Submission #582244

#	Time	Username	Problem	Language	Result	Execution time	Memory
582244		drdilyor	Gondola (IOI14_gondola)	C++17	10 / 100	10 ms	852 KiB

gondola

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>
#ifdef ONPC
    #include "t_debug.cpp"
#else
    #define debug(...) 42
#endif
#define allit(a) (a).begin(), (a).end()
#define sz(a) ((int) (a).size())
#define cut(s) {cout << s << '\n'; return 0;}
#include "gondola.h"

using namespace std;
using ll = long long;
using vi = vector<int>;
namespace pd = __gnu_pbds;
template<typename K> using ordered_set = pd::tree<K, pd::null_type, less<K>, pd::rb_tree_tag, pd::tree_order_statistics_node_update>;
template<typename... T> using hash_table = pd::gp_hash_table<T...>;

const int INF = 1e9;
const ll INFL = 1e18;
const int N = 250000;
const int RANDOM = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 rng(RANDOM);

int valid(int n, int a[]) {

    int dupe = 0;
    char visited[N+1];
    memset(visited, 0, sizeof(visited));
    for (int i = 0; i < n; i++) {
        if (visited[a[i]]) dupe = 1;
        visited[a[i]] = 1;
    }
    if (dupe) return 0;

    int fix = -1;
    for (int i = 0; i < n; i++) {
        if (a[i] <= n) {
            fix = i - a[i] + 1;
        }
    }
    if (fix == -1) return 1;
    for (int i = 1, j = fix; i <= n; i++, j = (j+1)%n) {
        if (a[j] <= n && a[j] != i) return 0;
    }

    return 1;
}

//----------------------

int replacement(int n, int a_[], int b[]) {
    if (n > 10) exit(1);
    vi a(n);
    for (int i = 0; i < n; i++) a[i] = a_[i];

    int fix = -1;
    for (int i = 0; i < n; i++) {
        if (a[i] <= n) {
            fix = i - a[i] + 1;
        }
    }

    vi visited(3*n, -1);
    int broken = -1;
    int mx = 0;
    for (int i = 0; i < n; i++) {
        if (a[i] > n) {
            if (i < fix) visited[a[i]] = i + n - fix + 1;
            else visited[a[i]] = i - fix + 1;
        }
        if (a[i] > mx) {
            mx = a[i];
            broken = visited[a[i]];
        }
    }
    int j = 0;
    for (int i = n+1; i <= mx; i++) {
        if (visited[i] == -1) {
            b[j++] = broken;
            broken = j + n;
        }
        else {
            b[j++] = visited[i];
        }
    }
    return j;
}

//----------------------

int countReplacement(int n, int inputSeq[])
{
  return -3;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 10
• Subtask 4: 0 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10