Compilare: user.cpp: In function ‘int main()’: user.cpp:29:25: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2000002]’ [-Wformat=] scanf( "%s%s",&A,&B ); ^ user.cpp:29:25: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[2000002]’ [-Wformat=] user.cpp:20:18: warning: unused variable ‘j’ [-Wunused-variable] int n, m, i, j, x, y, p1, p2; ^ user.cpp:20:21: warning: unused variable ‘x’ [-Wunused-variable] int n, m, i, j, x, y, p1, p2; ^ user.cpp:20:24: warning: unused variable ‘y’ [-Wunused-variable] int n, m, i, j, x, y, p1, p2; ^ user.cpp:17:41: 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:18:43: 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:29:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%s%s",&A,&B ); ^