题目描述:
LeetCode 802. Find Eventual Safe States
In a directed graph, we start at some node and every turn, walk along a directed edge of the graph. If we reach a node that is terminal (that is, it has ...
LeetCode 802. Find Eventual Safe States
In a directed graph, we start at some node and every turn, walk along a directed edge of the graph. If we reach a node that is terminal (that is, it has ...
LeetCode 801. Minimum Swaps To Make Sequences Increasing
We have two integer sequences A
and B
of the same non-zero length.
We are allowed to swap elements A[i]
and B[i]
. Note that both elements are in ...
LeetCode 800. Similar RGB Color
In the following, every capital letter represents some hexadecimal digit from 0
to f
.
The red-green-blue color "#AABBCC"
can be written as "#ABC"
in shorthand. For example, "#15c"
is shorthand for the ...