Compilare: main.cpp: In function 'int suffix_array(int, int)': main.cpp:20:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < suf.size(); ++ i) ~~^~~~~~~~~~~~ main.cpp:28:101: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((i < n - 1 && (i + (1 << (j - 1))) < n - 1) || (i >= n - 1 && (i + (1 << (j - 1))) < suf.size())) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sorted.size() - 1; ++ i) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:88:7: warning: unused variable 'stop' [-Wunused-variable] int stop = min (n, m) - 1; ^~~~ main.cpp: In function 'int suffix_array(int, int)': main.cpp:48:12: warning: 'pwstop' may be used uninitialized in this function [-Wmaybe-uninitialized] return pwstop; ^~~~~~