Compilare: user.cpp: In function ‘int main()’: user.cpp:90:22: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘aa’ [-Wformat=] printf("%d",st[i]); ^ user.cpp:8:15: warning: unused variable ‘x’ [-Wunused-variable] int n,i,r,e,k,x,h,h2,p; ^ user.cpp:8:22: warning: unused variable ‘p’ [-Wunused-variable] int n,i,r,e,k,x,h,h2,p; ^ user.cpp:6:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] {freopen ("domino1.in","r",stdin); ^ user.cpp:7:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("domino1.out","w",stdout); ^ user.cpp:9:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&r,&e); ^ user.cpp:11:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&v[i].x,&v[i].y); ^