Submission #800986

# Submission time Handle Problem Language Result Execution time Memory
800986 2023-08-02T03:41:00 Z PixelCat Unscrambling a Messy Bug (IOI16_messy) C++14
Compilation error
0 ms 0 KB
#include <vector>

#ifdef NYAOWO
#include "grader.cpp"
#endif

#include <bits/stdc++.h>
#define For(i, a, b) for(int i = a; i <= b; i++)
#define Forr(i, a, b) for(int i = a; i >= b; i--)
#define F first
#define S second
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define sz(x) ((int)x.size())
#define int LL
using namespace std;
using LL = long long;
using pii = pair<int, int>;

// chars = "01" or "10"
string make_str(int n, vector<int> v, string chars) {
    string s;
    For(i, 1, n) s.push_back(chars[0]);
    for(auto &i:v) s[i] = chars[1];
    return s;
}

void prepare(int n, int lg) {
    vector<int> v;
    For(i, 1, lg) {
        v.eb(i - 1);
        add_element(make_str(n, v, "10"));
    }
    For(i, 0, lg - 1) {
        v.clear();
        v.eb(i);
        For(j, lg, n - 1) if(j & (1 << i)) {
            v.eb(j);
            add_element(make_str(n, v, "01"));
            v.pop_back();
        }
    }
}

vector<int> solve(int n, int lg) {
    vector<int> res(n, -1);
    vector<int> v;
    vector<int> ban(n, 0);
    For(i, 0, lg - 1) {
        For(j, 0, n - 1) if(!ban[j]) {
            v.eb(j);
            if(check_element(make_str(n, v, "10"))) {
                res[j] = i;
                ban[j] = 1;
                break;
            }
            v.pop_back();
        }
    }
    For(i, 0, n - 1) if(!ban[i]) res[i] = 0;
    vector<int> v2;
    For(i, 0, lg - 1) {
        v2.clear();
        v2.eb(v[i]);
        For(j, 0, n - 1) if(!ban[j]) {
            v2.eb(j);
            if(check_element(make_str(n, v2, "01"))) {
                res[j] |= (1 << i);
            }
            v2.pop_back();
        }
    }
    return res;
}

vector<int32_t> restore_permutation(int32_t n, int32_t w, int32_t r) {
    assert(max(w, r) > 0);
    int lg = __lg(n);
    prepare(n, lg);
    compile_set();
    vector<int> res = solve(n, lg);
    return vector<int32_t>(all(res));
}

Compilation message

messy.cpp: In function 'void prepare(LL, LL)':
messy.cpp:32:9: error: 'add_element' was not declared in this scope
   32 |         add_element(make_str(n, v, "10"));
      |         ^~~~~~~~~~~
messy.cpp:39:13: error: 'add_element' was not declared in this scope
   39 |             add_element(make_str(n, v, "01"));
      |             ^~~~~~~~~~~
messy.cpp: In function 'std::vector<long long int> solve(LL, LL)':
messy.cpp:52:16: error: 'check_element' was not declared in this scope
   52 |             if(check_element(make_str(n, v, "10"))) {
      |                ^~~~~~~~~~~~~
messy.cpp:67:16: error: 'check_element' was not declared in this scope
   67 |             if(check_element(make_str(n, v2, "01"))) {
      |                ^~~~~~~~~~~~~
messy.cpp: In function 'std::vector<int> restore_permutation(int32_t, int32_t, int32_t)':
messy.cpp:80:5: error: 'compile_set' was not declared in this scope
   80 |     compile_set();
      |     ^~~~~~~~~~~