Compilare: main.cpp: In function 'void mysort(int)': main.cpp:7:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] #define MASK (1 << 8) - 1 ~~~~~~~~~^~~ main.cpp:40:25: note: in expansion of macro 'MASK' nr = v[i] >> bits & MASK; ^~~~ main.cpp:7:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] #define MASK (1 << 8) - 1 ~~~~~~~~~^~~ main.cpp:52:26: note: in expansion of macro 'MASK' nr = cv[i] >> bits & MASK; ^~~~ main.cpp: In function 'int main()': main.cpp:65:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d", &n, &a, &b, &c); ^