Compilare: user.cpp: In function ‘vector citire_vector(char*)’: user.cpp:20:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<a.n;i++) ^ user.cpp: In function ‘int main()’: user.cpp:60:35: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] a=citire_vector("algsort.in"); ^ user.cpp: In function ‘vector citire_vector(char*)’: user.cpp:19:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a.n); ^ user.cpp:21:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a.v[i]); ^