Compilare: user.cpp: In function ‘char* oare(long int)’: user.cpp:36:17: warning: statement has no effect [-Wunused-value] pus[nmax - 1] == true; ^ user.cpp: In function ‘int main()’: user.cpp:87:25: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long int*’ [-Wformat=] fscanf(f,"%d", &car[i]); ^ user.cpp:78:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%s", str1); ^ user.cpp:79:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%s", str2); ^ user.cpp:80:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld", &M); ^ user.cpp:87:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d", &car[i]); ^