classSolution{public:boolisPalindrome(intx){intx1=x;intx2=x;intcount=0;intnum=0;intsum=0;while(x1>0)//得到未知整数的位数{x1=x1/10;count++;}for(inti=0;i<=count;i++){sum=sum*10+num;//逆置原整数num=x2%10;//除10取余数；x2=x2/10;}if(sum==x)returntrue;elsereturnfalse;}};