oj.uz

Submission #491322

# Submission time Handle Problem Language Result Execution time Memory
491322 2021-12-01T13:48:32 Z blue Treatment Project (JOI20_treatment) C++17
35 / 100
 439 ms 41880 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <queue>
#include <cassert>
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 = 100'000;
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
{
    // deque<int> v[220'000];
    vector<int> v[1 << 18];
 
    segtree()
    {
        ;
    }
 
    segtree(int L, int R)
    {
        ;
    }
 
    void add(int i, int l, int r, int I, ll Pr)
    {
        v[i].push_back(Pr);
        if(l != r)
        {
            if(I <= (l+r)/2) add(2*i, l, (l+r)/2, I, Pr);
            else add(2*i + 1, (l+r)/2+1, r, I, Pr);
        }
    }
 
    void getU(int i, int l, int r, int L, int R, int mxv)
    {
        if(R < l || r < L || R < L) return;
        else if(L <= l && r <= R)
        {
            while(1)
            {
                if(v[i].empty()) break;
                if(P[v[i].back()].L + P[v[i].back()].T > mxv) break;
                if(!visited[v[i].back()])
                {
                    query_ans.push_back(v[i].back());
                    visited[v[i].back()] = 1;
                }
                v[i].pop_back();
            }
        }
        else
        {
            getU(2*i, l, (l+r)/2, L, R, mxv);
            getU(2*i+1, (l+r)/2+1, r, L, R, mxv);
        }
    }
 
    void getD(int i, int l, int r, int L, int R, int mxv)
    {
        if(R < l || r < L || R < L) return;
        else if(L <= l && r <= R)
        {
            while(1)
            {
                if(v[i].empty()) break;
                if(P[v[i].back()].L - P[v[i].back()].T > mxv) break;
                if(!visited[v[i].back()])
                {
                    query_ans.push_back(v[i].back());
                    visited[v[i].back()] = 1;
                }
                v[i].pop_back();
            }
        }
        else
        {
            getD(2*i, l, (l+r)/2, L, R, mxv);
            getD(2*i+1, (l+r)/2+1, r, L, R, mxv);
        }
    }
};
 
segtree U, D;
 
    set<pos> tbv;
 
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;
 
 
    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(1, 0, M-1, 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(1, 0, M-1, P[i].I, P[i].I);
 
    for(int f = 0; f < (1 << 18); f++)
    {
        reverse(U.v[f].begin(), U.v[f].end());
        reverse(D.v[f].begin(), D.v[f].end());
    }
 
 
 
    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;
            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';
 
        query_ans.clear();
        U.getU(1, 0, M-1, u+1, M-1, P[u].R + P[u].T + 1);
        D.getD(1, 0, M-1, 0, u-1, P[u].R - P[u].T + 1);
 
        for(int v: query_ans)
        {
            // cerr << u << " -> " << v << '\n';
            assert(P[v].L <= P[u].R + 1 - abs(P[u].T - P[v].T));
            assert(dp[v] == INF);
            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 Correct 439 ms 41880 KB Output is correct
2 Correct 337 ms 41784 KB Output is correct
3 Runtime error 69 ms 31768 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 13772 KB Output is correct
2 Correct 8 ms 13772 KB Output is correct
3 Correct 8 ms 13724 KB Output is correct
4 Correct 8 ms 13772 KB Output is correct
5 Correct 8 ms 13692 KB Output is correct
6 Correct 8 ms 13792 KB Output is correct
7 Correct 9 ms 13772 KB Output is correct
8 Correct 9 ms 13728 KB Output is correct
9 Correct 11 ms 13716 KB Output is correct
10 Correct 10 ms 13772 KB Output is correct
11 Correct 9 ms 13704 KB Output is correct
12 Correct 9 ms 13772 KB Output is correct
13 Correct 9 ms 13728 KB Output is correct
14 Correct 9 ms 13720 KB Output is correct
15 Correct 9 ms 13772 KB Output is correct
16 Correct 9 ms 13772 KB Output is correct
17 Correct 8 ms 13772 KB Output is correct
18 Correct 8 ms 13772 KB Output is correct
19 Correct 8 ms 13772 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 13772 KB Output is correct
2 Correct 8 ms 13772 KB Output is correct
3 Correct 8 ms 13724 KB Output is correct
4 Correct 8 ms 13772 KB Output is correct
5 Correct 8 ms 13692 KB Output is correct
6 Correct 8 ms 13792 KB Output is correct
7 Correct 9 ms 13772 KB Output is correct
8 Correct 9 ms 13728 KB Output is correct
9 Correct 11 ms 13716 KB Output is correct
10 Correct 10 ms 13772 KB Output is correct
11 Correct 9 ms 13704 KB Output is correct
12 Correct 9 ms 13772 KB Output is correct
13 Correct 9 ms 13728 KB Output is correct
14 Correct 9 ms 13720 KB Output is correct
15 Correct 9 ms 13772 KB Output is correct
16 Correct 9 ms 13772 KB Output is correct
17 Correct 8 ms 13772 KB Output is correct
18 Correct 8 ms 13772 KB Output is correct
19 Correct 8 ms 13772 KB Output is correct
20 Correct 19 ms 15268 KB Output is correct
21 Correct 18 ms 15180 KB Output is correct
22 Correct 19 ms 15036 KB Output is correct
23 Correct 18 ms 15180 KB Output is correct
24 Correct 21 ms 15308 KB Output is correct
25 Correct 20 ms 15052 KB Output is correct
26 Correct 19 ms 15052 KB Output is correct
27 Correct 17 ms 15052 KB Output is correct
28 Correct 20 ms 15316 KB Output is correct
29 Correct 21 ms 15036 KB Output is correct
30 Correct 15 ms 15052 KB Output is correct
31 Correct 16 ms 15060 KB Output is correct
32 Correct 26 ms 15392 KB Output is correct
33 Correct 23 ms 15308 KB Output is correct
34 Correct 26 ms 15052 KB Output is correct
35 Correct 19 ms 15320 KB Output is correct
36 Correct 18 ms 15320 KB Output is correct
37 Correct 20 ms 15152 KB Output is correct

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 439 ms 41880 KB Output is correct
2 Correct 337 ms 41784 KB Output is correct
3 Runtime error 69 ms 31768 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -