Compilare: user.cpp: In function ‘int max_subarr(double, int, int, int)’: user.cpp:15:10: warning: unused variable ‘maxim’ [-Wunused-variable] double maxim = 0.0; ^ user.cpp: In function ‘int main()’: user.cpp:37:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &n, &l, &u); ^ user.cpp:39:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", c + i); ^ user.cpp:41:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", t + i); ^