oj.uz

답안 #989135

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
989135 2024-05-27T15:12:29 Z khanhphucscratch Minerals (JOI19_minerals) C++14
0 / 100
 1 ms 600 KB 
#include<bits/stdc++.h>
#include "minerals.h"
using namespace std;
/*int Query(int x)
{
    cout<<"? "<<x<<endl;
    int ans; cin>>ans;
    return ans;
}
void Answer(int a, int b)
{
    cout<<"! "<<a<<" "<<b<<endl;
}*/
set<pair<int, int>> ans;
int dp[43001], place[43001], pre = 0;
bool state[43001];
int changeQuery(int x)
{
    state[x] ^= 1;
    int cur = Query(x), a = cur - pre;
    pre = cur;
    return a;
}
void calculate(vector<int> a, vector<int> b, int ex, bool full)
{
    if(a.size() == 1){
        ans.insert({a[0], b[0]});
        return;
    }
    int num = place[a.size()];
    /*cout<<"We're solving: "<<endl;
    for(int i : a) cout<<i<<" ";
    cout<<endl;
    for(int i : b) cout<<i<<" ";
    cout<<endl;
    cout<<"Optimal: "<<num<<endl;*/
    for(int i = 0; i < a.size(); i++) if(a[i] == ex){swap(a[i], a[0]); break;}
    vector<int> al, ar, bl, br;
    for(int i = 0; i < num; i++){
        al.push_back(a[i]);
        if(ex < 0 || i > 0) changeQuery(a[i]);
    }
    for(int i = num; i < a.size(); i++) ar.push_back(a[i]);
    for(int i = 0; i < b.size()-1; i++){
        if((changeQuery(b[i]) == 0) == full) br.push_back(b[i]);
        else bl.push_back(b[i]);
    }
    int last = b[b.size()-1];
    if(bl.size() == al.size()){
        swap(bl, br); swap(al, ar);
    }
    bl.push_back(last);
    if(full == 0){ //left are 1
        calculate(bl, al, last, (state[last]^1));
        calculate(ar, br, -1, 0);
    }
    else{ //right are 1
        calculate(bl, al, last, (state[last]^1));
        calculate(ar, br, -1, 1);
    }
}
void Solve(int n)
{
    //Calculate dp
    for(int i = 2; i <= n; i++){
        dp[i] = 1e9;
        for(int j = i/4; 2*j <= i; j++){ //pray
            int val = i+j-1+dp[j]+dp[i-j];
            if(val < dp[i]){dp[i] = val; place[i] = j;}
        }
    }
    vector<int> a, b;
    for(int i = 1; i <= 2*n; i++){
        if(changeQuery(i) == 1) a.push_back(i);
        else b.push_back(i);
    }
    calculate(a, b, -1, 1);
    for(pair<int, int> i : ans) Answer(i.first, i.second);
}

Compilation message

minerals.cpp: In function 'void calculate(std::vector<int>, std::vector<int>, int, bool)':
minerals.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     for(int i = 0; i < a.size(); i++) if(a[i] == ex){swap(a[i], a[0]); break;}
      |                    ~~^~~~~~~~~~
minerals.cpp:43:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     for(int i = num; i < a.size(); i++) ar.push_back(a[i]);
      |                      ~~^~~~~~~~~~
minerals.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for(int i = 0; i < b.size()-1; i++){
      |                    ~~^~~~~~~~~~~~

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Wrong Answer [5]
2 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Wrong Answer [5]
2 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Wrong Answer [5]
2 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Wrong Answer [5]
2 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Wrong Answer [5]
2 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Wrong Answer [5]
2 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Wrong Answer [5]
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Wrong Answer [5]
2 Halted 0 ms 0 KB -