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表示这个SPJ有问题#include<stdio.h> #include<string.h> #include<queue> using namespace std; __int64 a[250]; int oper[2]={0,1}; __int64 bfs(int n) { int j; queue<__int64> q; q.push(1); while(!q.empty()) { __int64 head,next; head=q.front(); q.pop(); for(j=0;j<2;j++) { next=head*10+oper[j]; if(next%n==0) return next; q.push(next); } } } int main() { int i,j; //freopen("1.txt","w",stdout); memset(a,0,sizeof(a)); for(i=200;i>=1;i--) a[i]=bfs(i); //for(i=99;i>=1;i--) // a[i]=a[2*i]; while(scanf("%d",&i),i) printf("%I64d\n",a[i]); return 0; } 直接预处理全部打出来,竟然报wrong。 而不先预处理就AC了 Followed by:
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