Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:25:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(k=0;k<m16.size();k++)
~^~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:25:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(k=0;k<m16.size();k++)
~^~~~~~~~~~~
