- Time limit: 1.00 s
- Memory limit: 512 MB
Consider a network consisting of n computers and m connections. Each connection specifies how fast a computer can send data to another computer.
Kotivalo wants to download some data from a server. What is the maximum speed he can do this, using the connections in the network?
The first input line has two integers n and m: the number of computers and connections. The computers are numbered 1,2,\dots,n. Computer 1 is the server and computer n is Kotivalo's computer.
After this, there are m lines describing the connections. Each line has three integers a, b and c: computer a can send data to computer b at speed c.
Print one integer: the maximum speed Kotivalo can download data.
- 1 \le n \le 500
- 1 \le m \le 1000
- 1 \le a,b \le n
- 1 \le c \le 10^9
4 5 1 2 3 2 4 2 1 3 4 3 4 5 4 1 3