Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:96:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<room_link[i].size();j++){
~^~~~~~~~~~~~~~~~~~~~
/in/foo.cc:119:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<room_link[i].size();j++){
~^~~~~~~~~~~~~~~~~~~~
/in/foo.cc: In function 'bool GoN(int)':
/in/foo.cc:76:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
