Compilare: main.cpp: In function 'int main()': main.cpp:37:9: warning: variable 'dx' set but not used [-Wunused-but-set-variable] int dx,dy; ^~ main.cpp:37:12: warning: variable 'dy' set but not used [-Wunused-but-set-variable] int dx,dy; ^~ main.cpp:11:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("gradina3.in","r",stdin); ^ main.cpp:12:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("gradina3.out","w",stdout); ^ main.cpp:14:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d",&n,&p,&k); ^ main.cpp:17:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&x,&y); ^