# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1017546 | vivkostov | Gondola (IOI14_gondola) | C++14 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#define endl '\n'
#include "gondola.h"
using namespace std;
void speed()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
}
int n,a[200005],used[1000005];
int valid(int n,int seq[])
{
int br=0;
for(int i=1;i<=n;i++)
{
a[i]=seq[i-1];
}
for(int i=1;i<=n;i++)
{
if(a[i]<=n)
{
if(!br)br=a[i];
else
{
if(a[i]!=br)
{
return 0;
}
}
}
if(used[a[i]])
{
return 0;
}
used[a[i]]=1;
if(br)br++;
if(br>n)br=1;
}
for(int i=n+2;i<=250000;i++)
{
if(used[i]&&!used[i-1])
{
return 0;
}
}
return 1;
}
/*int main()
{
speed();
read();
return 0;
}
*/