oj.uz

Submission #447135

# Submission time Handle Problem Language Result Execution time Memory
447135 2021-07-24T16:35:12 Z alan8585 Cultivation (JOI17_cultivation) C++14
60 / 100
 91 ms 3436 KB 
#pragma GCC optimize ("Ofast","unroll-loops")
#include <bits/stdc++.h>
#define pb push_back
#define eb emplace_back
#define MP make_pair
#define F first
#define S second
#define setpre(a) cout.precision(a),cout<<fixed;
#define ALL(a) a.begin(),a.end()
#define MEM(a,b) memset(a,b,sizeof a)
#define Tie ios::sync_with_stdio(0),cin.tie(0);
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<ld,ld> pdd;

const int MAXN = 310;
const ll INF = 1LL << 61;
ll R, C, n, L[MAXN][MAXN], L_lim[MAXN][MAXN], R_lim[MAXN][MAXN], dis[MAXN][MAXN], ans = INF;
ll Ur[MAXN], Dr[MAXN], Ul[MAXN], Dl[MAXN];
vector<pll> v;

int main() {Tie
    cin >> R >> C >> n;
    v.resize(n);
    ll rest = 0;
    for(pll &i : v)
        cin >> i.F >> i.S, rest = max(rest, i.F);
    vector<pll> tv = v;
    sort(ALL(tv));
    ll minm = 0;
    for(int i = 0; i + 1 < n; i++)
        minm = max(minm, tv[i + 1].F - tv[i].F - 1);

    for(int i = 0; i < n; i++) {
        Dl[i] = Dr[i] = Ul[i] = Ur[i] = INF;
        {
            ll uln = 0;
            ll urn = R + 1;
            ll dln = 0;
            ll drn = R + 1;
            for(int j = 0; j < n; j++) {
                if(i == j) continue;
                if(v[i].S < v[j].S) {
                    if(v[i].F < v[j].F) {
                        drn = min(drn, v[j].F);
                    } else if(v[i].F > v[j].F) {
                        dln = max(dln, v[j].F);
                    } else {
                        Dl[i] = Dr[i] = -1;
                    }
                } else if(v[i].S > v[j].S) {
                    if(v[i].F < v[j].F) {
                        urn = min(urn, v[j].F);
                    } else if(v[i].F > v[j].F) {
                        uln = max(uln, v[j].F);
                    } else {
                        Ul[i] = Ur[i] = -1;
                    }
                }
            }
            if(Dl[i] != -1) {
                if(dln != 0) {
                    Dr[i] = drn - dln - 1;
                } else {
                    Dr[i] = INF;
                }
                if(drn != R + 1) {
                    Dl[i] = drn - dln - 1;
                } else {
                    Dl[i] = INF;
                }
            }
            if(Ul[i] != -1) {
                if(uln != 0) {
                    Ur[i] = urn - uln - 1;
                } else {
                    Ur[i] = INF;
                }
                if(urn != R + 1) {
                    Ul[i] = urn - uln - 1;
                } else {
                    Ul[i] = INF;
                }
            }
        }

        for(int j = i + 1; j < n; j++) {
            ll l = min(v[i].F, v[j].F);
            ll r = max(v[i].F, v[j].F);
            ll u = min(v[i].S, v[j].S);
            ll d = max(v[i].S, v[j].S);
            L[i][j] = r - l;
            dis[i][j] = d - u - 1;
            ll ln = 0;
            ll rn = R + 1;
            for(int k = 0; k < n; k++) {
                if(u < v[k].S && v[k].S < d) {
                    if(l <= v[k].F && v[k].F <= r)
                        L_lim[i][j] = R_lim[i][j] = -1;
                    else if(v[k].F < l)
                        ln = max(ln, v[k].F);
                    else if(v[k].F > l)
                        rn = min(rn, v[k].F);
                }
            }
            if(L_lim[i][j] == -1) continue;
            if(rn != R + 1)
                L_lim[i][j] = rn - ln - 1;
            else
                L_lim[i][j] = INF;
            if(ln != 0)
                R_lim[i][j] = rn - ln - 1;
            else
                R_lim[i][j] = INF;
        }
    }

    vector<ll> Lm, Rm;
    for(int i = 0; i < n; i++)
        Lm.pb(v[i].F - 1);
    sort(ALL(Lm)), Lm.resize(unique(ALL(Lm)) - Lm.begin());
    sort(ALL(Rm)), Rm.resize(unique(ALL(Rm)) - Rm.begin());

    for(ll lm : Lm) {
        map<ll, ll> m, dm, um;
        m[0] = 1;
        dm[0] = 1;
        um[0] = 1;
        vector<pair<ll, pll>> T;
        for(int j = 0; j < n; j++) {
            T.pb(MP(R - v[j].F, MP(0, 0)));
        }
        T.pb(MP(minm - lm, MP(0, 0)));
        for(int i = 0; i < n; i++) {
            if(Dr[i] != -1 && Dl[i] > lm) {
                dm[C - v[i].S]++;
                if(Dl[i] == Dr[i] && Dr[i] != INF)
                    T.pb(MP(Dr[i] - lm, MP(1, C - v[i].S)));
                else if(Dr[i] != INF)
                    T.pb(MP(Dr[i], MP(1, C - v[i].S)));
            }
            if(Ur[i] != -1 && Ul[i] > lm) {
                um[v[i].S - 1]++;
                if(Ul[i] == Ur[i] && Ur[i] != INF)
                    T.pb(MP(Ur[i] - lm, MP(2, v[i].S - 1)));
                else if(Ur[i] != INF)
                    T.pb(MP(Ur[i], MP(2, v[i].S - 1)));
            }
            for(int j = i + 1; j < n; j++) {
                if(L_lim[i][j] <= lm) continue;
                if(dis[i][j] <= 0) continue;
                T.pb(MP(L[i][j] - lm, MP(0, dis[i][j])));
                if(L_lim[i][j] == R_lim[i][j] && R_lim[i][j] != INF)
                    T.pb(MP(R_lim[i][j] - lm, MP(0, -dis[i][j])));
                else if(R_lim[i][j] != INF)
                    T.pb(MP(R_lim[i][j], MP(0, -dis[i][j])));
            }
        }
        sort(ALL(T));
        // cout << lm << '\n';
        // for(auto i : T) cout << i.S.F << ' ' << i.F << ' ' << i.S.S << '\n';
        int flag = 0, top = 0;
        while(top < (int)T.size()) {
            if(flag || T[top].F <= R - rest) {
                do {
                    if(T[top].S.F == 0) {
                        if(T[top].S.S < 0) {
                            m[-T[top].S.S]--;
                        } else if(T[top].S.S > 0) {
                            m[T[top].S.S]++;
                        }
                    } else if(T[top].S.F == 1) {
                        dm[T[top].S.S]--;
                    } else {
                        um[T[top].S.S]--;
                    }
                    top++;
                } while(top < (int)T.size() && T[top].F == T[top - 1].F);
            }
            flag = 1;
            while(m.rbegin() -> S == 0) {
                auto p = m.end(); p--;
                m.erase(p);
            }
            while(dm.rbegin() -> S == 0) {
                auto p = dm.end(); p--;
                dm.erase(p);
            }
            while(um.rbegin() -> S == 0) {
                auto p = um.end(); p--;
                um.erase(p);
            }
            ll rm = 0;
            if(top - 1 >= 0)
                rm = max(rm, T[top - 1].F);
                // cout << lm << ' ' << rm << ' ' << m.rbegin() -> F << ' ' << dm.rbegin() -> F << ' ' << um.rbegin() -> F << '\n';
            if(lm + rm >= minm && rm >= R - rest) {
                ll tans = lm + rm + max(m.rbegin() -> F, dm.rbegin() -> F + um.rbegin() -> F);
                ans = min(ans, tans);
            }
        }
    }
    cout << ans << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 316 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 320 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 316 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 316 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 320 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 316 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 3 ms 996 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 2 ms 836 KB Output is correct
22 Correct 8 ms 1612 KB Output is correct
23 Correct 1 ms 576 KB Output is correct
24 Correct 24 ms 2360 KB Output is correct
25 Correct 12 ms 1784 KB Output is correct
26 Correct 72 ms 3328 KB Output is correct
27 Correct 71 ms 3276 KB Output is correct
28 Correct 27 ms 2380 KB Output is correct
29 Correct 72 ms 3280 KB Output is correct
30 Correct 73 ms 3316 KB Output is correct
31 Correct 75 ms 3332 KB Output is correct
32 Correct 73 ms 3348 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 316 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 320 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 316 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 3 ms 996 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 2 ms 836 KB Output is correct
22 Correct 8 ms 1612 KB Output is correct
23 Correct 1 ms 576 KB Output is correct
24 Correct 24 ms 2360 KB Output is correct
25 Correct 12 ms 1784 KB Output is correct
26 Correct 72 ms 3328 KB Output is correct
27 Correct 71 ms 3276 KB Output is correct
28 Correct 27 ms 2380 KB Output is correct
29 Correct 72 ms 3280 KB Output is correct
30 Correct 73 ms 3316 KB Output is correct
31 Correct 75 ms 3332 KB Output is correct
32 Correct 73 ms 3348 KB Output is correct
33 Correct 55 ms 3300 KB Output is correct
34 Correct 48 ms 3236 KB Output is correct
35 Correct 80 ms 3396 KB Output is correct
36 Correct 89 ms 3396 KB Output is correct
37 Correct 88 ms 3320 KB Output is correct
38 Correct 88 ms 3396 KB Output is correct
39 Correct 86 ms 3408 KB Output is correct
40 Correct 91 ms 3316 KB Output is correct
41 Correct 60 ms 3268 KB Output is correct
42 Correct 71 ms 3420 KB Output is correct
43 Correct 85 ms 3436 KB Output is correct
44 Correct 81 ms 3384 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 572 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 2 ms 588 KB Output is correct
12 Correct 2 ms 588 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 2 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 572 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 2 ms 588 KB Output is correct
12 Correct 2 ms 588 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 2 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 14 ms 1356 KB Output is correct
22 Correct 17 ms 1400 KB Output is correct
23 Correct 12 ms 1344 KB Output is correct
24 Correct 12 ms 1228 KB Output is correct
25 Correct 17 ms 1356 KB Output is correct
26 Incorrect 11 ms 1396 KB Output isn't correct
27 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 316 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 320 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 316 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 3 ms 996 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 2 ms 836 KB Output is correct
22 Correct 8 ms 1612 KB Output is correct
23 Correct 1 ms 576 KB Output is correct
24 Correct 24 ms 2360 KB Output is correct
25 Correct 12 ms 1784 KB Output is correct
26 Correct 72 ms 3328 KB Output is correct
27 Correct 71 ms 3276 KB Output is correct
28 Correct 27 ms 2380 KB Output is correct
29 Correct 72 ms 3280 KB Output is correct
30 Correct 73 ms 3316 KB Output is correct
31 Correct 75 ms 3332 KB Output is correct
32 Correct 73 ms 3348 KB Output is correct
33 Correct 55 ms 3300 KB Output is correct
34 Correct 48 ms 3236 KB Output is correct
35 Correct 80 ms 3396 KB Output is correct
36 Correct 89 ms 3396 KB Output is correct
37 Correct 88 ms 3320 KB Output is correct
38 Correct 88 ms 3396 KB Output is correct
39 Correct 86 ms 3408 KB Output is correct
40 Correct 91 ms 3316 KB Output is correct
41 Correct 60 ms 3268 KB Output is correct
42 Correct 71 ms 3420 KB Output is correct
43 Correct 85 ms 3436 KB Output is correct
44 Correct 81 ms 3384 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 588 KB Output is correct
50 Correct 1 ms 460 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 572 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 2 ms 588 KB Output is correct
56 Correct 2 ms 588 KB Output is correct
57 Correct 1 ms 460 KB Output is correct
58 Correct 1 ms 460 KB Output is correct
59 Correct 1 ms 460 KB Output is correct
60 Correct 2 ms 588 KB Output is correct
61 Correct 1 ms 588 KB Output is correct
62 Correct 1 ms 460 KB Output is correct
63 Correct 1 ms 460 KB Output is correct
64 Correct 1 ms 460 KB Output is correct
65 Correct 14 ms 1356 KB Output is correct
66 Correct 17 ms 1400 KB Output is correct
67 Correct 12 ms 1344 KB Output is correct
68 Correct 12 ms 1228 KB Output is correct
69 Correct 17 ms 1356 KB Output is correct
70 Incorrect 11 ms 1396 KB Output isn't correct
71 Halted 0 ms 0 KB -