PersonalCorpus 版 (精华区)
1217371 Big Guava ... 10394 Accepted
0:03.280 20688 2002/11/05 12:54:21.007
void main()
{
#ifndef ONLINE_JUDGE
freopen("c:\\0acm\\uva\\contest11-2\\iB","r",stdin);
freopen("c:\\0acm\\uva\\contest11-2\\oB","w",stdout);
#endif
int i,j,k,t;
char *p;
int r[200010];
p=(char *)malloc(20000000);
memset(p,1,20000000);
for (i=3;i<20000000;i+=2) if (p[i]) {
k=i+i;
for (j=i+k;j<20000000;j+=k) p[j]=0;
}
k=0;
for (i=3;i<19999998;i+=2)
if (p[i]&&p[i+2]) r[k++]=i;
while (scanf("%d\n",&i)==1) {
printf("(%d, %d)\n",r[i-1],r[i-1]+2);
}
free(p);
}
Powered by KBS BBS 2.0 (http://dev.kcn.cn)
页面执行时间:2.442毫秒