Compilare: user.cpp: In function ‘int main()’: user.cpp:7:18: warning: unused variable ‘p’ [-Wunused-variable] int n,k,i,j,x,p,an,y; ^ user.cpp:7:20: warning: unused variable ‘an’ [-Wunused-variable] int n,k,i,j,x,p,an,y; ^ user.cpp:5:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kmax.in","r",stdin); ^ 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("kmax.out","w",stdout); ^ user.cpp:8:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&k,&r); ^