Compilare: main.cpp: In function 'int main()': main.cpp:33:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < lines.size(); i++) ~~^~~~~~~~~~~~~~ main.cpp:36:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int ind = 0; ind < min(lines[i].size(), lines[0].size()); ind++) ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:53:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int lineIndex = 0; lineIndex < lines.size(); lineIndex++) ~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:56:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int wordIndex = 0; wordIndex < min(lines[0].size(), line.size()); wordIndex++) ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:64:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int ind = 0; ind < min(lines[highest].size(), lines[0].size()); ind++) ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~