Compilare: user.cpp: In function ‘void prodmare(short int*, int, short int*, int, short int*, int&)’: user.cpp:66:12: warning: unused variable ‘p1’ [-Wunused-variable] int i,j,p1,p2; ^ user.cpp:66:15: warning: unused variable ‘p2’ [-Wunused-variable] int i,j,p1,p2; ^ user.cpp:67:13: warning: unused variable ‘T’ [-Wunused-variable] long int T=0; ^ user.cpp: In function ‘int main()’: user.cpp:105:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d %d",&n,&k); ^