Compilare: main.cpp: In function 'void Precalc()': main.cpp:20:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < P.size(); ++i) ~~^~~~~~~~~~ main.cpp: In function 'void Read()': main.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < T.size(); ++i) ~~^~~~~~~~~~ main.cpp:38:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j == P.size() - 1) ~~^~~~~~~~~~~~~~~ main.cpp:50:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Pos.size(); ++i) ~~^~~~~~~~~~~~ main.cpp:31:9: warning: variable 'i' set but not used [-Wunused-but-set-variable] int i, j; ^