Compilare: main.cpp: In function 'int main()': main.cpp:586:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("petrick.in","r",stdin); ^ main.cpp:587:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("petrick.out","w",stdout); ^ main.cpp:589:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:593:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",piece); ^ main.cpp:594:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",colour); ^ main.cpp:595:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d ",&l,&c); ^ main.cpp: In function 'void movekingb(int, int)': main.cpp:233:29: warning: iteration 8 invokes undefined behavior [-Waggressive-loop-optimizations] int newl=l+diking[k1]; ~~~~~~~~~^ main.cpp:231:21: note: within this loop for(int k1=0; k1<=8; ++k1) ~~^~~