Time Exceeded
/in/foo.cc: In function 'void SPFA()':
/in/foo.cc:15:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(j=0; j<A[u].size(); j++){
~^~~~~~~~~~~~
/in/foo.cc: In function 'void SPFA()':
/in/foo.cc:15:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(j=0; j<A[u].size(); j++){
~^~~~~~~~~~~~
