Single Source Shortest Path

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Points: 7
Time limit: 1.0s
Memory limit: 256M

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Problem type

Solve the Single Source Shortest Path problem.

Input Specification

Line 1: N (2N1000) (vertices), M (1M5000) (bidirectional edges)

Lines 2 to M+1: ui,vi,wi (1ui,viN,1wi10000), a bidirectional edge from ui to vi with weight wi. Multiple edges between the same pair of vertices may occur in the input.

Output Specification

Lines 1 to N: line i has the length of the shortest path from vertex 1 to vertex i. If no path exists, output -1.

Sample Input

Copy
4 3
1 2 2
1 3 5
2 3 2

Sample Output

Copy
0
2
4
-1

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