Compilare: user.cpp: In function ‘void sufix_creation()’: user.cpp:11:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( j != strlen(pattern)) ^ user.cpp: In function ‘void read()’: user.cpp:42:36: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2000003]’ [-Wformat=] scanf("%s %s",&pattern,&search1); ^ user.cpp:42:36: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[2000003]’ [-Wformat=] user.cpp: In function ‘void kmp()’: user.cpp:49:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < strlen(search1); i++) ^ user.cpp:55:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j == strlen(pattern)) ^ user.cpp: In function ‘void read()’: user.cpp:40:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kmp.in","r",stdin); ^ user.cpp:41:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kmp.out","w",stdout); ^ user.cpp:42:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s %s",&pattern,&search1); ^