Submission #309243

#	Time	Username	Problem	Language	Result	Execution time	Memory
309243		daniel920712	Gondola (IOI14_gondola)	C++14	20 / 100	15 ms	1920 KiB

gondola

#include "gondola.h"
int con[250005]={0};
int all[100005];
int valid(int n, int inputSeq[])
{
    int what,ok=1,i;
    for(i=1;i<=n;i++) all[i]=1e9;
    for(i=0;i<n;i++)
    {
        
        con[inputSeq[i]]++;
        if(con[inputSeq[i]]>=2) ok=0;
        if(inputSeq[i]>n) continue;
        all[inputSeq[i]]=(inputSeq[i]-i+n)%n;
        what=(inputSeq[i]-i+n)%n;
    }
    for(i=1;i<=n;i++) if(all[i]!=1000000000&&all[i]!=what) ok=0;
    return ok;
}

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

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:17:44: warning: 'what' may be used uninitialized in this function [-Wmaybe-uninitialized]
   17 |     for(i=1;i<=n;i++) if(all[i]!=1000000000&&all[i]!=what) ok=0;
      |                          ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~

• 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