oj.uz

Submission #912679

# Submission time Handle Problem Language Result Execution time Memory
912679 2024-01-19T17:56:46 Z cadmiumsky Sightseeing in Kyoto (JOI22_kyoto) C++17
0 / 100
 47 ms 856 KB 
#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
using namespace std;

using ll = long long;
using ld = long double;

//#define int ll
#define sz(x) ((int)(x).size())

using pii = pair<int,int>;
using tii = tuple<int,int,int>;

const int inf = 1e9 + 5;

auto compare_frac = [](pii a, pii b) -> bool { return (ll)a.first * b.second < (ll)b.first * a.second; };
auto convoluted_cmpfrac = [](pair<pii,int> a, pair<pii,int> b) -> bool { return compare_frac(a.first, b.first); };

struct Turneu {
  
  set<int> appears;
  int *a;
  
  set<pair<pii, int>, decltype(convoluted_cmpfrac)> heap;
  Turneu(): heap(convoluted_cmpfrac) {;}
  
  int n;
  
  template<class iteratorlmao>
  void insertIt(iteratorlmao it) {
    if(*next(it) == n + 1 || *it == -1) return;
    cerr << *it << '\t' << a[*next(it)] << ' ' << a[*it] << '\n';
    heap.emplace(pii{a[*next(it)] - a[*it], *next(it) - *it}, *it);
  }
  
  template<class iteratorlmao>
  void eraseIt(iteratorlmao it) {
    if(*next(it) == n + 1 || *it == -1) return;
    heap.erase(heap.find(pair<pii,int>{pii{a[*next(it)] - a[*it], *next(it) - *it}, *it}));
  }
  
  
  void init(int _n, int *v) {
    n = _n;
    a = v;
    
    appears.insert(-1);
    appears.insert(n + 1);
    
    for(int i = 1; i <= n; i++)
      insertIt(prev(appears.insert(i).first));
      
    heap.emplace(pii{inf, 1}, -1);
  }
  
  void erase(int p) {
    cerr << "stergem " << p << "\n--\n";
    
    auto it = appears.find(p);
    
    eraseIt(it);
    eraseIt(prev(it));
    
    auto nvit = prev(it);
    appears.erase(it);
    insertIt(nvit);
  }
};

const int nmax = 1e5 + 5;

int A[nmax], B[nmax];

signed main() {
  cin.tie(0) -> sync_with_stdio(0);
  int H, W;
  cin >> H >> W;
  
  for(int i = 1; i <= H; i++) cin >> A[i];
  for(int i = 1; i <= W; i++) cin >> B[i];
  
  Turneu linii, coloane;
  
  linii.init(H, A);
  coloane.init(W, B);
  
  ll cost = 0;
  int x = 1, y = 1;
  
  auto move_col = [&]() {
    int nvy = *next(coloane.appears.begin());
    
    cost += (ll)(nvy - y) * A[x];
    y = nvy;
  };
  
  auto move_row = [&]() {
    int nvx = *next(linii.appears.begin());
    
    cost += (ll)(nvx - x) * B[y];
    x = nvx;
  };
  
  while(x != H || y != W) {
    
    //auto [Ax, Ay] = linii.heap.begin() -> first;
    //auto [Bx, By] = coloane.heap.begin() -> first;
    
    //cerr << Ax << "/" << Ay << '\t' << Bx << "/" << By << '\n';
    
    if(compare_frac(linii.heap.begin() -> first, coloane.heap.begin() -> first))
      cerr << "1\n",
      linii.erase(linii.heap.begin() -> second);
    else
      cerr << "2\n",
      coloane.erase(coloane.heap.begin() -> second);
    
    move_col(); // gen, merge sa le fac pe ambele albeit e retardat
    move_row();
  }
  
  cout << cost << '\n';
}

/**
  Anul asta nu se da centroid
  -- Rugaciunile mele
*/

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 25 ms 624 KB Output is correct
5 Correct 9 ms 348 KB Output is correct
6 Correct 9 ms 484 KB Output is correct
7 Correct 6 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 38 ms 804 KB Output is correct
10 Correct 47 ms 828 KB Output is correct
11 Correct 37 ms 604 KB Output is correct
12 Correct 43 ms 852 KB Output is correct
13 Correct 27 ms 600 KB Output is correct
14 Correct 43 ms 796 KB Output is correct
15 Correct 42 ms 760 KB Output is correct
16 Runtime error 15 ms 856 KB Execution killed with signal 6
17 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 624 KB Output is correct
3 Runtime error 12 ms 824 KB Execution killed with signal 6
4 Halted 0 ms 0 KB -

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 25 ms 624 KB Output is correct
5 Correct 9 ms 348 KB Output is correct
6 Correct 9 ms 484 KB Output is correct
7 Correct 6 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 38 ms 804 KB Output is correct
10 Correct 47 ms 828 KB Output is correct
11 Correct 37 ms 604 KB Output is correct
12 Correct 43 ms 852 KB Output is correct
13 Correct 27 ms 600 KB Output is correct
14 Correct 43 ms 796 KB Output is correct
15 Correct 42 ms 760 KB Output is correct
16 Runtime error 15 ms 856 KB Execution killed with signal 6
17 Halted 0 ms 0 KB -