Compilare: main.cpp: In function 'int main()': main.cpp:76:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:83:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:95:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size()-1; ++i) ~~^~~~~~~~~~~~ main.cpp:103:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:110:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:117:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size()-1; ++i) ~~^~~~~~~~~~~~ main.cpp:125:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size()-1; ++i) ~~^~~~~~~~~~~~~~ main.cpp:126:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i+1; j < fat.size(); ++j) ~~^~~~~~~~~~~~ main.cpp:133:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size(); ++i) ~~^~~~~~~~~~~~ main.cpp:139:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size()-1; ++i) ~~^~~~~~~~~~~~~~ main.cpp:140:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i+1; j < fat.size(); ++j) ~~^~~~~~~~~~~~