Compilare: user.cpp: In function ‘int main()’: user.cpp:12:19: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2000001]’ [-Wformat=] scanf("%s",&s1); ^ user.cpp:13:19: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2000001]’ [-Wformat=] scanf("%s",&s2); ^ user.cpp:15:25: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while (p=strstr(p,s1)) ^ user.cpp:12:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s1); ^ user.cpp:13:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s2); ^