Compilare: user.cpp: In function ‘int main()’: user.cpp:37:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2000005]’ [-Wformat=] scanf("%s ", &WORD); ^ user.cpp:48:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2000005]’ [-Wformat=] scanf("%s ", &WORD); ^ user.cpp:28:10: warning: unused variable ‘c’ [-Wunused-variable] char c; ^ user.cpp:32:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in", "r", stdin); ^ user.cpp:33:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "w", stdout); ^ user.cpp:37:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ", &WORD); ^ user.cpp:48:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ", &WORD); ^