Compilare: main.cpp: In function 'void Suffix_Array()': main.cpp:19:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i <= sir.size(); ++ i ) { ~~^~~~~~~~~~~~~ main.cpp:22:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sir.size(); ++ i ) { ~~^~~~~~~~~~~~ main.cpp:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sir.size(); ++ i ) { ~~^~~~~~~~~~~~ main.cpp:37:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; (1<<(i-1)) <= sir.size(); ++ i ) { ~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:38:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < sir.size(); ++ j ) { ~~^~~~~~~~~~~~ main.cpp:39:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] K[ j ] = {{Suffix[i-1][j], (j + (1<<(i-1)) < sir.size() ? Suffix[i-1][j+(1<<(i-1))] : 0) }, j}; ~~~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp:46:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 1; j < sir.size(); ++ j ) { ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i <= B.size() - A.size(); ++ i ) { ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:81:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (val >= A.size()) { ~~~~^~~~~~~~~~~