Compilare: user.cpp: In function ‘int main()’: user.cpp:21:25: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘char (*)[202]’ [-Wformat=] fscanf(f,"%d",&c); ^ user.cpp:15:9: warning: unused variable ‘m’ [-Wunused-variable] int m,n,i,nr,lg; ^ user.cpp:15:11: warning: unused variable ‘n’ [-Wunused-variable] int m,n,i,nr,lg; ^ user.cpp:15:13: warning: unused variable ‘i’ [-Wunused-variable] int m,n,i,nr,lg; ^ user.cpp:21:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&c); ^