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Submission #1057720

# Submission time Handle Problem Language Result Execution time Memory
1057720 2024-08-14T04:05:49 Z vjudge1 Bigger segments (IZhO19_segments) C++17
73 / 100
 230 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
#define pb push_back
#define pf push_front
#define fi first
#define se second
const ll mod = 1e9+7, mxn = 5e5+7;
ll n, dp[mxn], opt[mxn], a[mxn];
struct dynamic_segment_tree
{
    struct node {ll v, l, r; node() {v = 0; l = -1, r = -1;}};
    vector<node> st;
    dynamic_segment_tree() {st.clear(); st.pb(node());};
    void update(ll id, ll l, ll r, ll i, ll x)
    {
        if (l == r) {st[id].v = max(st[id].v,x); return;}
        ll m = (r+l)>>1; st[id].v = max(st[id].v,x);
        if (l <= i && i <= m)
        {
            if (st[id].l == -1) {st[id].l = st.size(); st.pb(node());}
            update(st[id].l,l,m,i,x);
        }
        if (m < i && i <= r)
        {
            if (st[id].r == -1) {st[id].r = st.size(); st.pb(node());}
            update(st[id].r,m+1,r,i,x);
        }
    }
    ll get(ll id, ll l, ll r, ll u, ll v)
    {
        if (r < u || v < l) return 0;
        if (u <= l && r <= v) return st[id].v;
        ll m = (r+l)>>1, val = 0;
        if (st[id].l != -1) val = max(val,get(st[id].l,l,m,u,v));
        if (st[id].r != -1) val = max(val,get(st[id].r,m+1,r,u,v));
        return val;
    }
    void update(ll i, ll x) {update(0,0,1e17,i,x);}
    ll get(ll u, ll v) {return get(0,0,1e17,u,v);}
} st;
signed main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    // freopen("test.inp","r",stdin); freopen("test.out","w",stdout); freopen("test.err","w",stderr);
    cin >> n;
    for (ll i = 1; i <= n; i++)
    {
        cin >> a[i];
        a[i] += a[i-1];
    }
    for (ll i = 1; i <= n; i++)
    {
        ll opt_pos = st.get(0,a[i]);
        dp[i] = dp[opt_pos]+1;
        opt[i] = a[i]-a[opt_pos];
        st.update(opt[i]+a[i],i);
    }   
    cout << dp[n];
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2844 KB Output is correct
17 Correct 1 ms 2904 KB Output is correct
18 Correct 1 ms 2904 KB Output is correct
19 Correct 1 ms 2904 KB Output is correct
20 Correct 1 ms 2904 KB Output is correct
21 Correct 1 ms 2904 KB Output is correct
22 Correct 1 ms 2904 KB Output is correct
23 Correct 1 ms 2844 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2904 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 0 ms 2652 KB Output is correct
30 Correct 0 ms 2652 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2844 KB Output is correct
17 Correct 1 ms 2904 KB Output is correct
18 Correct 1 ms 2904 KB Output is correct
19 Correct 1 ms 2904 KB Output is correct
20 Correct 1 ms 2904 KB Output is correct
21 Correct 1 ms 2904 KB Output is correct
22 Correct 1 ms 2904 KB Output is correct
23 Correct 1 ms 2844 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2904 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 0 ms 2652 KB Output is correct
30 Correct 0 ms 2652 KB Output is correct
31 Correct 2 ms 4052 KB Output is correct
32 Correct 2 ms 4052 KB Output is correct
33 Correct 3 ms 5580 KB Output is correct
34 Correct 3 ms 5584 KB Output is correct
35 Correct 3 ms 6348 KB Output is correct
36 Correct 3 ms 6312 KB Output is correct
37 Correct 3 ms 6864 KB Output is correct
38 Correct 2 ms 4052 KB Output is correct
39 Correct 2 ms 3096 KB Output is correct
40 Correct 4 ms 5584 KB Output is correct
41 Correct 2 ms 3100 KB Output is correct
42 Correct 2 ms 3416 KB Output is correct
43 Correct 1 ms 3100 KB Output is correct
44 Correct 3 ms 4052 KB Output is correct
45 Correct 2 ms 4052 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2844 KB Output is correct
17 Correct 1 ms 2904 KB Output is correct
18 Correct 1 ms 2904 KB Output is correct
19 Correct 1 ms 2904 KB Output is correct
20 Correct 1 ms 2904 KB Output is correct
21 Correct 1 ms 2904 KB Output is correct
22 Correct 1 ms 2904 KB Output is correct
23 Correct 1 ms 2844 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2904 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 0 ms 2652 KB Output is correct
30 Correct 0 ms 2652 KB Output is correct
31 Correct 2 ms 4052 KB Output is correct
32 Correct 2 ms 4052 KB Output is correct
33 Correct 3 ms 5580 KB Output is correct
34 Correct 3 ms 5584 KB Output is correct
35 Correct 3 ms 6348 KB Output is correct
36 Correct 3 ms 6312 KB Output is correct
37 Correct 3 ms 6864 KB Output is correct
38 Correct 2 ms 4052 KB Output is correct
39 Correct 2 ms 3096 KB Output is correct
40 Correct 4 ms 5584 KB Output is correct
41 Correct 2 ms 3100 KB Output is correct
42 Correct 2 ms 3416 KB Output is correct
43 Correct 1 ms 3100 KB Output is correct
44 Correct 3 ms 4052 KB Output is correct
45 Correct 2 ms 4052 KB Output is correct
46 Correct 40 ms 59120 KB Output is correct
47 Correct 56 ms 60840 KB Output is correct
48 Correct 65 ms 108832 KB Output is correct
49 Correct 73 ms 109096 KB Output is correct
50 Correct 82 ms 108580 KB Output is correct
51 Correct 71 ms 108184 KB Output is correct
52 Correct 35 ms 55744 KB Output is correct
53 Correct 21 ms 31168 KB Output is correct
54 Correct 39 ms 20680 KB Output is correct
55 Correct 77 ms 109340 KB Output is correct
56 Correct 54 ms 61104 KB Output is correct
57 Correct 50 ms 60172 KB Output is correct
58 Correct 55 ms 60264 KB Output is correct
59 Correct 56 ms 57080 KB Output is correct
60 Correct 55 ms 58540 KB Output is correct

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2844 KB Output is correct
17 Correct 1 ms 2904 KB Output is correct
18 Correct 1 ms 2904 KB Output is correct
19 Correct 1 ms 2904 KB Output is correct
20 Correct 1 ms 2904 KB Output is correct
21 Correct 1 ms 2904 KB Output is correct
22 Correct 1 ms 2904 KB Output is correct
23 Correct 1 ms 2844 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2904 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 0 ms 2652 KB Output is correct
30 Correct 0 ms 2652 KB Output is correct
31 Correct 2 ms 4052 KB Output is correct
32 Correct 2 ms 4052 KB Output is correct
33 Correct 3 ms 5580 KB Output is correct
34 Correct 3 ms 5584 KB Output is correct
35 Correct 3 ms 6348 KB Output is correct
36 Correct 3 ms 6312 KB Output is correct
37 Correct 3 ms 6864 KB Output is correct
38 Correct 2 ms 4052 KB Output is correct
39 Correct 2 ms 3096 KB Output is correct
40 Correct 4 ms 5584 KB Output is correct
41 Correct 2 ms 3100 KB Output is correct
42 Correct 2 ms 3416 KB Output is correct
43 Correct 1 ms 3100 KB Output is correct
44 Correct 3 ms 4052 KB Output is correct
45 Correct 2 ms 4052 KB Output is correct
46 Correct 40 ms 59120 KB Output is correct
47 Correct 56 ms 60840 KB Output is correct
48 Correct 65 ms 108832 KB Output is correct
49 Correct 73 ms 109096 KB Output is correct
50 Correct 82 ms 108580 KB Output is correct
51 Correct 71 ms 108184 KB Output is correct
52 Correct 35 ms 55744 KB Output is correct
53 Correct 21 ms 31168 KB Output is correct
54 Correct 39 ms 20680 KB Output is correct
55 Correct 77 ms 109340 KB Output is correct
56 Correct 54 ms 61104 KB Output is correct
57 Correct 50 ms 60172 KB Output is correct
58 Correct 55 ms 60264 KB Output is correct
59 Correct 56 ms 57080 KB Output is correct
60 Correct 55 ms 58540 KB Output is correct
61 Correct 185 ms 211600 KB Output is correct
62 Correct 214 ms 210580 KB Output is correct
63 Correct 230 ms 209556 KB Output is correct
64 Runtime error 214 ms 262144 KB Execution killed with signal 9
65 Halted 0 ms 0 KB -