Submission #749914

#	Time	Username	Problem	Language	Result	Execution time	Memory
749914		Abrar_Al_Samit	Gondola (IOI14_gondola)	C++17	25 / 100	9 ms	1412 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

const int nax = 1e5 + 3;

int cnt[nax];
int expected[nax];

void get_expected(int n, int inputSeq[]) {
    for(int i=0; i<n; ++i) {
        expected[i] = 0;
    }

    int min_at = min_element(inputSeq, inputSeq+n) - inputSeq;

    int cur_val = inputSeq[min_at];
    int cur_id = min_at;

    for(int i=cur_id; ; ++i, ++cur_val) {
        if(i==n) i = 0;
        if(cur_val>n) cur_val = 1;

        if(expected[i]) break;

        expected[i] = cur_val;
    }
}
int valid(int n, int inputSeq[]) {
    for(int i=0; i<n; ++i) {
        cnt[inputSeq[i]]++;
        if(cnt[inputSeq[i]]>1) {
            return 0;
        }
    }

    get_expected(n, inputSeq);


    for(int i=0; i<n; ++i) if(inputSeq[i]<=n) {
        if(inputSeq[i]!=expected[i]) return 0;
    }
    return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
    vector<int>v;
    for(int i=0; i<n; ++i) if(gondolaSeq[i]>n) {
        v.push_back(gondolaSeq[i]);
    }

    set<int>absent;
    for(int i=1; i<=n; ++i) {
        absent.insert(i);
    }
    for(int i=0; i<n; ++i) if(gondolaSeq[i]<=n) {
        absent.erase(gondolaSeq[i]);
    }

    sort(v.begin(), v.end());

    int l = 0;
    int at = 0;

    while(at<v.size()) {
        int cur_gondola = *absent.begin();
        absent.erase(cur_gondola);

        while(l+n+1<=v[at]) {
            replacementSeq[l] = cur_gondola;
            cur_gondola = l+n+1;
            
            ++l;
        }
        ++at;
    }
    return l;
}

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

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

Compilation message (stderr)

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:68:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |     while(at<v.size()) {
      |           ~~^~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 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