Compilare: user.cpp: In function ‘int main()’: user.cpp:36:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < iese[y].size(); i++) { ^ user.cpp:50:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < iese[y].size(); i++) { ^ user.cpp:59:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < mult[x].size(); i++) { ^ user.cpp:72:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < mult[y].size(); i++) { ^ user.cpp:91:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < intra[y].size(); i++) { ^ user.cpp:101:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < intra[x].size(); i++) { ^