oj.uz

Submission #491306

# Submission time Handle Problem Language Result Execution time Memory
491306 2021-12-01T13:00:39 Z blue Treatment Project (JOI20_treatment) C++17
35 / 100
 619 ms 109028 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <queue>
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 = 200'000;
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 << 20];
 
    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, ll 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, ll 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;
 
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 << 20); 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;
        }
    }
 
 
    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(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';
            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 Correct 619 ms 84684 KB Output is correct
2 Correct 411 ms 84572 KB Output is correct
3 Runtime error 116 ms 109028 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 33 ms 51916 KB Output is correct
2 Correct 34 ms 51816 KB Output is correct
3 Correct 37 ms 51784 KB Output is correct
4 Correct 36 ms 51916 KB Output is correct
5 Correct 35 ms 51868 KB Output is correct
6 Correct 30 ms 51916 KB Output is correct
7 Correct 31 ms 51924 KB Output is correct
8 Correct 31 ms 51924 KB Output is correct
9 Correct 30 ms 51916 KB Output is correct
10 Correct 31 ms 51904 KB Output is correct
11 Correct 37 ms 51884 KB Output is correct
12 Correct 32 ms 51916 KB Output is correct
13 Correct 33 ms 51836 KB Output is correct
14 Correct 33 ms 51820 KB Output is correct
15 Correct 33 ms 51848 KB Output is correct
16 Correct 32 ms 51888 KB Output is correct
17 Correct 30 ms 51884 KB Output is correct
18 Correct 30 ms 51856 KB Output is correct
19 Correct 30 ms 51880 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 51916 KB Output is correct
2 Correct 34 ms 51816 KB Output is correct
3 Correct 37 ms 51784 KB Output is correct
4 Correct 36 ms 51916 KB Output is correct
5 Correct 35 ms 51868 KB Output is correct
6 Correct 30 ms 51916 KB Output is correct
7 Correct 31 ms 51924 KB Output is correct
8 Correct 31 ms 51924 KB Output is correct
9 Correct 30 ms 51916 KB Output is correct
10 Correct 31 ms 51904 KB Output is correct
11 Correct 37 ms 51884 KB Output is correct
12 Correct 32 ms 51916 KB Output is correct
13 Correct 33 ms 51836 KB Output is correct
14 Correct 33 ms 51820 KB Output is correct
15 Correct 33 ms 51848 KB Output is correct
16 Correct 32 ms 51888 KB Output is correct
17 Correct 30 ms 51884 KB Output is correct
18 Correct 30 ms 51856 KB Output is correct
19 Correct 30 ms 51880 KB Output is correct
20 Correct 42 ms 53424 KB Output is correct
21 Correct 48 ms 53552 KB Output is correct
22 Correct 47 ms 53360 KB Output is correct
23 Correct 42 ms 53452 KB Output is correct
24 Correct 43 ms 53464 KB Output is correct
25 Correct 45 ms 53476 KB Output is correct
26 Correct 43 ms 53412 KB Output is correct
27 Correct 42 ms 53452 KB Output is correct
28 Correct 43 ms 53364 KB Output is correct
29 Correct 43 ms 53440 KB Output is correct
30 Correct 45 ms 53496 KB Output is correct
31 Correct 41 ms 53472 KB Output is correct
32 Correct 45 ms 53392 KB Output is correct
33 Correct 52 ms 53452 KB Output is correct
34 Correct 43 ms 53388 KB Output is correct
35 Correct 43 ms 53404 KB Output is correct
36 Correct 41 ms 53428 KB Output is correct
37 Correct 43 ms 53444 KB Output is correct

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 619 ms 84684 KB Output is correct
2 Correct 411 ms 84572 KB Output is correct
3 Runtime error 116 ms 109028 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -