제출 #604183

#제출 시각아이디문제언어결과실행 시간메모리
604183Hussein3600Baloni (COCI15_baloni)C++14
100 / 100
383 ms3960 KiB
#include<bits/stdc++.h>
using namespace std ;
typedef long long ll ;
const int N=1e6 ;
int n , a ,ans=0  ;
int main()
{
    cin>>n;
    multiset<ll>s;
    for(int i=0;i<n;i++)
    {
        cin >> a ;
        if(s.find(a)==s.end())ans++,s.insert(a-1);
        else
        {
            s.erase(s.find(a)) ;
            s.insert(a-1) ;
        }
    }
    cout<<ans<<endl;
}
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