791. Merge K sorted Arrays
0
Medium
Given K sorted arrays, each containing N elements, merge them into a single sorted array.
Input Format
The first line of input consists of two space-separated integers, K and N. The next K*N lines contain space-separated integers representing the elements of the arrays.
Output Format
The output should be a single line consisting of space-separated numbers.
Example
Input
3 4
1 3 5 7
2 4 6 8
0 9 10 11
Output
0 1 2 3 4 5 6 7 8 9 10 11
Constraints
The elements in each array are less than or equal to |10^15|. The number of elements in each array, N, is less than or equal to 10^5. The number of arrays, K, is less than or equal to 10.
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