oj.uz

답안 #1062510

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1062510 2024-08-17T08:02:07 Z RaresFelix 식물 비교 (IOI20_plants) C++17
0 / 100
 31 ms 3412 KB 
#include "plants.h"

#include <bits/stdc++.h>

using namespace std;

using ii = pair<int, int>;
using vi = vector<int>;

struct AINT {
    int n;
    vector<ii> V;
    vi Lz;
    AINT() {}
    AINT(int N) : n(N), V(4 * N, ii{0, 0}), Lz(4 * N, 0) {}

    void prop(int u, int s, int d) {
        if(!Lz[u]) return;
        V[u].first += Lz[u];
        if(s != d) {
            Lz[u << 1] += Lz[u];
            Lz[u << 1 | 1] += Lz[u];
        }
        Lz[u] = 0;
    }

    void update(int p, ii v, int u, int s, int d) {
        if(d < p || p < s) return;
        if(s == d) {
            V[u] = v;
            return;
        }
        update(p, v, u << 1, s, (s + d) >> 1);
        update(p, v, u << 1 | 1, ((s + d) >> 1) + 1, d);
        V[u] = min(V[u << 1], V[u << 1 | 1]);
    }

    void update(int l, int r, int v, int u, int s, int d) {
        prop(u, s, d);
        if(d < l || r < s) return;
        if(l <= s && d <= r) {
            Lz[u] += v;
            prop(u, s, d);
            return;
        }
        update(l, r, v, u << 1, s, (s + d) >> 1);
        update(l, r, v, u << 1 | 1, ((s + d) >> 1) + 1, d);
        V[u] = min(V[u << 1], V[u << 1 | 1]);
    }

    void update(int p, ii v) { update(p, v, 1, 0, n - 1); }
    void update(int l, int r, int v) { 
        if(l >= 0 && r < n) {
            update(l, r, v, 1, 0, n - 1);
            return;
        }
        if(l < 0 && r >= n) {
            update(0, n - 1, v, 1, 0, n - 1);
            return;
        }
        if(l < 0) {
            update(0, r, v, 1, 0, n - 1);
            update(n + l, n - 1, v, 1, 0, n - 1);
        }
        else if(r >= n) {
            update(l, n - 1, v, 1, 0, n - 1);
            update(0, r - n, v, 1, 0, n - 1);
        }
    }

    ii query() { return V[1]; }

    void afis(int u, int s, int d) {
        prop(u, s, d);
        if(s == d) {
            printf("(%d %d) ", V[u].first, V[u].second);
            return;
        }
        afis(u << 1, s, (s + d) >> 1);
        afis(u << 1 | 1, ((s + d) >> 1) + 1, d);
    }
    void afis(string s = "") {
        cout << s;
        afis(1, 0, n - 1);
        cout << "\n";
    }
};

AINT Val;
AINT Block;

const int INF = 1e9;

vi P0;

void init(int k, vi r) {
    int n = int(r.size());
    Val = AINT(n); Block = AINT(n);
    for(int i = 0; i < n; ++i) {
        Val.update(i, {r[i], i});
        Block.update(i, {INF, i});
    }
    vi Re(n, -1);
    int cnt = n;
  //  Val.afis("Val = ");
  //  Block.afis("Block = ");
  //  cout << "\n";
    for(int nr = 0; nr < n; ++nr) {
        while(Val.query().first == 0) {
            int p = Val.query().second; // pozitia asta a devenit 0
  //          cout << "A aparut 0 pe " << p << "\n";
            Val.update(p, p, INF);
            Block.update(p + 1, p + k - 1, 1);
            Block.update(p, p, -INF); // am deblocat un 0 practic
        }
        while(Block.query().first == 0) { /// un 0 care poate fi scos
            int p = Block.query().second;
   //         cout << "Am luat 0-ul de pe " << p << "\n";
            Block.update(p, p, INF); /// nu voi mai face nimic cu el... ever
            Val.update(p - k + 1, p - 1, - 1);
            int dr = min(p + k - 1, 2 * n - 1);
            Block.update(p + 1, dr, -1);
            Re[p] = --cnt;
        }
    //    Val.afis("Val = ");
    //    Block.afis("Block = ");
    //    cout << "Re: ";
    //    for(auto it : Re)
    //        cout << it << " ";
    //    cout << "\n";
    //    cout << "\n";
    }
    P0 = Re;
	return;
}

int compare_plants(int x, int y) {
    if(P0[x] < P0[y]) return -1;
	return 1;
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Incorrect 0 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Incorrect 0 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 31 ms 3412 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -