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AC代码附上#include<stdio.h>
#include<math.h>
int prime_number(int a)
{
int i;
for(i=2;i<=sqrt(a);i++)
if((a%i)==0)return 0;
return 1;
}
int main(void)
{
long int n,i,a;
while(scanf("%ld",&n)!=EOF)
{
if(n==0)break;
a=0;
for(i=3;i<=n/2;i+=2)
{
if(prime_number(i)&&prime_number(n-i))
{
a=i;break;
}
}
if(a)printf("%ld = %ld + %ld\n",n,a,n-a);
else printf("Goldbach's conjecture is wrong.\n");
}
return 0;
}
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