foo.cc: In function 'int findimax(std::vector<int>&)':
foo.cc:7:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=1;i<a.size();i++)
~^~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:39:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<a.size();i++)
~^~~~~~~~~
foo.cc:42:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<b.size();i++)
~^~~~~~~~~
自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。