Submission #541728

#TimeUsernameProblemLanguageResultExecution timeMemory
541728nutzuBaloni (COCI15_baloni)C++11
0 / 100
192 ms7260 KiB
#include <iostream>

using namespace std;
long long n,i,s,x,x1,v[1000001],v1[1000001];
int main()
{
    cin>>n;
    for(i=1; i<=n; i++)
    {
        cin>>v[i];
    }
    for(i=1; i<=n; i++)
    {
        if(v[i]!=v[i-1]-1)
        {
            if(v1[v[i]]>0)
                v1[v[i]]--;
            else
            {
                s++;
                v1[v[i]]=v[i];
            }

        }
    }
    cout<<s;
}
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