一行完成

#include<bits/stdc++.h>
using namespace std;int main(){map<int,int>ma;int n,abc=0;int nn[110];cin>>n;for(int i=0;i<n;i++){int x;cin>>x;for(int j=0;j<=abc;j++){if(nn[j]==x){ma[x]=1;abc++;nn[abc]=x;}else{ma[x]++;}}}map<int,int>::iterator it;for(it=ma.begin();it!=ma.end();it++){cout<<it -> first<<" "<<it -> second<<endl;}}