UVa 10714

#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;

/*题意：求所有蚂蚁走下长杆的最长时间和最短时间*/

/*最短时间：先求出每个蚂蚁走下杆的最短时间。然后求出最短时间的最大值
最长时间：先求每个蚂蚁走下杆的最长时间。然后求出最长时间的最大值*/

int max(int a,int b){
     if (a > b)return a;
     else
        return b;
}
int min(int a,int b){
     if(a < b)return a;
     else return b;
}
class Ant{
    private:
        int poleLenth;
        int antNum;
        int minTime ;
        int maxTime ;
    public:
        void readData();
        void process();
};
void Ant::readData(){
    int cases;
    scanf("%d",&cases);
    while(cases--){
        minTime = -1;
        maxTime = -1;
        scanf("%d%d",&poleLenth,&antNum);
        for(int i = 0;i < antNum;i++){
            process();
        }
        cout<<minTime<<" "<<maxTime<<endl;
    }
}
void Ant::process(){
    int local;
    scanf("%d",&local);
    minTime = max(minTime,min(local,poleLenth - local));
    maxTime = max(maxTime,max(local,poleLenth - local));
}

int main()
{
    Ant ant;
    ant.readData();
    return 0;
}