Submission #469033

#TimeUsernameProblemLanguageResultExecution timeMemory
469033ala2Baloni (COCI15_baloni)C++14
100 / 100
225 ms7392 KiB
#include <iostream>

using namespace std;
int a[1001000];
int v[1001000];

int main()
{
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
        cin>>a[i];
    v[a[0]]=1;
    int ans=0;
    for(int i=1;i<n;i++)
    {
        if(v[a[i]+1])
        {
            v[a[i]+1]--;
            v[a[i]]++;
        }
        else
        {
           // cout<<"            "<<i<<endl;
            ans++;
            v[a[i]]++;
        }
        //for(int i=0;i<n;i++)
        //    cout<<v[i]<<" ";
       // cout<<endl;
       // cout<<endl;

    }
    cout<<ans+1<<endl;
}
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