Compilare: main.cpp: In function 'int main()': main.cpp:68:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < verticalSegments.size() - 1; ++i) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:69:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i + 1; j < verticalSegments.size(); ++j) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:72:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < horizontalSegments.size(); ++k) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:94:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < horizontalSegments.size() - 1; ++i) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:95:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i + 1; j < horizontalSegments.size(); ++j) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:98:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < verticalSegments.size(); ++k) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~