Compilare: user.cpp: In member function ‘std::pair<int, int> SufA::range(const char*) const’: user.cpp:133:29: warning: suggest parentheses around comparison in operand of ‘==’ [-Wparentheses] next = lr == elcp[i+lr] < cp; ^ user.cpp: In instantiation of ‘void SufA::sais(int, T, int) [with T = const char*]’: user.cpp:107:29: required from here user.cpp:25:5: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] || s[i] == s[i+1] && t[i+1]; ^ user.cpp: In instantiation of ‘void SufA::sais(int, T, int) [with T = int*]’: user.cpp:85:22: required from ‘void SufA::sais(int, T, int) [with T = const char*]’ user.cpp:107:29: required from here user.cpp:25:5: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] user.cpp: In function ‘int main()’: user.cpp:186:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.in", "r", stdin); ^ user.cpp:187:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.out", "w", stdout); ^ user.cpp:189:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s); ^ user.cpp:199:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", t); ^