PAT乙级1038 统计同成绩学生

#include <iostream>#include <map>#include <vector>using namespace std;int main(){    int N,K,num;    vector<int> find;    map<int,int> stu_score;    cin>>N;    for(int i=0;i<N;i++){        cin>>num;        if(stu_score.count(num)==0){            stu_score[num]=1;        }else{            stu_score[num]++;        }    }    cin>>K;    for(int i=0;i<K;i++){        cin>>num;        find.push_back(num);    }    for(int i=0;i<K;i++){        if(i==0){            cout<<stu_score[find[i]];        }else{            cout<<" "<<stu_score[find[i]];        }    }    return 0;}