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Submission #1057690

# Submission time Handle Problem Language Result Execution time Memory
1057690 2024-08-14T03:25:26 Z vjudge1 Bigger segments (IZhO19_segments) C++17
27 / 100
 576 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 = -1e18; 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 -1e18;
        if (u <= l && r <= v) return st[id].v;
        ll m = (r+l)>>1, val = -1e18;
        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(0,0,1e18,i,x);}
    ll get(ll u, ll v) {return get(0,0,1e18,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 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 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 0 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 0 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 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 0 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 0 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 83 ms 44428 KB Output is correct
17 Correct 90 ms 71136 KB Output is correct
18 Correct 102 ms 85136 KB Output is correct
19 Correct 128 ms 86448 KB Output is correct
20 Correct 134 ms 87536 KB Output is correct
21 Correct 105 ms 91720 KB Output is correct
22 Correct 69 ms 59592 KB Output is correct
23 Correct 36 ms 34296 KB Output is correct
24 Correct 55 ms 14164 KB Output is correct
25 Correct 116 ms 96176 KB Output is correct
26 Correct 49 ms 9556 KB Output is correct
27 Correct 59 ms 17372 KB Output is correct
28 Correct 49 ms 8764 KB Output is correct
29 Correct 60 ms 28968 KB Output is correct
30 Correct 72 ms 31828 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 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 0 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 0 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 83 ms 44428 KB Output is correct
17 Correct 90 ms 71136 KB Output is correct
18 Correct 102 ms 85136 KB Output is correct
19 Correct 128 ms 86448 KB Output is correct
20 Correct 134 ms 87536 KB Output is correct
21 Correct 105 ms 91720 KB Output is correct
22 Correct 69 ms 59592 KB Output is correct
23 Correct 36 ms 34296 KB Output is correct
24 Correct 55 ms 14164 KB Output is correct
25 Correct 116 ms 96176 KB Output is correct
26 Correct 49 ms 9556 KB Output is correct
27 Correct 59 ms 17372 KB Output is correct
28 Correct 49 ms 8764 KB Output is correct
29 Correct 60 ms 28968 KB Output is correct
30 Correct 72 ms 31828 KB Output is correct
31 Runtime error 576 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 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 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 0 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 0 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 83 ms 44428 KB Output is correct
17 Correct 90 ms 71136 KB Output is correct
18 Correct 102 ms 85136 KB Output is correct
19 Correct 128 ms 86448 KB Output is correct
20 Correct 134 ms 87536 KB Output is correct
21 Correct 105 ms 91720 KB Output is correct
22 Correct 69 ms 59592 KB Output is correct
23 Correct 36 ms 34296 KB Output is correct
24 Correct 55 ms 14164 KB Output is correct
25 Correct 116 ms 96176 KB Output is correct
26 Correct 49 ms 9556 KB Output is correct
27 Correct 59 ms 17372 KB Output is correct
28 Correct 49 ms 8764 KB Output is correct
29 Correct 60 ms 28968 KB Output is correct
30 Correct 72 ms 31828 KB Output is correct
31 Runtime error 576 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 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 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 0 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 0 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 83 ms 44428 KB Output is correct
17 Correct 90 ms 71136 KB Output is correct
18 Correct 102 ms 85136 KB Output is correct
19 Correct 128 ms 86448 KB Output is correct
20 Correct 134 ms 87536 KB Output is correct
21 Correct 105 ms 91720 KB Output is correct
22 Correct 69 ms 59592 KB Output is correct
23 Correct 36 ms 34296 KB Output is correct
24 Correct 55 ms 14164 KB Output is correct
25 Correct 116 ms 96176 KB Output is correct
26 Correct 49 ms 9556 KB Output is correct
27 Correct 59 ms 17372 KB Output is correct
28 Correct 49 ms 8764 KB Output is correct
29 Correct 60 ms 28968 KB Output is correct
30 Correct 72 ms 31828 KB Output is correct
31 Runtime error 576 ms 262144 KB Execution killed with signal 9
32 Halted 0 ms 0 KB -