Compilare: user.cpp: In function ‘int main()’: user.cpp:49:18: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int p = 1 << k + 1; ^ user.cpp:53:14: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] p = 1 << k + 1; ^ user.cpp: In function ‘char getch()’: user.cpp:11:40: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread( bufferr, 10010, 1, fi ); ^