Codeforce 567A - Lineland Mail

All cities of Lineland are located on the Ox coordinate axis. Thus, each city is associated with its position xi — a coordinate on the Ox axis. No two cities are located at a single point.

Lineland residents love to send letters to each other. A person may send a letter only if the recipient lives in another city (because if they live in the same city, then it is easier to drop in).

Strange but true, the cost of sending the letter is exactly equal to the distance between the sender's city and the recipient's city.

For each city calculate two values mini and maxi, where mini is the minimum cost of sending a letter from the i-th city to some other city, andmaxi is the the maximum cost of sending a letter from the i-th city to some other city

Input

The first line of the input contains integer n (2 ≤ n ≤ 105) — the number of cities in Lineland. The second line contains the sequence of n distinct integers x1, x2, ..., xn ( - 109 ≤ xi ≤ 109), where xi is the x-coordinate of the i-th city. All the xi's are distinct and follow in ascending order.

Output

Print n lines, the i-th line must contain two integers mini, maxi, separated by a space, where mini is the minimum cost of sending a letter from the i-th city, and maxi is the maximum cost of sending a letter from the i-th city.

Examples

input

4
-5 -2 2 7

output

input

2
-1 1

output

2 2
2 2

思路:

找出n个城市坐标最大和最小的点，对于第i个城市来说，花费最大的是到坐标最大的点或坐标最小的点，花费最小是到第i-1或i+1个点，记录所有的结果，并输出

 #include <iostream>

 #include <algorithm>

 #include <cstring>

 #include <cstdio>

 #include <vector>

 #include <cstdlib>

 #include <iomanip>

 #include <cmath>

 #include <ctime>

 #include <map>

 #include <set>

 using namespace std;

 #define lowbit(x) (x&(-x))

 #define max(x,y) (x>y?x:y)

 #define min(x,y) (x<y?x:y)

 #define MAX 100000000000000000

 #define MOD 1000000007

 #define pi acos(-1.0)

 #define ei exp(1)

 #define PI 3.141592653589793238462

 #define INF 0x3f3f3f3f3f

 #define mem(a) (memset(a,0,sizeof(a)))

 typedef long long LL;

 const int N=;

 const int mod=1e9+;

 LL a[] , l , r ;

 int main() {

     int i , n ;

     scanf("%d", &n) ;

     for(i =  ; i < n ; i++)

         scanf("%I64d", &a[i]) ;

     l = a[] ;

     r = a[n-] ;

     printf("%I64d %I64d\n", a[]-a[] , r - a[] ) ;

     for(i =  ; i < n- ; i++) {

         printf("%I64d %I64d\n", min(a[i]-a[i-],a[i+]-a[i]) , max(a[i]-l,r-a[i]) ) ;

     }

     printf("%I64d %I64d\n", a[n-]-a[n-], a[n-]-l ) ;

     return  ;

 }

巴特西

Codeforce 567A - Lineland Mail

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