Submission #153858

#TimeUsernameProblemLanguageResultExecution timeMemory
153858SeekingOblivionBaloni (COCI15_baloni)C++14
100 / 100
335 ms656 KiB
//#include<fstream>
#include<algorithm>
#include<iostream>
#define fin cin
#define fout cout
using namespace std;
//ifstream fin("karte.in");
//ofstream fout("karte.out");
int f[1000001],n,i,sol,a;
int main()
{
    fin>>n;
    for(i=1;i<=n;i++)
    {
        fin>>a;
        if(f[a+1]==0) sol++;
        else f[a+1]--;
        f[a]++;
    }
    fout<<sol;
    return 0;
}
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