Compilare: user.cpp: In function ‘void suffix_array()’: user.cpp:52: warning: array subscript has type ‘char’ user.cpp:53: warning: array subscript has type ‘char’ user.cpp: In function ‘void solve(int, int)’: user.cpp:149: warning: unused variable ‘nfp’ user.cpp: In function ‘int main()’: user.cpp:236: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:237: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:239: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:240: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:246: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:250: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result