제출 #1250625

#제출 시각아이디문제언어결과실행 시간메모리
1250625monaxiaBaloni (COCI15_baloni)C++20
100 / 100
33 ms3908 KiB
#include <bits/stdc++.h>
using namespace std;
int main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    int n;
    cin>>n;
    vector<int>a(n);
    int m=0;
    for(int i=0;i<n;i++){cin>>a[i]; if(a[i]>m)m=a[i];}
    vector<int>c(m+1);
    long long ans=0;
    for(int x:a){
        if(c[x]>0) c[x]--;
        else ans++;
        if(x>1) c[x-1]++;
    }
    cout<<ans;
    return 0;
}
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