Compilare: user.cpp: In function ‘int umplere(int, int, int)’: user.cpp:37:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:72:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(S[i].size()<k) ^ user.cpp:90:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(S[z].size()<k) ^ user.cpp:97:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(S[i].size()>=k) ^