Compilare: user.cpp: In function ‘int maxOnesSubsequence(int*, int)’: user.cpp:8:6: warning: variable ‘max_index’ set but not used [-Wunused-but-set-variable] int max_index; ^ user.cpp: In function ‘int main()’: user.cpp:35:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.cpp:39:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d ", &(array[i])); ^