Compilare: user.cpp: In function ‘int main()’: user.cpp:13:15: warning: variable ‘t’ set but not used [-Wunused-but-set-variable] int i, j, t, sol = 0; ^ user.cpp:14:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &N); ^ user.cpp:16:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lf", &A[i]); ^