Submission #417834

#	Time	Username	Problem	Language	Result	Execution time	Memory
417834		arneves	Gondola (IOI14_gondola)	C++17	0 / 100	1 ms	1228 KiB

gondola

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

using namespace std;

typedef long long ll;

#define pb push_back
#define f first
#define s second
#define all(x) x.begin(), x.end()

const int MOD = 1'000'000'007;
const int MX = 100'005;
//long double PI = 3.14159265358979323846264338327950;

int valid(int n, int inputSeq[])
{
  //return -1;

    int a[250005];
    memset(a,-1,sizeof(a));

    for(int i=0; i<n; i++){

        if(a[inputSeq[i]-1]!=-1){
            return 0;
        }
        a[inputSeq[i]-1]=i;
    }

    int b[n];
    memset(b,-1,sizeof(b));

    for(int i=0; i<n; i++){
        if(a[i]!=-1){
            b[a[i]]=i;
            //cout<<i<<'\n';

            for(int j=a[i]+1; j<a[i]+n; j++){
                b[j%n]=(b[(j-1)%n]+1)%n;
            }

            break;
        }
    }

    //for(int i=0; i<n; i++) cout<<b[i]<<' ';
    //cout<<'\n';
    for(int i=0; i<n; i++){
        if(a[i]!=-1&&b[i]!=-1){
            if(a[i]!=b[i]) return 0;
        }
    }

    return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    int a[250'005];
    memset(a,-1,sizeof(a));

    for(int i=0; i<n; i++){

        a[gondolaSeq[i]-1]=i;
    }

    int b[n];
    for(int i=0; i<n; i++){
        b[i]=i;
    }
    //cout<<a[0]<<'\n';

    for(int i=0; i<n; i++){
        if(a[i]!=-1){
            b[a[i]]=i;
            //cout<<i<<'\n';

            for(int j=a[i]+1; j<a[i]+n; j++){
                b[j%n]=(b[(j-1)%n]+1)%n;
            }

            break;
        }
    }
    //for(int i=0; i<n; i++) cout<<b[i]<<' ';
    //cout<<'\n';


    return 0;
}

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

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

/*void caso_teste(){


}*/
/*
int main(){

    cin.tie(0);ios_base::sync_with_stdio(0);
    //freopen ("in.txt","r",stdin);

    int n_casos=1; //cin>>n_casos;

    //while(n_casos--) caso_teste();
    int a[7]={2, 3, 4, 9, 6, 7, 1};
    int b[2*MX];
    int c=replacement(7, a, b);
    cout<<c<<'\n';
}*/

• Subtask 1: 0 / 5
• Subtask 2: 0 / 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