Compilare: user.cpp: In function ‘void Precompute()’: user.cpp:27:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,value; ^ user.cpp: In function ‘int main()’: user.cpp:65:22: warning: unused variable ‘i’ [-Wunused-variable] int tests,test,n,i,j,k; ^ user.cpp:63:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hprob.in","r",stdin); ^ user.cpp:64:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hprob.out","w",stdout); ^ user.cpp:67:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&tests); ^ user.cpp:69:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lf%lf%lf",&n,&p1,&p2,&p3); ^