Wrong Answer
/in/foo.cc: In function 'void Dfs(int, double)':
/in/foo.cc:33:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0; i<edges[Now].size(); i++) {
~^~~~~~~~~~~~~~~~~~
/in/foo.cc: In function 'void Dfs(int, double)':
/in/foo.cc:33:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0; i<edges[Now].size(); i++) {
~^~~~~~~~~~~~~~~~~~
