BFS-Shortest Path

[S18LPC-OL0031 (Shrey Agarwal)]

Ques link :https://hack.codingblocks.com/contests/c/471/763
my code : https://ide.codingblocks.com/#/s/28585
I am getting WA. Please help me to find the mistake.

[Abhishek-Vanjani-1385688111468238 (Abhishek Vanjani)]

https://ide.codingblocks.com/#/s/28757

i have commented the mistakes.

1. visited array is not used
2. edges should be bidirectional.

[S18LPC-OL0031 (Shrey Agarwal)]

Thank you I got my mistake.