Eroare de compilare: user.cpp: In function ‘int main(int, char**)’: user.cpp:13:2: error: ‘ofya’ was not declared in this scope ofya=(1<<n)-1; ^ user.cpp:21:7: error: ‘a’ was not declared in this scope if(a%2==1){ ^ user.cpp:23:19: error: ‘p’ was not declared in this scope printf("%d ", p); ^ user.cpp:26:4: error: ‘a’ was not declared in this scope a/=2; ^ user.cpp:27:6: error: ‘p’ was not declared in this scope ++p; ^ user.cpp:17:14: warning: unused variable ‘y’ [-Wunused-variable] int x=ofya,y=1; ^ user.cpp:6:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("submultimi.in", "r", stdin); ^ user.cpp:7:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("submultimi.out", "w", stdout); ^ user.cpp:11:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^