oj.uz

Submission #489935

# Submission time Handle Problem Language Result Execution time Memory
489935 2021-11-25T05:28:55 Z blue Treatment Project (JOI20_treatment) C++17
35 / 100
 404 ms 296840 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
using namespace std;

using ll = long long;
using pll = pair<ll, ll>;
using vpll = vector<pll>;
using vi = vector<int>;
using vll = vector<ll>;
using pii = pair<int, int>;

struct project
{
    int T;
    int L;
    int R;
    int C;
    int I;
};



vector<project> P;

const int maxM = 100'00;
vi query_ans;

vi visited(maxM, 0);

const ll INF = 1'000'000'000'000'000'000LL;

vll dp(maxM, INF);

struct pos
{
    int i;
};

bool operator < (pos A, pos B)
{
    if(dp[A.i] == dp[B.i]) return A.i < B.i;
    else return dp[A.i] < dp[B.i];
}



struct segtree
{
    int l;
    int r;
    deque<int> v;

    segtree* left = NULL;
    segtree* right = NULL;

    segtree()
    {
        ;
    }

    segtree(int L, int R)
    {
        l = L;
        r = R;
        if(l == r) return;

        int m = (l+r)/2;
        left = new segtree(l, m);
        right = new segtree(m+1, r);
    }

    void add(int I, ll Pr)
    {
        v.push_back(Pr);
        if(l != r)
        {
            if(I <= (l+r)/2) left->add(I, Pr);
            else right->add(I, Pr);
        }
    }

    void getU(int L, int R, ll mxv)
    {
        if(R < l || r < L) return;
        else if(L <= l && r <= R)
        {
            while(1)
            {
                if(v.empty()) break;
                if(P[v[0]].L + P[v[0]].T > mxv) break;
                if(!visited[v[0]])
                {
                    query_ans.push_back(v[0]);
                    visited[v[0]] = 1;
                }
                v.pop_front();
            }
        }
        else
        {
            left->getU(L, R, mxv);
            right->getU(L, R, mxv);
        }
    }

    void getD(int L, int R, ll mxv)
    {
        if(R < l || r < L) return;
        else if(L <= l && r <= R)
        {
            while(1)
            {
                if(v.empty()) break;
                if(P[v[0]].L - P[v[0]].T > mxv) break;
                if(!visited[v[0]])
                {
                    query_ans.push_back(v[0]);
                    visited[v[0]] = 1;
                }
                v.pop_front();
            }
        }
        else
        {
            left->getD(L, R, mxv);
            right->getD(L, R, mxv);
        }
    }
};

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int N, M;
    cin >> N >> M;

    P = vector<project>(M);
    for(int i = 0; i < M; i++) cin >> P[i].T >> P[i].L >> P[i].R >> P[i].C;

    sort(P.begin(), P.end(), [] (project x, project y)
    {
        return x.T < y.T;
    });

    for(int i = 0; i < M; i++) P[i].I = i;

    segtree U(0, M-1), D(0, M-1);

    sort(P.begin(), P.end(), [] (project x, project y)
    {
        return x.L + x.T <= y.L + y.T;
    });

    for(int i = 0; i < M; i++)
        U.add(P[i].I, P[i].I);

    sort(P.begin(), P.end(), [] (project x, project y)
    {
        return x.L - x.T < y.L - y.T;
    });

    for(int i = 0; i < M; i++)
        D.add(P[i].I, P[i].I);



    sort(P.begin(), P.end(), [] (project x, project y)
    {
        return x.I < y.I;
    });

    for(int i = 0; i < M; i++)
    {
        if(P[i].L == 1)
        {
            dp[i] = P[i].C;
            visited[i] = 1;
        }
    }


    set<pos> tbv;
    for(int i = 0; i < M; i++) tbv.insert(pos{i});

    while(!tbv.empty())
    {
        int u = tbv.begin()->i;
        tbv.erase(tbv.begin());
        // cerr << "visiting " << u << ' ' << P[u].L << ' ' << P[u].R <<  '\n';


        if(!visited[u]) break;


        query_ans.clear();
        U.getU(u+1, M-1, P[u].R + P[u].T + 1);
        D.getD(0, u-1, P[u].R - P[u].T + 1);

        for(int v: query_ans)
        {
            // cerr << u << " -> " << v << '\n';
            if(P[v].L <= P[u].R + 1 - abs(P[u].T - P[v].T))
            {
                if(dp[v] > dp[u] + P[v].C)
                {
                    tbv.erase(pos{v});
                    dp[v] = dp[u] + P[v].C;
                    tbv.insert(pos{v});
                }
            }
        }
    }

    ll final_ans = INF;
    for(int i = 0; i < M; i++)
        if(P[i].R == N)
            final_ans = min(final_ans, dp[i]);

    if(final_ans >= INF) final_ans = -1;

    cout << final_ans << '\n';
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 404 ms 296840 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 0 ms 460 KB Output is correct
5 Correct 0 ms 460 KB Output is correct
6 Correct 0 ms 460 KB Output is correct
7 Correct 0 ms 460 KB Output is correct
8 Correct 0 ms 460 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 460 KB Output is correct
11 Correct 0 ms 460 KB Output is correct
12 Correct 0 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 0 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 0 ms 460 KB Output is correct
19 Correct 0 ms 460 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 0 ms 460 KB Output is correct
5 Correct 0 ms 460 KB Output is correct
6 Correct 0 ms 460 KB Output is correct
7 Correct 0 ms 460 KB Output is correct
8 Correct 0 ms 460 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 460 KB Output is correct
11 Correct 0 ms 460 KB Output is correct
12 Correct 0 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 0 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 0 ms 460 KB Output is correct
19 Correct 0 ms 460 KB Output is correct
20 Correct 17 ms 15076 KB Output is correct
21 Correct 17 ms 14972 KB Output is correct
22 Correct 18 ms 15052 KB Output is correct
23 Correct 18 ms 14980 KB Output is correct
24 Correct 21 ms 15052 KB Output is correct
25 Correct 23 ms 15056 KB Output is correct
26 Correct 20 ms 15072 KB Output is correct
27 Correct 18 ms 14988 KB Output is correct
28 Correct 20 ms 14996 KB Output is correct
29 Correct 28 ms 15004 KB Output is correct
30 Correct 13 ms 15060 KB Output is correct
31 Correct 13 ms 15052 KB Output is correct
32 Correct 20 ms 15100 KB Output is correct
33 Correct 22 ms 15200 KB Output is correct
34 Correct 21 ms 15060 KB Output is correct
35 Correct 19 ms 15092 KB Output is correct
36 Correct 19 ms 15104 KB Output is correct
37 Correct 21 ms 15080 KB Output is correct

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 404 ms 296840 KB Output isn't correct
2 Halted 0 ms 0 KB -