oj.uz

답안 #835994

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
835994 2023-08-24T04:11:49 Z maomao90 식물 비교 (IOI20_plants) C++17
44 / 100
 1022 ms 30112 KB 
// I can do all things through Christ who strengthens me
// Philippians 4:13

#include "plants.h"
#include <bits/stdc++.h>
using namespace std;

#define REP(i, j, k) for (int i = j; i < (k); i++)
#define RREP(i, j, k) for (int i = j; i >= (k); i--)

template <class T>
inline bool mnto(T &a, const T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T &a, const T b) {return a < b ? a = b, 1 : 0;}

typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
#define ALL(x) x.begin(), x.end()
#define SZ(x) (int) x.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef tuple<int, int, int> iii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005;
const int MAXN = 200005;

int n, k;
vi r;
int bad[MAXN];
bool vis[MAXN];
int h[MAXN];

#define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
struct SegTree {
    pair<ii, int> mx[MAXN * 4];
    ii lz[MAXN * 4];
    void init(int u = 1, int lo = 0, int hi = n - 1) {
        lz[u] = {0, 0};
        if (lo == hi) {
            mx[u] = {{r[lo], 0}, lo};
            return;
        }
        MLR;
        init(lc, lo, mid);
        init(rc, mid + 1, hi);
        mx[u] = max(mx[lc], mx[rc]);
    }
    void apply(ii x, int u, int lo, int hi) {
        mx[u].FI.FI += x.FI;
        mx[u].FI.SE += x.SE;
        lz[u].FI += x.FI;
        lz[u].SE += x.SE;
    }
    void propo(int u, int lo, int hi) {
        if (lz[u] == ii(0, 0)) {
            return;
        }
        MLR;
        apply(lz[u], lc, lo, mid);
        apply(lz[u], rc, mid + 1, hi);
        lz[u] = {0, 0};
    }
    void incre(int s, int e, ii x, int u = 1, int lo = 0, int hi = n - 1) {
        if (s >= n) {
            incre(s - n, e - n, x);
            return;
        }
        if (e >= n) {
            incre(s, n - 1, x);
            incre(0, e - n, x);
            return;
        }
        if (lo >= s && hi <= e) {
            apply(x, u, lo, hi);
            return;
        }
        MLR;
        propo(u, lo, hi);
        if (s <= mid) {
            incre(s, e, x, lc, lo, mid);
        }
        if (e > mid) {
            incre(s, e, x, rc, mid + 1, hi);
        }
        mx[u] = max(mx[lc], mx[rc]);
    }
    pair<ii, int> qmx(int s, int e, int u = 1, int lo = 0, int hi = n - 1) {
        if (s >= n) {
            return qmx(s - n, e - n);
        }
        if (e >= n) {
            return max(qmx(s, n - 1), qmx(0, e - n));
        }
        if (lo >= s && hi <= e) {
            return mx[u];
        }
        MLR;
        propo(u, lo, hi);
        pair<ii, int> res = {{-INF, -INF}, -INF};
        if (s <= mid) {
            mxto(res, qmx(s, e, lc, lo, mid));
        }
        if (e > mid) {
            mxto(res, qmx(s, e, rc, mid + 1, hi));
        }
        return res;
    }
} st1, st2;

void init(int _k, vi _r) {
    k = _k; r = _r;
    n = SZ(r);
    st1.init();
    st2.init();
    REP (i, 0, n) {
        if (r[i] == k - 1) {
            st1.incre(i + 1, i + k - 1, {0, -1});
            st2.incre(i, i, {-INF, -INF});
            /*
            REP (j, i + 1, i + k) {
                bad[j % n]++;
            }
            */
        }
    }
    REP (z, 0, n) {
        /*
        int id = -1;
        REP (i, 0, n) {
            if (vis[i]) {
                continue;
            }
            if (r[i] == k - 1 && !bad[i]) {
                id = i;
                break;
            }
        }
        */
        auto [tmp, id] = st1.qmx(0, n - 1);
        cerr << z << ' ' << tmp.FI << ' ' << tmp.SE << ' ' << id << '\n';
        h[id] = z;
        st1.incre(id, id, {-INF, -INF});
        st1.incre(id + 1, id + k - 1, {0, 1});
        /*
        vis[id] = 1;
        REP (j, id + 1, id + k) {
            bad[j % n]--;
        }
        */
        st1.incre(id - k + 1 + n, id - 1 + n, {1, 0});
        st2.incre(id - k + 1 + n, id - 1 + n, {1, 0});
        auto [v, u] = st2.qmx(id - k + 1 + n, id - 1 + n);
        while (v.FI == k - 1) {
            st1.incre(u + 1, u + k - 1, {0, -1});
            st2.incre(u, u, {-INF, -INF});
            tie(v, u) = st2.qmx(id - k + 1 + n, id - 1 + n);
        }
        /*
        RREP (ti, id - 1, id - k + 1) {
            int i = (ti + n) % n;
            r[i]++;
            if (r[i] == k - 1) {
                REP (j, i + 1, i + k) {
                    bad[j % n]++;
                }
            }
        }
        */
    }
	return;
}

int compare_plants(int x, int y) {
    return h[x] > h[y] ? 1 : -1;
}

Compilation message

plants.cpp: In member function 'void SegTree::init(int, int, int)':
plants.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
plants.cpp:55:9: note: in expansion of macro 'MLR'
   55 |         MLR;
      |         ^~~
plants.cpp: In member function 'void SegTree::propo(int, int, int)':
plants.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
plants.cpp:70:9: note: in expansion of macro 'MLR'
   70 |         MLR;
      |         ^~~
plants.cpp: In member function 'void SegTree::incre(int, int, ii, int, int, int)':
plants.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
plants.cpp:89:9: note: in expansion of macro 'MLR'
   89 |         MLR;
      |         ^~~
plants.cpp: In member function 'std::pair<std::pair<int, int>, int> SegTree::qmx(int, int, int, int, int)':
plants.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
plants.cpp:109:9: note: in expansion of macro 'MLR'
  109 |         MLR;
      |         ^~~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Incorrect 1 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 5 ms 468 KB Output is correct
7 Correct 54 ms 5708 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Correct 55 ms 5708 KB Output is correct
11 Correct 55 ms 5712 KB Output is correct
12 Correct 49 ms 5836 KB Output is correct
13 Correct 53 ms 5708 KB Output is correct

Subtask #3
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 5 ms 468 KB Output is correct
7 Correct 54 ms 5708 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Correct 55 ms 5708 KB Output is correct
11 Correct 55 ms 5712 KB Output is correct
12 Correct 49 ms 5836 KB Output is correct
13 Correct 53 ms 5708 KB Output is correct
14 Correct 109 ms 8176 KB Output is correct
15 Correct 965 ms 29156 KB Output is correct
16 Correct 114 ms 8276 KB Output is correct
17 Correct 997 ms 30056 KB Output is correct
18 Correct 584 ms 29680 KB Output is correct
19 Correct 582 ms 30060 KB Output is correct
20 Correct 829 ms 30112 KB Output is correct

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 44 ms 4972 KB Output is correct
4 Correct 444 ms 29132 KB Output is correct
5 Correct 586 ms 29388 KB Output is correct
6 Correct 769 ms 29620 KB Output is correct
7 Correct 943 ms 29820 KB Output is correct
8 Correct 1022 ms 30004 KB Output is correct
9 Correct 526 ms 29312 KB Output is correct
10 Correct 516 ms 29360 KB Output is correct
11 Correct 336 ms 29132 KB Output is correct
12 Correct 407 ms 29388 KB Output is correct
13 Correct 603 ms 29420 KB Output is correct

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Incorrect 1 ms 340 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Incorrect 1 ms 340 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Incorrect 1 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -