제출 #96131

#제출 시각아이디문제언어결과실행 시간메모리
96131fadi57Baloni (COCI15_baloni)C++14
100 / 100
372 ms4088 KiB
#include <bits/stdc++.h>
using namespace std;
 
#define clr(i, j)     memset(i, j, sizeof(i))
#define pb            push_back
 
typedef long long     ll;
 
//-*-*-*-*-*-*-*-*-

 map<ll,ll>l;
int main()
{ll n;
 cin>>n;ll ans=n;ll d;
for(int i=0;i<n;i++){
   cin>>d;
 l[d]++;
   if(l[d+1]){l[d+1]--;ans--;}
}
   
   cout<<ans;
     
   }
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