oj.uz

Submission #986721

# Submission time Handle Problem Language Result Execution time Memory
986721 2024-05-21T05:22:43 Z vjudge1 The Potion of Great Power (CEOI20_potion) C++17
49 / 100
 1771 ms 222400 KB 
#include<bits/stdc++.h>
#pragma GCC optimize(2)
using namespace std;
int SSZ=20;
vector<pair<int,int>>C[100100];
map<int,set<int>> temps[100100], prooc[100100];
set<int>cur[100100];
int h[100100],ord[100100],rev[100100],CC;
void init(int N, int D, int H[]) {
    vector<int>v;
    for(int i=0;i<N;i++) h[i]=H[i],
        v.push_back(i),temps[i][-1];
    sort(v.begin(),v.end(),[](int a,int b){return h[a]<h[b];});
    for(int i=0;i<N;i++)
        rev[ord[v[i]]=i]=v[i];
}
void curseChanges(int U, int A[], int B[]) {
    for(int i=0;i<U;i++){
        A[i]=ord[A[i]];
        B[i]=ord[B[i]];
        if(cur[A[i]].count(B[i]))
            cur[A[i]].erase(B[i]),
            cur[B[i]].erase(A[i]);
        else cur[A[i]].insert(B[i]),
            cur[B[i]].insert(A[i]);
        C[A[i]].push_back({i,B[i]});
        C[B[i]].push_back({i,A[i]});
        if(C[A[i]].size()%SSZ==0)
            temps[A[i]][i]=cur[A[i]];
        if(C[B[i]].size()%SSZ==0)
            temps[B[i]][i]=cur[B[i]];
    }
    for(auto&i:cur)
        i.clear();
}
int calc(vector<int>A,vector<int>B){
    int l=0,r=0,ans=1e9;
    while(l<A.size()&&r<B.size()){
        ans=min(ans,abs(A[l]-B[r]));
        if(A[l]<B[r])l++;
        else r++;
    }
    return ans;
}
int question(int x, int y, int v) {
    x=ord[x],y=ord[y];
    vector<int>A,B;
    auto it=--temps[x].lower_bound(v);
    set<int>X;
    swap(X,it->second);
    auto it2=lower_bound(C[x].begin(),C[x].end(),make_pair(it->first+1,0));
    int I=it2-C[x].begin(),begI=I;
    for(;I<C[x].size()&&C[x][I].first<v;I++)
        if(X.count(C[x][I].second))
            X.erase(C[x][I].second);
        else X.insert(C[x][I].second);
    for(auto i:X)A.push_back(h[rev[i]]);
    while(--I>=begI)if(X.count(C[x][I].second))
        X.erase(C[x][I].second);
    else X.insert(C[x][I].second);
    swap(X,it->second);
    it=--temps[y].upper_bound(v);
    swap(X,it->second);
    it2=lower_bound(C[y].begin(),C[y].end(),make_pair(it->first+1,0));
    I=it2-C[y].begin(),begI=I;
    for(;I<C[y].size()&&C[y][I].first<v;I++)
        if(X.count(C[y][I].second))
            X.erase(C[y][I].second);
        else X.insert(C[y][I].second);
    for(auto i:X)B.push_back(h[rev[i]]);
    while(--I>=begI)if(X.count(C[y][I].second))
        X.erase(C[y][I].second);
    else X.insert(C[y][I].second);
    swap(X,it->second);
    return calc(A,B);
}
#ifdef ONLINE_JUDGE
int main() {
  freopen("input.txt", "r", stdin);
  int N, D, U, Q;
  std::ios::sync_with_stdio(false); std::cin.tie(NULL);
  std::cin >> N >> D >> U >> Q;

  int *F = new int[N];
  for (int i=0; i<N; i++)
    std::cin >> F[i];
  init(N, D, F);

  int *A = new int[U], *B = new int[U];
  for (int i=0; i<U; i++) {
    std::cin >> A[i] >> B[i];
  }
  curseChanges(U, A, B);

  bool correct = true;
  for (int i=0; i<Q; i++) {
    int X,Y,V;
    std::cin >> X >> Y >> V;
    cout<<question(X,Y,V)<<endl;
  }
  return 0;
}
#endif

Compilation message

potion.cpp: In function 'int calc(std::vector<int>, std::vector<int>)':
potion.cpp:38:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     while(l<A.size()&&r<B.size()){
      |           ~^~~~~~~~~
potion.cpp:38:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     while(l<A.size()&&r<B.size()){
      |                       ~^~~~~~~~~
potion.cpp: In function 'int question(int, int, int)':
potion.cpp:53:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |     for(;I<C[x].size()&&C[x][I].first<v;I++)
      |          ~^~~~~~~~~~~~
potion.cpp:66:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |     for(;I<C[y].size()&&C[y][I].first<v;I++)
      |          ~^~~~~~~~~~~~

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16728 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16984 KB Output is correct
2 Correct 10 ms 17112 KB Output is correct
3 Correct 10 ms 16984 KB Output is correct
4 Correct 34 ms 28340 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 336 ms 55196 KB Output is correct
2 Correct 349 ms 54724 KB Output is correct
3 Correct 309 ms 43596 KB Output is correct
4 Correct 1190 ms 151784 KB Output is correct
5 Correct 535 ms 64080 KB Output is correct
6 Correct 1461 ms 209024 KB Output is correct
7 Correct 509 ms 58112 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 301 ms 54580 KB Output is correct
2 Correct 1486 ms 222400 KB Output is correct
3 Correct 1058 ms 125012 KB Output is correct
4 Correct 1706 ms 207972 KB Output is correct
5 Correct 482 ms 65096 KB Output is correct
6 Correct 1771 ms 208620 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 19288 KB Output is correct
2 Incorrect 35 ms 18876 KB Incorrect
3 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16728 KB Output is correct
2 Correct 9 ms 16984 KB Output is correct
3 Correct 10 ms 17112 KB Output is correct
4 Correct 10 ms 16984 KB Output is correct
5 Correct 34 ms 28340 KB Output is correct
6 Correct 336 ms 55196 KB Output is correct
7 Correct 349 ms 54724 KB Output is correct
8 Correct 309 ms 43596 KB Output is correct
9 Correct 1190 ms 151784 KB Output is correct
10 Correct 535 ms 64080 KB Output is correct
11 Correct 1461 ms 209024 KB Output is correct
12 Correct 509 ms 58112 KB Output is correct
13 Correct 301 ms 54580 KB Output is correct
14 Correct 1486 ms 222400 KB Output is correct
15 Correct 1058 ms 125012 KB Output is correct
16 Correct 1706 ms 207972 KB Output is correct
17 Correct 482 ms 65096 KB Output is correct
18 Correct 1771 ms 208620 KB Output is correct
19 Correct 50 ms 19288 KB Output is correct
20 Incorrect 35 ms 18876 KB Incorrect
21 Halted 0 ms 0 KB -