Compilare: user.cpp: In function ‘int count(int, int, int)’: user.cpp:57: warning: operation on ‘k’ may be undefined user.cpp:59: warning: operation on ‘k’ may be undefined user.cpp:63: warning: operation on ‘k’ may be undefined user.cpp: In function ‘int main()’: user.cpp:73: warning: too many arguments for format user.cpp:73: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result