oj.uz

Submission #597775

# Submission time Handle Problem Language Result Execution time Memory
597775 2022-07-16T21:00:26 Z yanndev Art Collections (BOI22_art) C++17
0 / 100
 0 ms 208 KB 
#include <art.h>
#include <bits/stdc++.h>
using namespace std;

void solve(int n) {
    vector<int> posOfVal(n, -1);

    // newInv = oldInv - (rank - 1) + (n - rank)
    // (newInv - oldInv - ()

    for (int i = 1; i <= n; i++) {
        vector<int> ls {};
        ls.push_back(i);
        for (int j = 1; j <= n; j++)
            if (j != i)
                ls.push_back(j);

        int oldInv = publish(ls);
        
        ls.clear();
        for (int j = 1; j <= n; j++)
            if (j != i)
                ls.push_back(j);
        ls.push_back(i);

        // curInv = oldInv 

        int curInv = publish(ls);
        // curInv = oldInv - (rank - 1) + (n - rank)
        // curInv = oldInv - (2 * rank) + (n + 1)
        // -(curInv - oldInv - (n + 1))/2 = rank
        posOfVal[i] = -(curInv - oldInv - (n + 1)) / 2;
    }

    vector<int> ls (n, -1);
    for (int i = 1; i <= n; i++)
        ls[posOfVal[i]] = i;
    answer(ls);
}

Compilation message

interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Not correct
2 Halted 0 ms 0 KB -