Compilare: user.cpp: In function ‘int main()’: user.cpp:19:9: warning: unused variable ‘n’ [-Wunused-variable] int n,p5,p,st,dr,mij,zero; ^ user.cpp:19:11: warning: unused variable ‘p5’ [-Wunused-variable] int n,p5,p,st,dr,mij,zero; ^ user.cpp:22:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&p); ^