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Submission #276480

# Submission time Handle Problem Language Result Execution time Memory
276480 2020-08-20T13:08:37 Z aZvezda Bigger segments (IZhO19_segments) C++14
73 / 100
 63 ms 4984 KB 
#include <bits/stdc++.h>
using namespace std;
#define endl "\n" // BRAT NASKO KUF E TOQ TRASH KOD
template<class T, class T2> bool chkmax(T &a, const T2 &b) {return (a < b) ? a = b, 1 : 0;}
typedef long long ll;

const ll MAX_N = 1e5 + 10;
ll arr[MAX_N];

ll tree[4 * MAX_N];

void upd(ll curr, ll l, ll r, ll ind, ll val) {
	if(l == r && l == ind) {
		chkmax(tree[curr], val);
		return;
	} else if(r < ind || l > ind) {return;}
	ll m = (l + r) / 2ll;
	upd(curr * 2, l, m, ind, val);
	upd(curr * 2 + 1, m + 1, r, ind, val);
	tree[curr] = max(tree[curr * 2], tree[curr * 2 + 1]);
}

ll ans(ll curr, ll l, ll r, ll ql, ll qr) {
	if(ql <= l && r <= qr) {
		return tree[curr];
	} else if(l > qr || r < ql) {
		return 0;
	}
	ll m = (l + r) / 2ll;
	return max(ans(curr * 2, l, m, ql, qr), ans(curr * 2 + 1, m + 1, r, ql, qr));
}

ll dp[MAX_N];

int main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	ll n;
	cin >> n;
	for(ll i = 1; i <= n; i ++) {
		cin >> arr[i];
		arr[i] += arr[i - 1];
	}
	for(ll i = 1; i <= n; i ++) {
		ll curr = ans(1, 0, n, 0, i);
		dp[i] = dp[curr] + 1;
		ll nowWeight = arr[i] * 2 - arr[curr];
		ll ind = lower_bound(arr + 1, arr + n + 1, nowWeight) - arr;
		upd(1, 0, n, ind, i);
	}
	cout << dp[n] << endl;
}
/*NASKO E GOLQM GEI*/

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 2 ms 544 KB Output is correct
33 Correct 2 ms 512 KB Output is correct
34 Correct 2 ms 512 KB Output is correct
35 Correct 3 ms 512 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 2 ms 512 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 416 KB Output is correct
43 Correct 2 ms 512 KB Output is correct
44 Correct 2 ms 512 KB Output is correct
45 Correct 3 ms 512 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 2 ms 544 KB Output is correct
33 Correct 2 ms 512 KB Output is correct
34 Correct 2 ms 512 KB Output is correct
35 Correct 3 ms 512 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 2 ms 512 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 416 KB Output is correct
43 Correct 2 ms 512 KB Output is correct
44 Correct 2 ms 512 KB Output is correct
45 Correct 3 ms 512 KB Output is correct
46 Correct 30 ms 2300 KB Output is correct
47 Correct 58 ms 4088 KB Output is correct
48 Correct 59 ms 4728 KB Output is correct
49 Correct 60 ms 4728 KB Output is correct
50 Correct 62 ms 4984 KB Output is correct
51 Correct 63 ms 4984 KB Output is correct
52 Correct 29 ms 2680 KB Output is correct
53 Correct 20 ms 1656 KB Output is correct
54 Correct 57 ms 4216 KB Output is correct
55 Correct 61 ms 4976 KB Output is correct
56 Correct 59 ms 4472 KB Output is correct
57 Correct 56 ms 3576 KB Output is correct
58 Correct 63 ms 4088 KB Output is correct
59 Correct 58 ms 4520 KB Output is correct
60 Correct 58 ms 4472 KB Output is correct

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 2 ms 544 KB Output is correct
33 Correct 2 ms 512 KB Output is correct
34 Correct 2 ms 512 KB Output is correct
35 Correct 3 ms 512 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 2 ms 512 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 416 KB Output is correct
43 Correct 2 ms 512 KB Output is correct
44 Correct 2 ms 512 KB Output is correct
45 Correct 3 ms 512 KB Output is correct
46 Correct 30 ms 2300 KB Output is correct
47 Correct 58 ms 4088 KB Output is correct
48 Correct 59 ms 4728 KB Output is correct
49 Correct 60 ms 4728 KB Output is correct
50 Correct 62 ms 4984 KB Output is correct
51 Correct 63 ms 4984 KB Output is correct
52 Correct 29 ms 2680 KB Output is correct
53 Correct 20 ms 1656 KB Output is correct
54 Correct 57 ms 4216 KB Output is correct
55 Correct 61 ms 4976 KB Output is correct
56 Correct 59 ms 4472 KB Output is correct
57 Correct 56 ms 3576 KB Output is correct
58 Correct 63 ms 4088 KB Output is correct
59 Correct 58 ms 4520 KB Output is correct
60 Correct 58 ms 4472 KB Output is correct
61 Runtime error 10 ms 2688 KB Execution killed with signal 11
62 Halted 0 ms 0 KB -