oj.uz

Submission #447136

# Submission time Handle Problem Language Result Execution time Memory
447136 2021-07-24T16:39:30 Z alan8585 Cultivation (JOI17_cultivation) C++14
100 / 100
 222 ms 3736 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 || T[top].F <= R - rest));
            }
            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 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 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 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 460 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 1 ms 384 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 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 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 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 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 460 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 1 ms 384 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 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 2 ms 972 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 716 KB Output is correct
22 Correct 8 ms 1484 KB Output is correct
23 Correct 1 ms 588 KB Output is correct
24 Correct 25 ms 2288 KB Output is correct
25 Correct 12 ms 1876 KB Output is correct
26 Correct 72 ms 3276 KB Output is correct
27 Correct 73 ms 3244 KB Output is correct
28 Correct 25 ms 2284 KB Output is correct
29 Correct 73 ms 3372 KB Output is correct
30 Correct 77 ms 3260 KB Output is correct
31 Correct 81 ms 3256 KB Output is correct
32 Correct 74 ms 3316 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 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 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 460 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 1 ms 384 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 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 2 ms 972 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 716 KB Output is correct
22 Correct 8 ms 1484 KB Output is correct
23 Correct 1 ms 588 KB Output is correct
24 Correct 25 ms 2288 KB Output is correct
25 Correct 12 ms 1876 KB Output is correct
26 Correct 72 ms 3276 KB Output is correct
27 Correct 73 ms 3244 KB Output is correct
28 Correct 25 ms 2284 KB Output is correct
29 Correct 73 ms 3372 KB Output is correct
30 Correct 77 ms 3260 KB Output is correct
31 Correct 81 ms 3256 KB Output is correct
32 Correct 74 ms 3316 KB Output is correct
33 Correct 56 ms 3232 KB Output is correct
34 Correct 50 ms 3224 KB Output is correct
35 Correct 81 ms 3396 KB Output is correct
36 Correct 89 ms 3348 KB Output is correct
37 Correct 88 ms 3420 KB Output is correct
38 Correct 88 ms 3408 KB Output is correct
39 Correct 85 ms 3396 KB Output is correct
40 Correct 87 ms 3336 KB Output is correct
41 Correct 61 ms 3208 KB Output is correct
42 Correct 71 ms 3268 KB Output is correct
43 Correct 86 ms 3336 KB Output is correct
44 Correct 83 ms 3424 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 460 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 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 460 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 460 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
20.0 / 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 460 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 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 460 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 460 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 1340 KB Output is correct
24 Correct 11 ms 1332 KB Output is correct
25 Correct 16 ms 1356 KB Output is correct
26 Correct 11 ms 1356 KB Output is correct
27 Correct 10 ms 1348 KB Output is correct
28 Correct 16 ms 1356 KB Output is correct
29 Correct 16 ms 1356 KB Output is correct
30 Correct 16 ms 1356 KB Output is correct
31 Correct 17 ms 1400 KB Output is correct
32 Correct 15 ms 1396 KB Output is correct
33 Correct 11 ms 1228 KB Output is correct
34 Correct 14 ms 1356 KB Output is correct
35 Correct 14 ms 1356 KB Output is correct
36 Correct 12 ms 1228 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 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 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 460 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 1 ms 384 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 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 2 ms 972 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 716 KB Output is correct
22 Correct 8 ms 1484 KB Output is correct
23 Correct 1 ms 588 KB Output is correct
24 Correct 25 ms 2288 KB Output is correct
25 Correct 12 ms 1876 KB Output is correct
26 Correct 72 ms 3276 KB Output is correct
27 Correct 73 ms 3244 KB Output is correct
28 Correct 25 ms 2284 KB Output is correct
29 Correct 73 ms 3372 KB Output is correct
30 Correct 77 ms 3260 KB Output is correct
31 Correct 81 ms 3256 KB Output is correct
32 Correct 74 ms 3316 KB Output is correct
33 Correct 56 ms 3232 KB Output is correct
34 Correct 50 ms 3224 KB Output is correct
35 Correct 81 ms 3396 KB Output is correct
36 Correct 89 ms 3348 KB Output is correct
37 Correct 88 ms 3420 KB Output is correct
38 Correct 88 ms 3408 KB Output is correct
39 Correct 85 ms 3396 KB Output is correct
40 Correct 87 ms 3336 KB Output is correct
41 Correct 61 ms 3208 KB Output is correct
42 Correct 71 ms 3268 KB Output is correct
43 Correct 86 ms 3336 KB Output is correct
44 Correct 83 ms 3424 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 460 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 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 1 ms 588 KB Output is correct
56 Correct 1 ms 460 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 460 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 1340 KB Output is correct
68 Correct 11 ms 1332 KB Output is correct
69 Correct 16 ms 1356 KB Output is correct
70 Correct 11 ms 1356 KB Output is correct
71 Correct 10 ms 1348 KB Output is correct
72 Correct 16 ms 1356 KB Output is correct
73 Correct 16 ms 1356 KB Output is correct
74 Correct 16 ms 1356 KB Output is correct
75 Correct 17 ms 1400 KB Output is correct
76 Correct 15 ms 1396 KB Output is correct
77 Correct 11 ms 1228 KB Output is correct
78 Correct 14 ms 1356 KB Output is correct
79 Correct 14 ms 1356 KB Output is correct
80 Correct 12 ms 1228 KB Output is correct
81 Correct 100 ms 2680 KB Output is correct
82 Correct 97 ms 2556 KB Output is correct
83 Correct 137 ms 2988 KB Output is correct
84 Correct 71 ms 2760 KB Output is correct
85 Correct 208 ms 3576 KB Output is correct
86 Correct 210 ms 3512 KB Output is correct
87 Correct 192 ms 3572 KB Output is correct
88 Correct 157 ms 3392 KB Output is correct
89 Correct 175 ms 3400 KB Output is correct
90 Correct 109 ms 3012 KB Output is correct
91 Correct 215 ms 3396 KB Output is correct
92 Correct 222 ms 3604 KB Output is correct
93 Correct 186 ms 3356 KB Output is correct
94 Correct 165 ms 3380 KB Output is correct
95 Correct 210 ms 3736 KB Output is correct
96 Correct 216 ms 3436 KB Output is correct
97 Correct 179 ms 3544 KB Output is correct
98 Correct 65 ms 3268 KB Output is correct