
22 Correct 63 ms 125688 KB Output is correct
23 Correct 65 ms 125688 KB Output is correct
24 Correct 65 ms 125560 KB Output is correct
25 Correct 65 ms 125688 KB Output is correct
26 Correct 65 ms 125688 KB Output is correct
27 Correct 64 ms 125560 KB Output is correct
28 Correct 63 ms 125564 KB Output is correct
29 Correct 63 ms 125688 KB Output is correct
30 Correct 63 ms 125688 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 125564 KB Output is correct
2 Correct 62 ms 125560 KB Output is correct
3 Correct 62 ms 125564 KB Output is correct
4 Correct 63 ms 125688 KB Output is correct
5 Correct 62 ms 125688 KB Output is correct
6 Correct 65 ms 125560 KB Output is correct
7 Correct 62 ms 125816 KB Output is correct
8 Correct 62 ms 125688 KB Output is correct
9 Correct 72 ms 125560 KB Output is correct
10 Correct 65 ms 125560 KB Output is correct
11 Correct 63 ms 125560 KB Output is correct
12 Correct 64 ms 125560 KB Output is correct
13 Correct 62 ms 125560 KB Output is correct
14 Correct 62 ms 125688 KB Output is correct
15 Correct 63 ms 125560 KB Output is correct
16 Correct 64 ms 125688 KB Output is correct
17 Correct 65 ms 125688 KB Output is correct
18 Correct 63 ms 125688 KB Output is correct
19 Correct 64 ms 125688 KB Output is correct
20 Correct 66 ms 125688 KB Output is correct
21 Correct 65 ms 125816 KB Output is correct
22 Correct 63 ms 125688 KB Output is correct
23 Correct 65 ms 125688 KB Output is correct
24 Correct 65 ms 125560 KB Output is correct
25 Correct 65 ms 125688 KB Output is correct
26 Correct 65 ms 125688 KB Output is correct
27 Correct 64 ms 125560 KB Output is correct
28 Correct 63 ms 125564 KB Output is correct
29 Correct 63 ms 125688 KB Output is correct
30 Correct 63 ms 125688 KB Output is correct
31 Correct 65 ms 126072 KB Output is correct
32 Correct 68 ms 126200 KB Output is correct
33 Correct 67 ms 126328 KB Output is correct
34 Correct 67 ms 126200 KB Output is correct
35 Correct 68 ms 126332 KB Output is correct
36 Correct 68 ms 126456 KB Output is correct
37 Correct 65 ms 126200 KB Output is correct
38 Correct 66 ms 126072 KB Output is correct
39 Correct 70 ms 125816 KB Output is correct
40 Correct 69 ms 126328 KB Output is correct
41 Correct 66 ms 125816 KB Output is correct
42 Correct 68 ms 125944 KB Output is correct
43 Correct 68 ms 125816 KB Output is correct
44 Correct 66 ms 125944 KB Output is correct
45 Correct 67 ms 126072 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 125564 KB Output is correct
2 Correct 62 ms 125560 KB Output is correct
3 Correct 62 ms 125564 KB Output is correct
4 Correct 63 ms 125688 KB Output is correct
5 Correct 62 ms 125688 KB Output is correct
6 Correct 65 ms 125560 KB Output is correct
7 Correct 62 ms 125816 KB Output is correct
8 Correct 62 ms 125688 KB Output is correct
9 Correct 72 ms 125560 KB Output is correct
10 Correct 65 ms 125560 KB Output is correct
11 Correct 63 ms 125560 KB Output is correct
12 Correct 64 ms 125560 KB Output is correct
13 Correct 62 ms 125560 KB Output is correct
14 Correct 62 ms 125688 KB Output is correct
15 Correct 63 ms 125560 KB Output is correct
16 Correct 64 ms 125688 KB Output is correct
17 Correct 65 ms 125688 KB Output is correct
18 Correct 63 ms 125688 KB Output is correct
19 Correct 64 ms 125688 KB Output is correct
20 Correct 66 ms 125688 KB Output is correct
21 Correct 65 ms 125816 KB Output is correct
22 Correct 63 ms 125688 KB Output is correct
23 Correct 65 ms 125688 KB Output is correct
24 Correct 65 ms 125560 KB Output is correct
25 Correct 65 ms 125688 KB Output is correct
26 Correct 65 ms 125688 KB Output is correct
27 Correct 64 ms 125560 KB Output is correct
28 Correct 63 ms 125564 KB Output is correct
29 Correct 63 ms 125688 KB Output is correct
30 Correct 63 ms 125688 KB Output is correct
31 Correct 65 ms 126072 KB Output is correct
32 Correct 68 ms 126200 KB Output is correct
33 Correct 67 ms 126328 KB Output is correct
34 Correct 67 ms 126200 KB Output is correct
35 Correct 68 ms 126332 KB Output is correct
36 Correct 68 ms 126456 KB Output is correct
37 Correct 65 ms 126200 KB Output is correct
38 Correct 66 ms 126072 KB Output is correct
39 Correct 70 ms 125816 KB Output is correct
40 Correct 69 ms 126328 KB Output is correct
41 Correct 66 ms 125816 KB Output is correct
42 Correct 68 ms 125944 KB Output is correct
43 Correct 68 ms 125816 KB Output is correct
44 Correct 66 ms 125944 KB Output is correct
45 Correct 67 ms 126072 KB Output is correct
46 Correct 166 ms 136956 KB Output is correct
47 Correct 197 ms 138104 KB Output is correct
48 Correct 220 ms 148472 KB Output is correct
49 Correct 223 ms 150008 KB Output is correct
50 Correct 259 ms 152440 KB Output is correct
51 Correct 211 ms 152056 KB Output is correct
52 Correct 140 ms 138744 KB Output is correct
53 Correct 115 ms 133528 KB Output is correct
54 Correct 175 ms 131192 KB Output is correct
55 Correct 233 ms 151160 KB Output is correct
56 Correct 210 ms 138744 KB Output is correct
57 Correct 197 ms 136824 KB Output is correct
58 Correct 200 ms 137592 KB Output is correct
59 Correct 230 ms 141816 KB Output is correct
60 Correct 225 ms 141688 KB Output is correct

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 125564 KB Output is correct
2 Correct 62 ms 125560 KB Output is correct
3 Correct 62 ms 125564 KB Output is correct
4 Correct 63 ms 125688 KB Output is correct
5 Correct 62 ms 125688 KB Output is correct
6 Correct 65 ms 125560 KB Output is correct
7 Correct 62 ms 125816 KB Output is correct
8 Correct 62 ms 125688 KB Output is correct
9 Correct 72 ms 125560 KB Output is correct
10 Correct 65 ms 125560 KB Output is correct
11 Correct 63 ms 125560 KB Output is correct
12 Correct 64 ms 125560 KB Output is correct
13 Correct 62 ms 125560 KB Output is correct
14 Correct 62 ms 125688 KB Output is correct
15 Correct 63 ms 125560 KB Output is correct
16 Correct 64 ms 125688 KB Output is correct
17 Correct 65 ms 125688 KB Output is correct
18 Correct 63 ms 125688 KB Output is correct
19 Correct 64 ms 125688 KB Output is correct
20 Correct 66 ms 125688 KB Output is correct
21 Correct 65 ms 125816 KB Output is correct
22 Correct 63 ms 125688 KB Output is correct
23 Correct 65 ms 125688 KB Output is correct
24 Correct 65 ms 125560 KB Output is correct
25 Correct 65 ms 125688 KB Output is correct
26 Correct 65 ms 125688 KB Output is correct
27 Correct 64 ms 125560 KB Output is correct
28 Correct 63 ms 125564 KB Output is correct
29 Correct 63 ms 125688 KB Output is correct
30 Correct 63 ms 125688 KB Output is correct
31 Correct 65 ms 126072 KB Output is correct
32 Correct 68 ms 126200 KB Output is correct
33 Correct 67 ms 126328 KB Output is correct
34 Correct 67 ms 126200 KB Output is correct
35 Correct 68 ms 126332 KB Output is correct
36 Correct 68 ms 126456 KB Output is correct
37 Correct 65 ms 126200 KB Output is correct
38 Correct 66 ms 126072 KB Output is correct
39 Correct 70 ms 125816 KB Output is correct
40 Correct 69 ms 126328 KB Output is correct
41 Correct 66 ms 125816 KB Output is correct
42 Correct 68 ms 125944 KB Output is correct
43 Correct 68 ms 125816 KB Output is correct
44 Correct 66 ms 125944 KB Output is correct
45 Correct 67 ms 126072 KB Output is correct
46 Correct 166 ms 136956 KB Output is correct
47 Correct 197 ms 138104 KB Output is correct
48 Correct 220 ms 148472 KB Output is correct
49 Correct 223 ms 150008 KB Output is correct
50 Correct 259 ms 152440 KB Output is correct
51 Correct 211 ms 152056 KB Output is correct
52 Correct 140 ms 138744 KB Output is correct
53 Correct 115 ms 133528 KB Output is correct
54 Correct 175 ms 131192 KB Output is correct
55 Correct 233 ms 151160 KB Output is correct
56 Correct 210 ms 138744 KB Output is correct
57 Correct 197 ms 136824 KB Output is correct
58 Correct 200 ms 137592 KB Output is correct
59 Correct 230 ms 141816 KB Output is correct
60 Correct 225 ms 141688 KB Output is correct
61 Correct 578 ms 179064 KB Output is correct
62 Correct 628 ms 177404 KB Output is correct
63 Correct 739 ms 188540 KB Output is correct
64 Runtime error 786 ms 262144 KB Execution killed with signal 11 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -