Compilare: main.cpp: In function 'int main()': main.cpp:97:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:104:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:116:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size()-1; ++i) ~~^~~~~~~~~~~~ main.cpp:124:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:131:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:138:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size()-1; ++i) ~~^~~~~~~~~~~~ main.cpp:158:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:167:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:173:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size()-1; ++i) ~~^~~~~~~~~~~~~~ main.cpp:174:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i+1; j < fat.size(); ++j) ~~^~~~~~~~~~~~ main.cpp:181:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size(); ++i) ~~^~~~~~~~~~~~ main.cpp:187:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fat.size()-1; ++i) ~~^~~~~~~~~~~~~~ main.cpp:188:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i+1; j < fat.size(); ++j) ~~^~~~~~~~~~~~