5 4
1 1 2 1 1
1 0 0 0 0
1 0 0 1 3
1 1 1 1 1
5 2
2 0 1 1 1
0 0 1 1 3
7 7
0 0 0 0 2 0 0
0 0 1 0 0 0 0
0 0 0 0 0 1 1
0 1 0 0 0 0 0 
0 0 0 0 1 0 0
0 0 0 0 0 0 0
0 0 0 0 0 3 0
10 10
1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 0 1 1
2 1 0 1 1 1 1 1 1 1
1 1 1 1 1 1 0 1 1 1
1 0 1 0 1 1 1 1 1 1 
1 1 1 1 1 3 1 0 1 1
1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 0 1
1 0 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1
2 1
3 2
6 6
1 0 0 2 1 0
1 1 0 0 0 0
0 0 0 0 0 3
0 0 0 0 0 0
1 0 0 0 0 1
0 1 1 1 1 1
6 1
1 1 2 1 1 3
6 1
1 0 2 1 1 3
12 1
2 0 1 1 1 1 1 1 1 1 1 3
13 1
2 0 1 1 1 1 1 1 1 1 1 1 3
0 0



ans：
4
-1
6
9
1
4
-1
4
10
-1

• 这组数据非常有用。THX (0) azhu981712 2009-11-24 14:47:15
• Re:我 ft R与C读入反了，居然一下数据只有一组不对…… (4) ZCDHJ 2018-08-10 23:55:39