Compilare: user.cpp: In function ‘int main()’: user.cpp:28:68: warning: suggest parentheses around ‘+’ in operand of ‘&’ [-Wparentheses] hsh[i - l + 1] = (hsh[i - l] - p26[l - 1] * (s[i - l] - 'a') & (MOD - 1) + MOD) & (MOD - 1); ^ user.cpp:14:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("triopalindrom.in", "r", stdin); ^ user.cpp:15:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("triopalindrom.out", "w", stdout); ^ user.cpp:17:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s + 1); ^