Compilare: main.cpp: In function 'void zet()': main.cpp:21:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 1; i < s.size(); i++ ) { ~~^~~~~~~~~~ main.cpp:28:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i + z[i] < s.size() && s[z[i]] == s[i + z[i]] ) { ~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 1; i < s.size(); i++ ) ~~^~~~~~~~~~ main.cpp:38:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d", &t ); ^