Problem3357--【Div2】abc396d - Minimum XOR Path

3357: 【Div2】abc396d - Minimum XOR Path

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Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 1Submit Num: 2Statistics

Description



Sample Input Copy 

4 4
1 2 3
2 4 5
1 3 4
3 4 7

Sample Output Copy 

3

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Source/Category

Div2 位运算 图论 atcoder dfs 
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