class Solution {
public:
    /**
     * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
     *
     * 
     * @param students int整型vector 
     * @param sandwiches int整型vector 
     * @return int整型
     */
    int countStudents(vector<int>& students, vector<int>& sandwiches) {
        int n=students.size();
        queue<int>student,sandwich;
        for(int i=0;i<n;i++){
            student.push(students[i]);
            sandwich.push(sandwiches[i]);
        }
        //连续无法匹配的次数如果大于当前队伍中的人数,说明剩余学生都不满足;
        int failedmatch=0;
        while(!student.empty() && failedmatch < student.size()){
            if(student.front()==sandwich.front()){
                student.pop();
                sandwich.pop();
                failedmatch=0;
            }else{
                student.push(student.front());
                student.pop();
                failedmatch++;
            }
        }
        return student.size();
        
    }
};