Compilare: user.cpp: In function ‘char* check(int, int)’: user.cpp:10:16: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] return "imposibil"; ^ user.cpp:21:16: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] return "posibil"; ^ user.cpp: In function ‘int main()’: user.cpp:27:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("carte2.in","r",stdin); ^ user.cpp:28:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("carte2.out","w",stdout); ^ user.cpp:30:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:33:59: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d %d",&A,&B,&va[0],&va[1],&va[2]); ^