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답안 #1057723

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1057723 2024-08-14T04:09:14 Z vjudge1 Bigger segments (IZhO19_segments) C++17
100 / 100
 314 ms 211348 KB 
#include <bits/stdc++.h>
using namespace std;
typedef 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];
long long 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(long long id, long long l, long long r, long long i, ll x)
    {
        if (l == r) {st[id].v = max(st[id].v,x); return;}
        long long 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(long long id, long long l, long long r, long long u, long long v)
    {
        if (r < u || v < l) return 0;
        if (u <= l && r <= v) return st[id].v;
        long long m = (r+l)>>1; ll 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(long long i, ll x) {update(0,0,1e17,i,x);}
    ll get(long long u, long long 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((long long)opt[i]+a[i],i);
    }   
    cout << dp[n];
}

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 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 1 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 1 ms 2392 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

# 결과 실행 시간 메모리 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 1 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 1 ms 2392 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 2652 KB Output is correct
17 Correct 0 ms 2652 KB Output is correct
18 Correct 1 ms 2672 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2844 KB Output is correct
21 Correct 1 ms 2844 KB Output is correct
22 Correct 0 ms 2652 KB Output is correct
23 Correct 0 ms 2652 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2844 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 0 ms 2652 KB Output is correct
30 Correct 1 ms 2648 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 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 1 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 1 ms 2392 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 2652 KB Output is correct
17 Correct 0 ms 2652 KB Output is correct
18 Correct 1 ms 2672 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2844 KB Output is correct
21 Correct 1 ms 2844 KB Output is correct
22 Correct 0 ms 2652 KB Output is correct
23 Correct 0 ms 2652 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2844 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 0 ms 2652 KB Output is correct
30 Correct 1 ms 2648 KB Output is correct
31 Correct 2 ms 3416 KB Output is correct
32 Correct 2 ms 3416 KB Output is correct
33 Correct 2 ms 4052 KB Output is correct
34 Correct 2 ms 4052 KB Output is correct
35 Correct 3 ms 4052 KB Output is correct
36 Correct 2 ms 4148 KB Output is correct
37 Correct 2 ms 4052 KB Output is correct
38 Correct 1 ms 3376 KB Output is correct
39 Correct 2 ms 2648 KB Output is correct
40 Correct 3 ms 4240 KB Output is correct
41 Correct 1 ms 2704 KB Output is correct
42 Correct 2 ms 3004 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 2 ms 3416 KB Output is correct
45 Correct 2 ms 3416 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 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 1 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 1 ms 2392 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 2652 KB Output is correct
17 Correct 0 ms 2652 KB Output is correct
18 Correct 1 ms 2672 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2844 KB Output is correct
21 Correct 1 ms 2844 KB Output is correct
22 Correct 0 ms 2652 KB Output is correct
23 Correct 0 ms 2652 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2844 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 0 ms 2652 KB Output is correct
30 Correct 1 ms 2648 KB Output is correct
31 Correct 2 ms 3416 KB Output is correct
32 Correct 2 ms 3416 KB Output is correct
33 Correct 2 ms 4052 KB Output is correct
34 Correct 2 ms 4052 KB Output is correct
35 Correct 3 ms 4052 KB Output is correct
36 Correct 2 ms 4148 KB Output is correct
37 Correct 2 ms 4052 KB Output is correct
38 Correct 1 ms 3376 KB Output is correct
39 Correct 2 ms 2648 KB Output is correct
40 Correct 3 ms 4240 KB Output is correct
41 Correct 1 ms 2704 KB Output is correct
42 Correct 2 ms 3004 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 2 ms 3416 KB Output is correct
45 Correct 2 ms 3416 KB Output is correct
46 Correct 34 ms 32452 KB Output is correct
47 Correct 43 ms 32208 KB Output is correct
48 Correct 52 ms 57816 KB Output is correct
49 Correct 57 ms 57268 KB Output is correct
50 Correct 66 ms 56488 KB Output is correct
51 Correct 52 ms 57764 KB Output is correct
52 Correct 28 ms 30904 KB Output is correct
53 Correct 16 ms 18888 KB Output is correct
54 Correct 39 ms 15252 KB Output is correct
55 Correct 59 ms 58024 KB Output is correct
56 Correct 47 ms 32692 KB Output is correct
57 Correct 45 ms 33704 KB Output is correct
58 Correct 51 ms 33216 KB Output is correct
59 Correct 51 ms 32188 KB Output is correct
60 Correct 48 ms 32700 KB Output is correct

Subtask #5
27.0 / 27.0

# 결과 실행 시간 메모리 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 1 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 1 ms 2392 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 2652 KB Output is correct
17 Correct 0 ms 2652 KB Output is correct
18 Correct 1 ms 2672 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2844 KB Output is correct
21 Correct 1 ms 2844 KB Output is correct
22 Correct 0 ms 2652 KB Output is correct
23 Correct 0 ms 2652 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2844 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 0 ms 2652 KB Output is correct
30 Correct 1 ms 2648 KB Output is correct
31 Correct 2 ms 3416 KB Output is correct
32 Correct 2 ms 3416 KB Output is correct
33 Correct 2 ms 4052 KB Output is correct
34 Correct 2 ms 4052 KB Output is correct
35 Correct 3 ms 4052 KB Output is correct
36 Correct 2 ms 4148 KB Output is correct
37 Correct 2 ms 4052 KB Output is correct
38 Correct 1 ms 3376 KB Output is correct
39 Correct 2 ms 2648 KB Output is correct
40 Correct 3 ms 4240 KB Output is correct
41 Correct 1 ms 2704 KB Output is correct
42 Correct 2 ms 3004 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 2 ms 3416 KB Output is correct
45 Correct 2 ms 3416 KB Output is correct
46 Correct 34 ms 32452 KB Output is correct
47 Correct 43 ms 32208 KB Output is correct
48 Correct 52 ms 57816 KB Output is correct
49 Correct 57 ms 57268 KB Output is correct
50 Correct 66 ms 56488 KB Output is correct
51 Correct 52 ms 57764 KB Output is correct
52 Correct 28 ms 30904 KB Output is correct
53 Correct 16 ms 18888 KB Output is correct
54 Correct 39 ms 15252 KB Output is correct
55 Correct 59 ms 58024 KB Output is correct
56 Correct 47 ms 32692 KB Output is correct
57 Correct 45 ms 33704 KB Output is correct
58 Correct 51 ms 33216 KB Output is correct
59 Correct 51 ms 32188 KB Output is correct
60 Correct 48 ms 32700 KB Output is correct
61 Correct 166 ms 109468 KB Output is correct
62 Correct 189 ms 109080 KB Output is correct
63 Correct 207 ms 108100 KB Output is correct
64 Correct 266 ms 211092 KB Output is correct
65 Correct 314 ms 211348 KB Output is correct
66 Correct 250 ms 211092 KB Output is correct
67 Correct 211 ms 209044 KB Output is correct
68 Correct 102 ms 108452 KB Output is correct
69 Correct 195 ms 33856 KB Output is correct
70 Correct 285 ms 210504 KB Output is correct
71 Correct 217 ms 112104 KB Output is correct
72 Correct 214 ms 110752 KB Output is correct
73 Correct 254 ms 210584 KB Output is correct
74 Correct 260 ms 210316 KB Output is correct
75 Correct 255 ms 210328 KB Output is correct