Compilare: user.cpp: In function ‘int main()’: user.cpp:12:7: warning: unused variable ‘i’ [-Wunused-variable] int n,i,j,j2,i2,x,l,k; ^ user.cpp:12:9: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,j2,i2,x,l,k; ^ user.cpp:12:11: warning: unused variable ‘j2’ [-Wunused-variable] int n,i,j,j2,i2,x,l,k; ^ user.cpp:12:14: warning: unused variable ‘i2’ [-Wunused-variable] int n,i,j,j2,i2,x,l,k; ^ user.cpp:12:17: warning: unused variable ‘x’ [-Wunused-variable] int n,i,j,j2,i2,x,l,k; ^ user.cpp:16:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(inFile, "%d",&n); ^ user.cpp:18:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(inFile, "%s",s); ^ user.cpp:20:36: warning: array subscript is below array bounds [-Warray-bounds] else k=s[strlen(s-1)]-'0'; ^