Compilare: user.cpp: In function ‘void test_more()’: user.cpp:173:15: warning: variable ‘l’ set but not used [-Wunused-but-set-variable] int i, j, l; ^ user.cpp: In function ‘int main()’: user.cpp:224:52: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infinitepatternmatching.in","r",stdin); ^ user.cpp:225:54: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infinitepatternmatching.out","w",stdout); ^ user.cpp:227:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",B + 1); ^