lozinke.cpp: In function 'bool find(const string&, const string&)':
lozinke.cpp:28:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < a.size(); i++)
~~^~~~~~~~~~
lozinke.cpp:31:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j = 0; j < b.size(); j++)
~~^~~~~~~~~~
lozinke.cpp:33:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(i + j >= a.size()) break;
~~~~~~^~~~~~~~~~~
lozinke.cpp:36:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(j == b.size() - 1) return true;
~~^~~~~~~~~~~~~~~
lozinke.cpp:30:8: warning: unused variable 'ok' [-Wunused-variable]
bool ok = false;
^~