Compilare: user.cpp: In function ‘int main()’: user.cpp:27:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, ver, curr; ^ user.cpp:27:15: warning: unused variable ‘ver’ [-Wunused-variable] int i, j, ver, curr; ^ user.cpp:27:20: warning: unused variable ‘curr’ [-Wunused-variable] int i, j, ver, curr; ^ user.cpp:28:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in", "rt", stdin); ^ user.cpp:29:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "wt", stdout); ^ user.cpp:31:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s %s", A, B); ^