Compilare: main.cpp: In function 'void radix_sort()': main.cpp:25:33: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses] ++fr[(it >> bk) & (base - 1) + 1]; ~~~~~~~~~~~^~~ main.cpp:32:38: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses] int buk = (it >> bk) & (base - 1) + 1; ~~~~~~~~~~~^~~ main.cpp: In function 'int main()': main.cpp:42:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("radixsort.in", "r", stdin); ^ main.cpp:43:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("radixsort.out", "w", stdout); ^