Pray god help novice, problems on the pictures,

CodePudding user response:

Literally baidu a judgment whether the prime function of the ah

CodePudding user response:

To get to 2000000000, print it out, time is a little long, for reference:

 # include & lt; Stdio. H> 

Int main () 

{
Int x, m, n, CNT=0; 
Bool flag; 
The scanf (" % d ", & amp; N); 
For (x=2; X<=n; X++) 
{
Flag=true; 
For (m=2; M * m<=x; M++) 
{
If (x % m==0) 
{
Flag=false; 
break; 
} 
} 
If (flag==true) 
{
Cnt++; 
Printf (" % 4 d % c, x, CNT % 5==0? '\ n' : '); 
} 
} 
Printf (" % c % d \ n ", (CNT % 5!=0? B '\ n' : '\'), CNT); 

return 0; 
}