Compilare: main.cpp: In function 'int main()': main.cpp:78:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:85:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:97:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size()-1; ++i) ~~^~~~~~~~~~~~ main.cpp:105:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:112:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:119:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size()-1; ++i) ~~^~~~~~~~~~~~ main.cpp:139:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:148:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:154:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size()-1; ++i) ~~^~~~~~~~~~~~~~ main.cpp:155:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i+1; j < fat.size(); ++j) ~~^~~~~~~~~~~~ main.cpp:162:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size(); ++i) ~~^~~~~~~~~~~~ main.cpp:168:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size()-1; ++i) ~~^~~~~~~~~~~~~~ main.cpp:169:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i+1; j < fat.size(); ++j) ~~^~~~~~~~~~~~