Compilare: user.cpp: In function ‘int main()’: user.cpp:4:79: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mere.in","r",stdin),freopen("mere.out","w",stdout),scanf("%d",&t); ^ user.cpp:4:79: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:4:79: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:6:93: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k),r=n/k,printf("%s\n",r%2||(r%2==0&&n%k>0)?"Santa Claus":"Remiza"); ^