1994个8除以26余数是几

1994个8除以26余数是几

写了一小段辅助程序,终于解决了.答案为10.因为每增加一个8,即相当于前N-1个8除以26的余数 乘以10加上8 再跟26算余数.简而言之,a[n]=(10*a[n-1]+8)%26,a[1]=8.当有1,2,3,4.个8时,余数为8,10,4,22,20,0的循环.所以,1994/6 余2,1994个8除以26余数,即为 10.附上程序(perl)while(){chomp;my($a,$b)=split;print $a divided by $b remains .$a%$b.\n;}运行结果：C:\Ren Shirui\Perl>perl testStrict.pl8 268 divided by 26 remains 888 2688 divided by 26 remains 10888 26888 divided by 26 remains 48888 268888 divided by 26 remains 2288888 2688888 divided by 26 remains 20888888 26888888 divided by 26 remains 08888888 268888888 divided by 26 remains 888888888 2688888888 divided by 26 remains 10888888888 26888888888 divided by 26 remains 4======以下答案可供参考======供参考答案1:1944乘以8再除以26=613.5384615供参考答案2:14

对的，就是这个意思