Compilare: user.cpp: In function ‘int main()’: user.cpp:64:24: warning: format ‘%lf’ expects argument of type ‘double*’, but argument 3 has type ‘long double*’ [-Wformat=] fscanf(IN,"%lf",&v[i]); ^ user.cpp:72:25: warning: format ‘%f’ expects argument of type ‘double’, but argument 3 has type ‘long double’ [-Wformat=] fprintf(OUT,"%.7f",H[1]); ^ user.cpp:61:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d%d",&R,&P); ^ user.cpp:64:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%lf",&v[i]); ^