shunfurh 于 2017.04.20 17:23 提问

Array Slicing

Array slicing is an operation that extracts certain elements from an array and packages them as another array. Now you're asked to implements the array slicing operations for a new programming language -- eggache* (pronounced "eggache star"). The grammar of array slicing in eggache* is:
[ begin : end ] = x1, x2, ..., xk, ...

where begin ≤ end are indices indicating the range of slice. Redundant whitespaces should be ignored. For each operation, the original slice should be printed first, then these elements will be replaced with the new elements provided. See sample for more details.
Input

There is only one case for this problem, which contains about 50 lines of array slicing operations. It's guaranteed that all operations are valid and the absolute values of all integers never exceed 100. The array is empty ([]) before the first operation.

Output

The output produced by array slicing operations in the eggache* programming language.

Sample Input

[ 0 : 0] = 1 2 3 4 5 6 7 8 9
[ 1 : 1] = -1
[ 1 : 1] =
[ 0 : 8] = 9 8 7 6 5 4 3 2 1
[ 2 : 8] = -2, -3, -5, -7
[ 0 : 9] = 000
[ 0 : 1] = 1, 2, 8
[ 2 : 2] = 4
[ 0 : 4] =
Sample Output

1, -1, 2, 3, 4, 5, 6, 7
7, 6, 5, 4, 3, 2
9, 8, -2, -3, -5, -7, 1, 8, 9
0

1, 2, 4, 8

1个回答

caozhy      2017.05.05 12:17