oj.uz

답안 #1106598

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1106598 2024-10-30T17:29:19 Z Ahmed57 스핑크스 (IOI24_sphinx) C++17
0 / 100
 19 ms 504 KB 
#include <bits/stdc++.h>
#include "sphinx.h"
 
using namespace std;
int pr[251];
vector<int> adjj[251];
int find(int x){
    if(x==pr[x])return x;
    return pr[x] = find(pr[x]);
}
bool mergegroup(int a,int b){
    a = find(a);
    b = find(b);
    if(a==b)return 0;
    pr[a] = b;
    return 1;
}
vector<int> find_colours(int n,vector<int> X,vector<int> Y){
    for(int i = 0;i<X.size();i++){
        adjj[X[i]].push_back(Y[i]);
        adjj[Y[i]].push_back(X[i]);
    }
    queue<int> q;
    set<int> s;
    for(int i = 0;i<n;i++){
        s.insert(i);
    }
    vector<int> col(n,0);
    int d = 0;
    while(!s.empty()){
        q.push((*s.begin()));
        s.erase(s.begin());
        while(!q.empty()){
            int i = q.front();
            q.pop();
            s.erase(i);
        vector<int> v;
        for(auto j:adjj[i]){
            if(s.find(j)==s.end()){
                v.push_back(j);
            }
        }
        int sz = v.size();
        int l = 0 , r = sz-1, ans = -1;
        while(l<=r){
            int mid = (l+r)/2;
            vector<int> e(n,n);
            e[i] = -1;
            for(int j = 0;j<=mid;j++){
                e[v[j]] = -1;
            }
            int cnt = 0;
            for(int j = 0;j<n;j++){
                pr[j] = j;cnt++;
            }
            for(int j = 0;j<X.size();j++){
                if(e[X[j]]==-1&&e[Y[j]]==-1){
                    if(X[j]==i||Y[j]==i)continue;
                    if(col[X[j]]==col[Y[j]])cnt-=mergegroup(X[j],Y[j]);
                }else if(e[X[j]]==n&&e[Y[j]]==n){
                    cnt-=mergegroup(X[j],Y[j]);
                }
            }
            if(cnt==perform_experiment(e)){
                l = mid+1;
            }else {
                ans = mid;
                r = mid-1;
            }
        }
        if(ans==-1){
            col[i] = d++;
        }else{
            col[i] = col[v[ans]];
        }
        for(auto j:v){
            q.push(j);
        } 
        }
    }
    return col;
}

Compilation message

sphinx.cpp: In function 'std::vector<int> find_colours(int, std::vector<int>, std::vector<int>)':
sphinx.cpp:19:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(int i = 0;i<X.size();i++){
      |                   ~^~~~~~~~~
sphinx.cpp:56:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |             for(int j = 0;j<X.size();j++){
      |                           ~^~~~~~~~~

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 19 ms 440 KB #experiments reached 2751
2 Halted 0 ms 0 KB -

Subtask #1
0.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 19 ms 504 KB #experiments reached 2751
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 19 ms 440 KB #experiments reached 2751
2 Halted 0 ms 0 KB -

Subtask #3
0.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 19 ms 504 KB #experiments reached 2751
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 19 ms 504 KB #experiments reached 2751
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 19 ms 440 KB #experiments reached 2751
2 Halted 0 ms 0 KB -