oj.uz

답안 #999941

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
999941 2024-06-16T10:45:26 Z AdamGS Cultivation (JOI17_cultivation) C++17
65 / 100
 2000 ms 3076 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long double ld;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const ll INF=2e9+7;
const int LIM=307;
pair<ll,ll>T[LIM];
ll tmi[LIM][LIM], tma[LIM][LIM], R, C, n, akt1, akt2, akt3;
vector<pair<ll,ll>>Ci, Di, Ei;
ll solveab(ll a, ll b) {
  ll c=0, d=0, cpd=0;
  while(akt1>0 && Ci[akt1-1].st<=b) --akt1;
  c=Ci[akt1].nd;
  while(akt2>0 && Di[akt2-1].st<=b) --akt2;
  d=Di[akt2].nd;
  ll po=0, ko=(int)Ei.size()-1;
  while(po<ko) {
    ll sr=(po+ko)/2;
    if(Ei[sr].st<b) po=sr+1; else ko=sr;
  }
  if(Ei.size()>0 && Ei[po].st>=b) cpd=max(Ei[po].nd, 0ll);
  return a+b+max(c+d, cpd);
}
ll solvea(ll a) {
  Ci.clear(); Di.clear(); Ei.clear();
  vector<pair<ll,ll>>P;
  rep(i, n) P.pb({T[i].nd, i});
  sort(all(P));
  vector<pair<ll,ll>>Q;
  rep(i, n) {
    Q.pb({max(1ll, T[P[i].nd].st-a), T[P[i].nd].st});
    for(int j=(int)Q.size()-1; j>0; --j) if(Q[j]<Q[j-1]) swap(Q[j], Q[j-1]);
    ll ma=1, mi=0;
    for(auto j : Q) {
      mi=max(mi, j.st-ma-1);
      ma=max(ma, j.nd);
    }
    mi=max(mi, R-ma);
    if(Q[0].st!=1) mi=INF;
    Ci.pb({mi, P[i].st-1});
  }
  Q.clear();
  rep(i, n) {
    Q.pb({max(1ll, T[P[n-i-1].nd].st-a), T[P[n-i-1].nd].st});
    for(int j=(int)Q.size()-1; j>0; --j) if(Q[j]<Q[j-1]) swap(Q[j], Q[j-1]);
    ll ma=1, mi=0;
    for(auto j : Q) {
      mi=max(mi, j.st-ma-1);
      ma=max(ma, j.nd);
    }
    mi=max(mi, R-ma);
    if(Q[0].st!=1) mi=INF;
    Di.pb({mi, C-P[n-i-1].st});
  }
  ll einf=-1;
  rep(xd, 2) {
    rep(i, n) rep(j, n) {
      tmi[i][j]=R+1;
      tma[i][j]=0;
    }
    rep(i, n) {
      for(int j=i+1; j<n; ++j) {
        tmi[i][j]=tmi[i][j-1];
        if(T[P[j].nd].st>=T[P[i].nd].st) tmi[i][j]=min(tmi[i][j], T[P[j].nd].st-a);
      }
    }
    rep(i, n) {
      for(int j=i-1; j>=0; --j) {
        tma[j][i]=tma[j+1][i];
        if(T[P[j].nd].st<=T[P[i].nd].st) tma[j][i]=max(tma[j][i], T[P[j].nd].st);
      }
    }
    rep(j, n) rep(i, j) {
      if(T[P[i].nd].st<=T[P[j].nd].st) {
        if(tmi[i][j-1]<=0) continue;
        else if(tmi[i][j-1]==10*INF || tma[i+1][j]==0) einf=max(einf, abs(P[i].st-P[j].st)-1);
        //Ei.pb({10*INF, abs(P[i].st-P[j].st)-1});
        else if(tmi[i][j-1]-tma[i+1][j]-2>=0) Ei.pb({tmi[i][j-1]-tma[i+1][j]-2, abs(P[i].st-P[j].st)-1});
      }
    }
    reverse(all(P));
  }
  Ei.pb({10*INF, einf});
  sort(all(Ei));
  for(int i=(int)Ei.size()-2; i>=0; --i) Ei[i].nd=max(Ei[i].nd, Ei[i+1].nd);
  vector<ll>A;
  rep(i, n) A.pb(T[i].st);
  sort(all(A));
  ll b=R-A[n-1], apb=0;
  rep(i, n-1) apb=max(apb, A[i+1]-A[i]-1);
  ll ans=INF;
  vector<ll>kol;
  rep(i, n) {
    ll x=R-T[i].st;
    if(x>=b && a+x>=apb) kol.pb(x);
  }
  rep(i, n) rep(j, i) {
    ll x=abs(T[i].st-T[j].st)-1;
    if(x==-1 || x<apb) continue;
    ll y=x-a;
    if(y>=b) kol.pb(y);
  }
  sort(all(kol));
  akt1=Ci.size();
  akt2=Di.size();
  akt3=0;
  ll lst=-INF;
  for(auto i : kol) if(i!=lst) {
    ans=min(ans, solveab(a, i));
    lst=i;
  }
  return ans;
}
ll solve() {
  ll ans=INF;
  rep(i, n) ans=min(ans, solvea(T[i].st-1));
  return ans;
}
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  cin >> R >> C >> n;
  rep(i, n) cin >> T[i].st >> T[i].nd;
  ll ans=INF;
  rep(i, 4) {
    ans=min(ans, solve());
    rep(j, n) T[j]={C-T[j].nd+1, T[j].st};
    swap(R, C);
  }
  cout << ans << '\n';
}

Subtask #1
5.0 / 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 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 22 ms 604 KB Output is correct
19 Correct 2 ms 604 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 9 ms 740 KB Output is correct
22 Correct 134 ms 1116 KB Output is correct
23 Correct 3 ms 600 KB Output is correct
24 Correct 581 ms 1848 KB Output is correct
25 Correct 253 ms 1428 KB Output is correct
26 Correct 1849 ms 2820 KB Output is correct
27 Correct 1956 ms 2804 KB Output is correct
28 Correct 597 ms 2144 KB Output is correct
29 Correct 1921 ms 2832 KB Output is correct
30 Correct 1969 ms 2808 KB Output is correct
31 Correct 1907 ms 2824 KB Output is correct
32 Correct 1869 ms 3076 KB Output is correct

Subtask #3
0 / 15.0

# 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 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 22 ms 604 KB Output is correct
19 Correct 2 ms 604 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 9 ms 740 KB Output is correct
22 Correct 134 ms 1116 KB Output is correct
23 Correct 3 ms 600 KB Output is correct
24 Correct 581 ms 1848 KB Output is correct
25 Correct 253 ms 1428 KB Output is correct
26 Correct 1849 ms 2820 KB Output is correct
27 Correct 1956 ms 2804 KB Output is correct
28 Correct 597 ms 2144 KB Output is correct
29 Correct 1921 ms 2832 KB Output is correct
30 Correct 1969 ms 2808 KB Output is correct
31 Correct 1907 ms 2824 KB Output is correct
32 Correct 1869 ms 3076 KB Output is correct
33 Correct 1899 ms 2828 KB Output is correct
34 Correct 1842 ms 2780 KB Output is correct
35 Execution timed out 2009 ms 2840 KB Time limit exceeded
36 Halted 0 ms 0 KB -

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 2 ms 404 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 3 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 3 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 2 ms 592 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 2 ms 404 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 3 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 3 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 2 ms 592 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 93 ms 860 KB Output is correct
22 Correct 102 ms 856 KB Output is correct
23 Correct 61 ms 960 KB Output is correct
24 Correct 48 ms 856 KB Output is correct
25 Correct 91 ms 1044 KB Output is correct
26 Correct 94 ms 860 KB Output is correct
27 Correct 76 ms 1040 KB Output is correct
28 Correct 98 ms 1112 KB Output is correct
29 Correct 86 ms 860 KB Output is correct
30 Correct 96 ms 856 KB Output is correct
31 Correct 98 ms 856 KB Output is correct
32 Correct 106 ms 860 KB Output is correct
33 Correct 48 ms 856 KB Output is correct
34 Correct 62 ms 1044 KB Output is correct
35 Correct 64 ms 860 KB Output is correct
36 Correct 69 ms 856 KB Output is correct

Subtask #6
0 / 20.0

# 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 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 22 ms 604 KB Output is correct
19 Correct 2 ms 604 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 9 ms 740 KB Output is correct
22 Correct 134 ms 1116 KB Output is correct
23 Correct 3 ms 600 KB Output is correct
24 Correct 581 ms 1848 KB Output is correct
25 Correct 253 ms 1428 KB Output is correct
26 Correct 1849 ms 2820 KB Output is correct
27 Correct 1956 ms 2804 KB Output is correct
28 Correct 597 ms 2144 KB Output is correct
29 Correct 1921 ms 2832 KB Output is correct
30 Correct 1969 ms 2808 KB Output is correct
31 Correct 1907 ms 2824 KB Output is correct
32 Correct 1869 ms 3076 KB Output is correct
33 Correct 1899 ms 2828 KB Output is correct
34 Correct 1842 ms 2780 KB Output is correct
35 Execution timed out 2009 ms 2840 KB Time limit exceeded
36 Halted 0 ms 0 KB -