oj.uz

Submission #652954

# Submission time Handle Problem Language Result Execution time Memory
652954 2022-10-25T09:32:39 Z KiriLL1ca Bigger segments (IZhO19_segments) C++14
100 / 100
 129 ms 26700 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define fr first
#define sc second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define pw(x) (1ll << x)
#define sz(x) (int)((x).size())
#define pb push_back
#define endl '\n'
#define mp make_pair
#define vec vector

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
typedef unsigned long long ull;

template <typename T> inline bool umin (T &a, const T &b) { if (a > b) { a = b; return 1; } return 0; }
template <typename T> inline bool umax (T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; }
template <typename T>
using oset = tree<T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;

struct st {
        int n; vector <ll> t;
        st (int n = 0) : n(n), t(4 * n, 1e18) {}
        inline void upd (int v, int tl, int tr, int pos, ll x) {
                if (tl == tr) { t[v] = x; return; }
                int tm = (tl + tr) >> 1;
                if (pos <= tm) upd(v << 1, tl, tm, pos, x);
                else upd(v << 1 | 1, tm + 1, tr, pos, x);
                t[v] = min(t[v << 1], t[v << 1 | 1]);
        }
        inline int get (int v, int tl, int tr, ll x) {
                if (tl == tr) return tl;
                int tm = (tl + tr) >> 1;
                if (t[v << 1 | 1] <= x) return get(v << 1 | 1, tm + 1, tr, x);
                else return get(v << 1, tl, tm, x);
        }
        inline ll getp (int v, int tl, int tr, int pos) {
                if (tl == tr) return t[v];
                int tm = (tl + tr) >> 1;
                if (pos <= tm) return getp(v << 1, tl, tm, pos);
                else return getp(v << 1 | 1, tm + 1, tr, pos);
        }

        inline void upd (int pos, ll x) { upd(1, 0, n - 1, pos, x); }
        inline int get (ll x) { return get(1, 0, n - 1, x); }
        inline ll getp (int i) { return getp(1, 0, n - 1, i); }
};

inline void solve () {
        int n; cin >> n;
        st s (n + 1); s.upd(0, 0);
        ll sum = 0;
        vector <int> dp (n + 1); dp[0] = 0;
        vector <ll> pref (n + 1);
        for (int i = 1; i <= n; ++i) {
                int x; cin >> x; sum += x;
                int p = s.get(sum);
                dp[i] = dp[p] + 1; pref[i] = sum;
                s.upd(i, sum * 2 - pref[p]);
        }
        cout << dp[n];
}

signed main() {
        ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
        #ifdef LOCAL
                freopen("input.txt", "r", stdin);
                freopen("output.txt", "w", stdout);
        #endif
        int t = 1; // cin >> t;
        while (t--) solve();
        return 0;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 268 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 320 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 320 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 320 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 268 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 320 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 320 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 320 KB Output is correct
31 Correct 1 ms 320 KB Output is correct
32 Correct 2 ms 460 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 2 ms 476 KB Output is correct
36 Correct 2 ms 456 KB Output is correct
37 Correct 2 ms 452 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 2 ms 452 KB Output is correct
40 Correct 2 ms 468 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 2 ms 392 KB Output is correct
43 Correct 2 ms 452 KB Output is correct
44 Correct 1 ms 456 KB Output is correct
45 Correct 1 ms 460 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 268 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 320 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 320 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 320 KB Output is correct
31 Correct 1 ms 320 KB Output is correct
32 Correct 2 ms 460 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 2 ms 476 KB Output is correct
36 Correct 2 ms 456 KB Output is correct
37 Correct 2 ms 452 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 2 ms 452 KB Output is correct
40 Correct 2 ms 468 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 2 ms 392 KB Output is correct
43 Correct 2 ms 452 KB Output is correct
44 Correct 1 ms 456 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 19 ms 4944 KB Output is correct
47 Correct 23 ms 5068 KB Output is correct
48 Correct 21 ms 5400 KB Output is correct
49 Correct 26 ms 5516 KB Output is correct
50 Correct 25 ms 5520 KB Output is correct
51 Correct 25 ms 5588 KB Output is correct
52 Correct 12 ms 2860 KB Output is correct
53 Correct 8 ms 1868 KB Output is correct
54 Correct 19 ms 4820 KB Output is correct
55 Correct 24 ms 5524 KB Output is correct
56 Correct 21 ms 5076 KB Output is correct
57 Correct 21 ms 4948 KB Output is correct
58 Correct 20 ms 5020 KB Output is correct
59 Correct 21 ms 5204 KB Output is correct
60 Correct 24 ms 5132 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 268 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 320 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 320 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 320 KB Output is correct
31 Correct 1 ms 320 KB Output is correct
32 Correct 2 ms 460 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 2 ms 476 KB Output is correct
36 Correct 2 ms 456 KB Output is correct
37 Correct 2 ms 452 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 2 ms 452 KB Output is correct
40 Correct 2 ms 468 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 2 ms 392 KB Output is correct
43 Correct 2 ms 452 KB Output is correct
44 Correct 1 ms 456 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 19 ms 4944 KB Output is correct
47 Correct 23 ms 5068 KB Output is correct
48 Correct 21 ms 5400 KB Output is correct
49 Correct 26 ms 5516 KB Output is correct
50 Correct 25 ms 5520 KB Output is correct
51 Correct 25 ms 5588 KB Output is correct
52 Correct 12 ms 2860 KB Output is correct
53 Correct 8 ms 1868 KB Output is correct
54 Correct 19 ms 4820 KB Output is correct
55 Correct 24 ms 5524 KB Output is correct
56 Correct 21 ms 5076 KB Output is correct
57 Correct 21 ms 4948 KB Output is correct
58 Correct 20 ms 5020 KB Output is correct
59 Correct 21 ms 5204 KB Output is correct
60 Correct 24 ms 5132 KB Output is correct
61 Correct 89 ms 23756 KB Output is correct
62 Correct 98 ms 23808 KB Output is correct
63 Correct 106 ms 24136 KB Output is correct
64 Correct 114 ms 26324 KB Output is correct
65 Correct 126 ms 26700 KB Output is correct
66 Correct 125 ms 26572 KB Output is correct
67 Correct 99 ms 21372 KB Output is correct
68 Correct 49 ms 10836 KB Output is correct
69 Correct 96 ms 22988 KB Output is correct
70 Correct 129 ms 26700 KB Output is correct
71 Correct 120 ms 23756 KB Output is correct
72 Correct 101 ms 24188 KB Output is correct
73 Correct 105 ms 24780 KB Output is correct
74 Correct 108 ms 25032 KB Output is correct
75 Correct 108 ms 25164 KB Output is correct