oj.uz

Submission #262366

# Submission time Handle Problem Language Result Execution time Memory
262366 2020-08-12T17:34:05 Z Kastanda Harvest (JOI20_harvest) C++11
100 / 100
 2052 ms 252280 KB 
// M
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template < typename T >
using ordered_set = tree < T , null_type , less < T > , rb_tree_tag , tree_order_statistics_node_update >;
typedef long long ll;
const int N = 200195;
int n, m, q, L, regenC, FNL, ts, A[N], B[N], M[N], Nxt[N];
ll T[N], RS[N], Lnxt[N], lz[N], D[N], F[N];
vector < int > Q[N], In[N], V[N];
vector < pair < ll , int > > VST[N];
ordered_set < pair < ll , int > > ST[N], TS[N];
void DFS(int v)
{
        M[v] = 1;
        for (int u : In[v])
        {
                if (!M[u])
                        DFS(u);
                if (u == v)
                        continue;
                lz[u] += Lnxt[u];
                if (ST[v].size() < ST[u].size())
                        ST[v].swap(ST[u]), swap(lz[v], lz[u]);
                for (auto a : ST[u])
                        ST[v].insert(make_pair(a.first + lz[u] - lz[v], a.second));
                ST[u].clear(); lz[u] = 0;
        }
        for (auto a : VST[v])
                ST[v].insert(make_pair(a.first - lz[v], a.second));
        for (int i : Q[v])
                RS[i] += ST[v].order_of_key({T[i] - lz[v], N});
}
inline void AddFen(int i, ll val)
{
        for (i ++; i < FNL; i += i & - i)
                F[i] += val;
}
inline ll GetFen(int i)
{
        ll rt = 0;
        for (i ++; i; i -= i & - i)
                rt += F[i];
        return rt;
}
inline void AddRem(int i, ll val)
{
        for (i ++; i < FNL; i += i & - i)
                TS[i].insert({val, ts ++});
}
inline ll GetRem(int i, ll le, ll ri)
{
        ll rt = 0;
        for (i ++; i; i -= i & - i)
                rt += TS[i].order_of_key({ri, -1}) - TS[i].order_of_key({le, -1});
        return rt;
}
int main()
{
        scanf("%d%d%d%d", &n, &m, &L, &regenC);
        for (int i = 1; i <= n; i ++)
                scanf("%d", &A[i]);
        for (int i = 1; i <= m; i ++)
                scanf("%d", &B[i]);
        scanf("%d", &q);
        for (int i = 1; i <= q; i ++)
        {
                int v;
                scanf("%d%lld", &v, &T[i]);
                Q[v].push_back(i);
        }

        // Building function graph ...
        for (int i = 1; i <= n; i ++)
        {
                ll c = regenC / L;
                ll r = regenC % L;
                Lnxt[i] += (ll)c * L;
                if (A[1] <= A[i] - r)
                        Nxt[i] = upper_bound(A + 1, A + n + 1, A[i] - r) - A - 1, Lnxt[i] += A[i] - A[Nxt[i]];
                else
                        Nxt[i] = upper_bound(A + 1, A + n + 1, A[i] - r + L) - A - 1, Lnxt[i] += L + A[i] - A[Nxt[i]];
        }
        for (int i = 1, ptr = 1; i <= m; i ++)
        {
                if (B[i] < A[1])
                        VST[n].push_back({B[i] + L - A[n], i});
                else
                {
                        while (ptr < n && A[ptr + 1] <= B[i])
                                ptr ++;
                        VST[ptr].push_back({B[i] - A[ptr], i});
                }
        }
        for (int i = 1; i <= n; i ++)
                In[Nxt[i]].push_back(i);
        for (int i = 1; i <= n; i ++)
                if (!M[i])
                        DFS(i);
        for (int i = 1; i <= n; i ++)
                if (ST[i].size()) // Head of a circle
                {
                        vector < int > C = {i};
                        int nw = Nxt[i];
                        while (nw != i)
                                C.push_back(nw), nw = Nxt[nw];
                        int k = (int)C.size();
                        C.push_back(i);
                        vector < ll > vec;
                        for (auto a : ST[i])
                                vec.push_back(a.first + lz[i]);
                        sort(vec.begin(), vec.end()); // Redundant
                        FNL = max((int)vec.size(), k) + 10;
                        D[0] = 0;
                        for (int j = 1; j <= k; j ++)
                                D[j] = D[j - 1] + Lnxt[C[j - 1]];
                        ll CL = D[k];
                        for (int j = 0; j < (int)vec.size(); j ++)
                        {
                                AddFen(j, vec[j] / CL);
                                AddRem(j, vec[j] % CL);
                                int lb = lower_bound(D + 1, D + k + 1, CL - vec[j] % CL) - D;
                                assert(lb <= k);
                                V[lb].push_back(j);
                        }
                        for (int j = 1; j <= k; j ++)
                        {
                                for (int id : V[j])
                                        AddFen(id, 1LL);

                                for (int id : Q[C[j]])
                                {
                                        int lb = upper_bound(vec.begin(), vec.end(), T[id] - D[j]) - vec.begin();
                                        RS[id] += (T[id] / CL) * (ll)lb;
                                        RS[id] -= GetFen(lb - 1);

                                        ll le = 0, ri = T[id] % CL;
                                        le = (le - D[j] % CL + CL) % CL;
                                        ri = (ri - D[j] % CL + CL) % CL;
                                        ri ++;

                                        if (le < ri)
                                                RS[id] += GetRem(lb - 1, le, ri);
                                        else
                                                RS[id] += GetRem(lb - 1, 0, ri) + GetRem(lb - 1, le, CL);
                                }
                        }

                        for (int j = 0; j <= FNL; j ++)
                        {
                                ts = 0;
                                F[j] = D[j] = 0;
                                TS[j].clear();
                                V[j].clear();
                        }
                }
        for (int i = 1; i <= q; i ++)
                printf("%lld\n", RS[i]);
        return 0;
}

Compilation message

harvest.cpp: In function 'int main()':
harvest.cpp:63:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   63 |         scanf("%d%d%d%d", &n, &m, &L, &regenC);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
harvest.cpp:65:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   65 |                 scanf("%d", &A[i]);
      |                 ~~~~~^~~~~~~~~~~~~
harvest.cpp:67:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   67 |                 scanf("%d", &B[i]);
      |                 ~~~~~^~~~~~~~~~~~~
harvest.cpp:68:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   68 |         scanf("%d", &q);
      |         ~~~~~^~~~~~~~~~
harvest.cpp:72:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   72 |                 scanf("%d%lld", &v, &T[i]);
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 56952 KB Output is correct
2 Correct 55 ms 57596 KB Output is correct
3 Correct 65 ms 58616 KB Output is correct
4 Correct 74 ms 58628 KB Output is correct
5 Correct 70 ms 58684 KB Output is correct
6 Correct 63 ms 58616 KB Output is correct
7 Correct 67 ms 58792 KB Output is correct
8 Correct 62 ms 58616 KB Output is correct
9 Correct 72 ms 58616 KB Output is correct
10 Correct 65 ms 58616 KB Output is correct
11 Correct 66 ms 58744 KB Output is correct
12 Correct 66 ms 59128 KB Output is correct
13 Correct 68 ms 59128 KB Output is correct
14 Correct 64 ms 58360 KB Output is correct
15 Correct 71 ms 58872 KB Output is correct
16 Correct 72 ms 58616 KB Output is correct
17 Correct 70 ms 58744 KB Output is correct
18 Correct 69 ms 58872 KB Output is correct
19 Correct 70 ms 58828 KB Output is correct
20 Correct 66 ms 58616 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 275 ms 69744 KB Output is correct
2 Correct 322 ms 82296 KB Output is correct
3 Correct 293 ms 81708 KB Output is correct
4 Correct 343 ms 82288 KB Output is correct
5 Correct 329 ms 84960 KB Output is correct
6 Correct 342 ms 84984 KB Output is correct
7 Correct 319 ms 78952 KB Output is correct
8 Correct 285 ms 78952 KB Output is correct
9 Correct 535 ms 116188 KB Output is correct
10 Correct 455 ms 112768 KB Output is correct
11 Correct 689 ms 115276 KB Output is correct
12 Correct 643 ms 115268 KB Output is correct
13 Correct 693 ms 115360 KB Output is correct
14 Correct 523 ms 111956 KB Output is correct
15 Correct 493 ms 100912 KB Output is correct
16 Correct 329 ms 92152 KB Output is correct
17 Correct 318 ms 91804 KB Output is correct
18 Correct 235 ms 72316 KB Output is correct
19 Correct 234 ms 73160 KB Output is correct
20 Correct 296 ms 83832 KB Output is correct

Subtask #3
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 56952 KB Output is correct
2 Correct 55 ms 57596 KB Output is correct
3 Correct 65 ms 58616 KB Output is correct
4 Correct 74 ms 58628 KB Output is correct
5 Correct 70 ms 58684 KB Output is correct
6 Correct 63 ms 58616 KB Output is correct
7 Correct 67 ms 58792 KB Output is correct
8 Correct 62 ms 58616 KB Output is correct
9 Correct 72 ms 58616 KB Output is correct
10 Correct 65 ms 58616 KB Output is correct
11 Correct 66 ms 58744 KB Output is correct
12 Correct 66 ms 59128 KB Output is correct
13 Correct 68 ms 59128 KB Output is correct
14 Correct 64 ms 58360 KB Output is correct
15 Correct 71 ms 58872 KB Output is correct
16 Correct 72 ms 58616 KB Output is correct
17 Correct 70 ms 58744 KB Output is correct
18 Correct 69 ms 58872 KB Output is correct
19 Correct 70 ms 58828 KB Output is correct
20 Correct 66 ms 58616 KB Output is correct
21 Correct 275 ms 69744 KB Output is correct
22 Correct 322 ms 82296 KB Output is correct
23 Correct 293 ms 81708 KB Output is correct
24 Correct 343 ms 82288 KB Output is correct
25 Correct 329 ms 84960 KB Output is correct
26 Correct 342 ms 84984 KB Output is correct
27 Correct 319 ms 78952 KB Output is correct
28 Correct 285 ms 78952 KB Output is correct
29 Correct 535 ms 116188 KB Output is correct
30 Correct 455 ms 112768 KB Output is correct
31 Correct 689 ms 115276 KB Output is correct
32 Correct 643 ms 115268 KB Output is correct
33 Correct 693 ms 115360 KB Output is correct
34 Correct 523 ms 111956 KB Output is correct
35 Correct 493 ms 100912 KB Output is correct
36 Correct 329 ms 92152 KB Output is correct
37 Correct 318 ms 91804 KB Output is correct
38 Correct 235 ms 72316 KB Output is correct
39 Correct 234 ms 73160 KB Output is correct
40 Correct 296 ms 83832 KB Output is correct
41 Correct 1226 ms 220896 KB Output is correct
42 Correct 412 ms 98932 KB Output is correct
43 Correct 239 ms 78964 KB Output is correct
44 Correct 1259 ms 216316 KB Output is correct
45 Correct 1058 ms 222312 KB Output is correct
46 Correct 1099 ms 230124 KB Output is correct
47 Correct 1072 ms 233144 KB Output is correct
48 Correct 1063 ms 222436 KB Output is correct
49 Correct 1032 ms 223468 KB Output is correct
50 Correct 1148 ms 217688 KB Output is correct
51 Correct 1144 ms 216900 KB Output is correct
52 Correct 1948 ms 252280 KB Output is correct
53 Correct 1610 ms 251832 KB Output is correct
54 Correct 2052 ms 252100 KB Output is correct
55 Correct 1308 ms 252088 KB Output is correct
56 Correct 1096 ms 222516 KB Output is correct
57 Correct 1113 ms 230436 KB Output is correct
58 Correct 1165 ms 224124 KB Output is correct
59 Correct 1083 ms 222052 KB Output is correct
60 Correct 1057 ms 222764 KB Output is correct
61 Correct 1054 ms 222948 KB Output is correct
62 Correct 1493 ms 178288 KB Output is correct
63 Correct 960 ms 211112 KB Output is correct
64 Correct 954 ms 209964 KB Output is correct
65 Correct 986 ms 209164 KB Output is correct
66 Correct 1049 ms 211044 KB Output is correct
67 Correct 1016 ms 208328 KB Output is correct
68 Correct 1014 ms 209388 KB Output is correct
69 Correct 1129 ms 224628 KB Output is correct
70 Correct 1082 ms 221296 KB Output is correct
71 Correct 1118 ms 222576 KB Output is correct
72 Correct 1192 ms 222248 KB Output is correct