프로그램 명: coci_tabli
제한시간: 1 초
Ivo has an N×N table. The table has the integers 1 through N2 inscribed in row-major order. The
following operations can be done on the table:
-
1. Rotate a row ? all cells in a single row are rotated right, so that the number in the last column
moves to the first.
-
2. Rotate a column ? all cells in a single column are rotated down, so that the number in the last
row moves to the first.
Ivo occasionally feels the urge to move a number X to cell (R, C) and proceeds as follows:
-
? While X is not in column C, rotate the row it is in.
-
? While X is not in row R, rotate the column it is in.
Here is an example of how to move number 6 to cell (3, 4), start from the initial configuration:
Ivo wants to move K numbers one after another. Write a program that calculates the number of
rotations needed.
입력
-
The first line contains two integers N (2 ≤ N ≤ 10000) and K (1 ≤ K ≤ 1000), the table dimension and
the number of moves.
-
Each of the following K lines contains three integers X (1 ≤ X ≤ N2), R and C (1 ≤ R, C ≤ N), the
description of one move Ivo wants to make. Ivo does the moves in the order in which they are given.
출력
Output K lines; for each move, output the number of rotations needed.
입출력 예
input
4 1
6 3 4
output
3
input
4 2
6 3 4
6 2 2
output
3
5
input
5 3
1 2 2
2 2 2
12 5 5
output
2
5
3
출처:coci/2008-2009/regional
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