Compilare: user.cpp: In function ‘void ver1(int)’: user.cpp:22:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<invers[k].size();i++) ^ user.cpp: In function ‘void rez(int)’: user.cpp:38:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<muchii[k].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:76:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<muchii[i].size();j++) ^