10个学生考完期末考试评卷完成后，A老师需要划出及格线，

// vector::pop_back
#include <iostream>
#include <vector>
#include<string>
using namespace std;

int scoreLevel(int a[], int len){
    int level;
	int temp;
	for(int i=0;i<10;i++){
		for(int j=0;j<10-i-1;j++){
			if(a[j]>a[j+1]){
			    temp = a[j];
				a[j] = a[j+1];
				a[j+1] = temp;
			}
		}
	}
	cout<<a[0]<<endl;
	if(a[0]>60){
	    level = 60;
	}
	else{
	    level = a[3];
		cout<<a[4]<<endl;
		for(int i=0;i<10;i++){
			if(level%10==0){
			    break;    
			}
			level--;
		}

	}
	return level;
}
int main()
{
	int b;
	int a[10] = {61,51,49,3020,10,70,80,90,99};
	b = scoreLevel(a,9);
    cout<<b<<endl;
    system("pause");
    return 0;
}

//输入样例：61 51 49 3020 10 70 80 90 99
//输出样例：50