思路：用char[]存储输入，后用int[]逐位计算，根据乘法计算规则错位相加，用数组存储，然后考虑进位，最后倒序输出代码：#include<iostream>#include<cstring>usingnamespacestd;chara1[10001],b1[10001];inta[10001],b[10001],c[10001];intmain(){ cin>>a1>>b1; for