oj.uz

답안 #987226

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
987226 2024-05-22T11:37:59 Z AdamGS Sky Walking (IOI19_walk) C++17
33 / 100
 1591 ms 134916 KB 
#include "walk.h"
#include<bits/stdc++.h>
using namespace std;
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=1e18+7;
const int LIM=1e5+7;
vector<pair<ll,ll>>V[10*LIM];
set<pair<ll,ll>>S;
map<pair<ll,ll>,ll>mp;
ll tr[4*LIM], odl[10*LIM], n, N=1, akt;
void upd(int l, int r, ll x) {
  l+=N; r+=N;
  tr[l]=max(tr[l], x);
  tr[r]=max(tr[r], x);
  while(l/2!=r/2) {
    if(l%2==0) tr[l+1]=max(tr[l+1], x);
    if(r%2==1) tr[r-1]=max(tr[r-1], x);
    l/=2; r/=2;
  }
}
ll cnt(int v) {
  v+=N;
  ll ans=tr[v];
  while(v) {
    ans=max(ans, tr[v]);
    v/=2;
  }
  return ans;
}
void kraw(pair<ll,ll>a, pair<ll,ll>b) {
  if(mp.find(a)==mp.end()) {
    mp[a]=akt++;
    S.insert({a.nd, a.st});
  }
  if(mp.find(b)==mp.end()) {
    mp[b]=akt++;
    if(S.find({b.nd, b.st})==S.end() && b.nd!=0) {
      auto it=S.lower_bound({b.nd, b.st});
      if(it!=S.end()) {
        auto x=*it;
        if(x.st==b.nd) kraw(b, {x.nd, x.st});
      }
      if(it!=S.begin()) {
        --it;
        auto x=*it;
        if(x.st==b.nd) kraw(b, {x.nd, x.st});
      }
    }
    S.insert({b.nd, b.st});
  }
  ll o=abs(a.st-b.st)+abs(a.nd-b.nd);
  V[mp[a]].pb({mp[b], o});
  V[mp[b]].pb({mp[a], o});
}
ll min_distance(vector<int>x, vector<int>h, vector<int>l, vector<int>r, vector<int>y, int s, int g) {
  n=x.size();
  while(N<n) N*=2;
  vector<pair<ll,pair<ll,ll>>>P;
  rep(i, l.size()) P.pb({y[i], {l[i], r[i]}});
  mp[{x[s], 0}]=0;
  mp[{x[g], 0}]=1;
  akt=2;
  sort(all(P));
  for(auto i : P) {
    kraw({x[i.nd.st], i.st}, {x[i.nd.nd], i.st});
    kraw({x[i.nd.st], i.st}, {x[i.nd.st], cnt(i.nd.st)});
    kraw({x[i.nd.nd], i.st}, {x[i.nd.nd], cnt(i.nd.nd)});
    upd(i.nd.st, i.nd.nd, i.st);
  }
  rep(i, akt+1) odl[i]=INF;
  priority_queue<pair<ll,ll>>q;
  q.push({0, 0});
  while(!q.empty()) {
    ll o=-q.top().st, p=q.top().nd; q.pop();
    if(odl[p]<=o) continue;
    odl[p]=o;
    for(auto i : V[p]) q.push({-o-i.nd, i.st});
  }
  if(odl[1]==INF) return -1;
  return odl[1];
}

Compilation message

walk.cpp: In function 'll min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:5:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(a, b) for(int a = 0; a < (b); ++a)
      |                                    ^
walk.cpp:64:3: note: in expansion of macro 'rep'
   64 |   rep(i, l.size()) P.pb({y[i], {l[i], r[i]}});
      |   ^~~

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 15 ms 23900 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 15 ms 23896 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 180 ms 44628 KB Output is correct
2 Correct 1280 ms 120480 KB Output is correct
3 Correct 1415 ms 122948 KB Output is correct
4 Correct 1569 ms 127844 KB Output is correct
5 Correct 1574 ms 134132 KB Output is correct
6 Correct 1538 ms 127092 KB Output is correct
7 Correct 634 ms 79484 KB Output is correct
8 Correct 704 ms 93668 KB Output is correct
9 Correct 1234 ms 124496 KB Output is correct
10 Correct 548 ms 86392 KB Output is correct
11 Correct 24 ms 25936 KB Output is correct

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 180 ms 44628 KB Output is correct
2 Correct 1280 ms 120480 KB Output is correct
3 Correct 1415 ms 122948 KB Output is correct
4 Correct 1569 ms 127844 KB Output is correct
5 Correct 1574 ms 134132 KB Output is correct
6 Correct 1538 ms 127092 KB Output is correct
7 Correct 634 ms 79484 KB Output is correct
8 Correct 704 ms 93668 KB Output is correct
9 Correct 1234 ms 124496 KB Output is correct
10 Correct 548 ms 86392 KB Output is correct
11 Correct 24 ms 25936 KB Output is correct
12 Correct 1528 ms 122616 KB Output is correct
13 Correct 1130 ms 126208 KB Output is correct
14 Correct 1458 ms 133792 KB Output is correct
15 Correct 1211 ms 123776 KB Output is correct
16 Correct 1072 ms 115300 KB Output is correct
17 Correct 1319 ms 130096 KB Output is correct
18 Correct 1194 ms 123996 KB Output is correct
19 Correct 990 ms 112956 KB Output is correct
20 Correct 650 ms 78104 KB Output is correct
21 Correct 38 ms 29780 KB Output is correct
22 Correct 862 ms 105520 KB Output is correct
23 Correct 795 ms 103872 KB Output is correct
24 Correct 629 ms 93076 KB Output is correct
25 Correct 755 ms 99652 KB Output is correct
26 Correct 534 ms 89456 KB Output is correct
27 Correct 1591 ms 134916 KB Output is correct
28 Correct 1232 ms 125180 KB Output is correct
29 Correct 1457 ms 126640 KB Output is correct
30 Correct 666 ms 79164 KB Output is correct
31 Correct 1247 ms 120528 KB Output is correct
32 Correct 491 ms 86968 KB Output is correct
33 Correct 466 ms 89560 KB Output is correct
34 Correct 607 ms 94912 KB Output is correct
35 Correct 565 ms 97852 KB Output is correct
36 Correct 636 ms 92828 KB Output is correct
37 Correct 527 ms 87736 KB Output is correct
38 Correct 542 ms 92868 KB Output is correct
39 Correct 646 ms 104888 KB Output is correct
40 Correct 455 ms 92312 KB Output is correct
41 Correct 526 ms 89352 KB Output is correct

Subtask #5
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 15 ms 23900 KB Output isn't correct
2 Halted 0 ms 0 KB -