Compilare: user.cpp: In function ‘int main()’: user.cpp:48:19: warning: unused variable ‘plusFives’ [-Wunused-variable] int N, P, i = 1, plusFives, size; ^ user.cpp:48:30: warning: unused variable ‘size’ [-Wunused-variable] int N, P, i = 1, plusFives, size; ^ user.cpp:50:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &P); ^