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#F2264. Two Circles

    ID: 2270 传统题 2000ms 256MiB 尝试: 0 已通过: 0 难度: 9 上传者: 标签>枚举数据结构模拟算法思想编程与模拟挑战难度共享题库Codeforces英文题面题目来源题面语言

Two Circles

题目描述

E. Two Circles
time limit per test
4 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output

Let's assume that we are given an n×m table filled by integers. We'll mark a cell in the i-th row and j-th column as (i,j). Thus, (1,1) is the upper left cell of the table and (n,m) is the lower right cell. We'll assume that a circle of radius r with the center in cell (i0,j0) is a set of such cells (i,j) that . We'll consider only the circles that do not go beyond the limits of the table, that is, for which r+1≤i0n-r and r+1≤j0m-r.

A circle of radius 3 with the center at (4,5).

Find two such non-intersecting circles of the given radius r that the sum of numbers in the cells that belong to these circles is maximum. Two circles intersect if there is a cell that belongs to both circles. As there can be more than one way to choose a pair of circles with the maximum sum, we will also be interested in the number of such pairs. Calculate the number of unordered pairs of circles, for instance, a pair of circles of radius 2 with centers at (3,4) and (7,7) is the same pair as the pair of circles of radius 2 with centers at (7,7) and (3,4).

Input

The first line contains three integers n, m and r (2≤n,m≤500, r≥0). Each of the following n lines contains m integers from 1 to 1000 each − the elements of the table. The rows of the table are listed from top to bottom at the elements in the rows are listed from left to right. It is guaranteed that there is at least one circle of radius r, not going beyond the table limits.

Output

Print two integers − the maximum sum of numbers in the cells that are located into two non-intersecting circles and the number of pairs of non-intersecting circles with the maximum sum. If there isn't a single pair of non-intersecting circles, print 0 0.

Examples
Input
2 2 0
1 2
2 4
Output
6 2
Input
5 6 1
4 2 1 3 2 6
2 3 2 4 7 2
5 2 2 1 1 3
1 4 3 3 6 4
5 1 4 2 3 2
Output
34 3
Input
3 3 1
1 2 3
4 5 6
7 8 9
Output
0 0

题目来源:fps-www.educg.net-codeforce-1-2833.xml.zip;FPS 共享题包,题包内第 1873 题。保留原作者与原赛事署名。