Compilare: user.cpp: In function ‘int main()’: user.cpp:60:9: warning: unused variable ‘x’ [-Wunused-variable] int x; ^ user.cpp:58:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(re, "%d", &n); ^ user.cpp:63:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(re, "%d", &inpt[i].val); ^