hdu1097

#include <stdio.h>

int calc(int a, int b)
{
if(a==0 || a==1 || a==5 || a==6) return a;
if(a==2)
{
if(b%4==1) return 2;
if(b%4==2) return 4;
if(b%4==3) return 8;
if(b%4==0) return 6;
}
if(a==3)
{
if(b%4==1) return 3;
if(b%4==2) return 9;
if(b%4==3) return 7;
if(b%4==0) return 1;
}
if(a==4)
{
if(b%2==1) return 4;
if(b%2==0) return 6;
}
if(a==7)
{
if(b%4==1) return 7;
if(b%4==2) return 9;
if(b%4==3) return 3;
if(b%4==0) return 1;
}
if(a==8)
{
if(b%4==1) return 8;
if(b%4==2) return 4;
if(b%4==3) return 2;
if(b%4==0) return 6;
}
if(a==9)
{
if(b%2==1) return 9;
if(b%2==0) return 1;
}
}

int main()
{
int a,b;
while(scanf("%d%d",&a,&b)!=EOF)
{
printf("%d\n",calc(a%10,b));
}
return 0;
}

时间: 2024-08-15 02:06:34

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