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Submission #1057691

# Submission time Handle Problem Language Result Execution time Memory
1057691 2024-08-14T03:27:27 Z vjudge1 Bigger segments (IZhO19_segments) C++17
27 / 100
 552 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 = 3007;
ll a[mxn];
struct dynamic_segment_tree
{
    struct node {ll v, l, r; node() {v = -1e9; 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 -1e9;
        if (u <= l && r <= v) return st[id].v;
        ll m = (r+l)>>1, val = -1e9;
        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(0,0,1e16,i,x);}
    ll get(ll u, ll v) {return get(0,0,1e16,u,v);}
};
vector<dynamic_segment_tree> st(mxn);
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);
    ll n; cin >> n;
    for (ll i = 1; i <= n; i++) 
    {
        cin >> a[i];
        a[i] += a[i-1];
    }
    ll ans = 0;
    st[0].update(0,0);
    for (ll i = 1; i <= n; i++)
    {
        for (ll j = 1; j <= i; j++)
        {
            ll sum = a[i]-a[j-1];
            ll opt = st[j-1].get(0,sum)+1;
            // cerr << j << ' ' << i << ' ' << opt << '\n';
            st[i].update(sum,opt);
            ans = max(ans, opt);
        }
    }
    cout << ans;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 0 ms 652 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 544 KB Output is correct
15 Correct 1 ms 600 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 0 ms 652 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 544 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 81 ms 44112 KB Output is correct
17 Correct 94 ms 70800 KB Output is correct
18 Correct 97 ms 85040 KB Output is correct
19 Correct 106 ms 86356 KB Output is correct
20 Correct 113 ms 87604 KB Output is correct
21 Correct 118 ms 91596 KB Output is correct
22 Correct 63 ms 59564 KB Output is correct
23 Correct 34 ms 34252 KB Output is correct
24 Correct 50 ms 13952 KB Output is correct
25 Correct 116 ms 95920 KB Output is correct
26 Correct 42 ms 9556 KB Output is correct
27 Correct 56 ms 17236 KB Output is correct
28 Correct 43 ms 8776 KB Output is correct
29 Correct 56 ms 28756 KB Output is correct
30 Correct 58 ms 31828 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 0 ms 652 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 544 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 81 ms 44112 KB Output is correct
17 Correct 94 ms 70800 KB Output is correct
18 Correct 97 ms 85040 KB Output is correct
19 Correct 106 ms 86356 KB Output is correct
20 Correct 113 ms 87604 KB Output is correct
21 Correct 118 ms 91596 KB Output is correct
22 Correct 63 ms 59564 KB Output is correct
23 Correct 34 ms 34252 KB Output is correct
24 Correct 50 ms 13952 KB Output is correct
25 Correct 116 ms 95920 KB Output is correct
26 Correct 42 ms 9556 KB Output is correct
27 Correct 56 ms 17236 KB Output is correct
28 Correct 43 ms 8776 KB Output is correct
29 Correct 56 ms 28756 KB Output is correct
30 Correct 58 ms 31828 KB Output is correct
31 Runtime error 552 ms 262144 KB Execution killed with signal 9
32 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 0 ms 652 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 544 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 81 ms 44112 KB Output is correct
17 Correct 94 ms 70800 KB Output is correct
18 Correct 97 ms 85040 KB Output is correct
19 Correct 106 ms 86356 KB Output is correct
20 Correct 113 ms 87604 KB Output is correct
21 Correct 118 ms 91596 KB Output is correct
22 Correct 63 ms 59564 KB Output is correct
23 Correct 34 ms 34252 KB Output is correct
24 Correct 50 ms 13952 KB Output is correct
25 Correct 116 ms 95920 KB Output is correct
26 Correct 42 ms 9556 KB Output is correct
27 Correct 56 ms 17236 KB Output is correct
28 Correct 43 ms 8776 KB Output is correct
29 Correct 56 ms 28756 KB Output is correct
30 Correct 58 ms 31828 KB Output is correct
31 Runtime error 552 ms 262144 KB Execution killed with signal 9
32 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 0 ms 652 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 544 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 81 ms 44112 KB Output is correct
17 Correct 94 ms 70800 KB Output is correct
18 Correct 97 ms 85040 KB Output is correct
19 Correct 106 ms 86356 KB Output is correct
20 Correct 113 ms 87604 KB Output is correct
21 Correct 118 ms 91596 KB Output is correct
22 Correct 63 ms 59564 KB Output is correct
23 Correct 34 ms 34252 KB Output is correct
24 Correct 50 ms 13952 KB Output is correct
25 Correct 116 ms 95920 KB Output is correct
26 Correct 42 ms 9556 KB Output is correct
27 Correct 56 ms 17236 KB Output is correct
28 Correct 43 ms 8776 KB Output is correct
29 Correct 56 ms 28756 KB Output is correct
30 Correct 58 ms 31828 KB Output is correct
31 Runtime error 552 ms 262144 KB Execution killed with signal 9
32 Halted 0 ms 0 KB -