Online Judge | Problem Set | Authors | Online Contests | User | ||||||
---|---|---|---|---|---|---|---|---|---|---|

Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest |

Language: Matrix
Description Given an n*n matrix A, whose entries Ai,j are integer numbers ( 0 <= i < n, 0 <= j < n ). An operation SHIFT at row i ( 0 <= i < n ) will move the integers in the row one position right, and the rightmost integer will wrap around to the leftmost column.
You can do the SHIFT operation at arbitrary row, and as many times as you like. Your task is to minimize _{0<=j< n}{Cj|Cj=Σ_{0<=i< n}A_{i,j}}Input The input consists of several test cases. The first line of each test case contains an integer n. Each of the following n lines contains n integers, indicating the matrix A. The input is terminated by a single line with an integer −1. You may assume that 1 <= n <= 7 and |A _{i,j}| < 10^{4}.Output For each test case, print a line containing the minimum value of the maximum of column sums. Sample Input 2 4 6 3 7 3 1 2 3 4 5 6 7 8 9 -1 Sample Output 11 15 Source |

[Submit] [Go Back] [Status] [Discuss]

All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di

Any problem, Please Contact Administrator