Submission #232071

#	Time	Username	Problem	Language	Result	Execution time	Memory
232071		anonymous	Gondola (IOI14_gondola)	C++14	20 / 100	18 ms	1408 KiB

gondola

#include "gondola.h"
#include <vector>
#include <iostream>
#define MAXN 100005
#define MAXV 250005
using namespace std;

int valid(int n, int Seq[])
{
  bool has[MAXV]={}, b = false;
  int pos, v;
  for (int i=0; i<n; i++) {
      if (Seq[i] <= n) {
            pos = i;
            v = Seq[i];
      }
      if (has[Seq[i]]) {return(0);}
      has[Seq[i]]=true;

  }
  for (int i=0; i<n; i++) {
    if (Seq[pos] > n) {}
    else if (Seq[pos] != v) {return(0);}
    pos = (pos+1) %n;
    v= v == n ? 1 : v+1;
  }
  return(1);
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  return -2;
}

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

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

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:10:22: warning: unused variable 'b' [-Wunused-variable]
   bool has[MAXV]={}, b = false;
                      ^
gondola.cpp:25:15: warning: 'v' may be used uninitialized in this function [-Wmaybe-uninitialized]
     v= v == n ? 1 : v+1;
        ~~~~~~~^~~~~~~~~
gondola.cpp:22:16: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if (Seq[pos] > n) {}
                ^

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