杭电acm 1061

#include <iostream> #include <math.h> using namespace std; int main() { int a[10][4]={{0},{1},{6,2,4,8},{1,3,9,7},{6,4},{5},{6},{1,7,9,3},{6,8,4,2},{1,9}},m,n,j; while(cin>>j) { while(cin>>n) { m=n%10; if(m==0||m==1||m==5||m==6) cout<<m<<endl; else if(m==4||m==9) cout<<a[m][n%2]<<endl; else if(m==2||m==7||m==8||m==3) cout<<a[m][n%4]<<endl; } } return 0; }