Compilare: main.cpp: In function 'int main()': main.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=v[i].vec.size();++j) ~^~~~~~~~~~~~~~~~~ main.cpp:118:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ind1>=v[i].vec.size()) ~~~~^~~~~~~~~~~~~~~~~ main.cpp:120:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(ind2>=v[i+2].vec.size()) ~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:144:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ind1>=v[i].vec.size()) ~~~~^~~~~~~~~~~~~~~~~ main.cpp:146:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(ind2>=v[i+2].vec.size()) ~~~~^~~~~~~~~~~~~~~~~~~