Compilare: main.cpp: In function 'bool RabinKarp(int, int, int, int)': main.cpp:37:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = len-1; i < a[ str ].size(); i++ ) { ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'bool subsecv(int)': main.cpp:70:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = len-1; i < a[ minLenStr ].size(); i++ ) { ~~^~~~~~~~~~~~~~~~~~~~~~~