(simple statistics) acwing 3404 Who are your potential friends

3404. Who are your potential friends

Topic link https://www.acwing.com/problem/content/3407/
subject ：

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cstring>

using namespace std;
int a[210],f[210];
int main(){
    
    int n,m;
    cin>>n>>m;
    for(int i=1;i<=n;i++){
    
        scanf("%d",&a[i]);
        f[a[i]]++;
    }
    for(int i=1;i<=n;i++){
    
        if(f[a[i]]==1)
            cout<<"BeiJu\n";
        else
            cout<<f[a[i]]-1<<endl;
    }
    return 0;
}