# include" iostream "
# include & lt; stdio.h> 
# include & lt; Iomanip> 
using namespace std; 
Bool judge (int I) 
{
Int j; 
If (I==2 | | I==3) 
return true; 
For (j=2; j<=SQRT (I); J++) 
{
If (I % j==0) 
return false; 
} 
return true; 
} 
Int main () 
{
Int the sum, N, I, N_count (0), dn. 
cin> N; 
for(i=2; i{
{if (judge (I)) 
{if (judge (I + 2)) 
N_count + +; 
} 
} 
} 
coutsystem("pause"); 
return 0; 

} 

Test point a is not correct, can you tell me the procedure where there are holes

CodePudding user response:

Reference:

 # include & lt; Math. H> 
# include & lt; Iostream. H> 
//# include & lt; stdio.h> 
//# include & lt; Iomanip> 

using namespace std; 
Bool judge (int I) 
{
Int j; 
If (i<=3) return i> 1;//if (I==2 | | I==3) return true; 
For (j=2; j<=SQRT (I); J++) 
{
If (I % j==0) 
return false; 
} 
return true; 
} 
Int main () 
{
Int the sum, N, I, N_count (0);//dn. 
cin> N; 
for(i=2; i<=N - 2; I++)//for (I=2; i{
If (judge (I) & amp; & Judge (I + 2)) {
N_count + +; 
} 
} 
coutsystem("pause"); 
return 0; 

}