#include <stdio.h> int main() { long long n,t; while(scanf("%lld",&n) != EOF) { t = n; int sum1 = 0,sum2 = 0; while(t) { sum1 += t%10; t/=10; } t = n*n; while(t) { sum2 += t%10; t/=10; } printf("%d %d\n",sum1,sum2); } return ...

#include <iostream> using namespace std; class sum {public:   int summ(int a)     {int sum1=0;     while(a!=0)     {sum1+=a%10;     a=a/10;     }         return sum1;     } }; class mul {public:   int mult(int b)     {int sum2=0;     while(b!=0)     {sum2+=b%10;  ...

#include<iostream> using namespace std; int addnum(int n){ int sum = 0; while(n!=0){ sum = sum+n%10; n=n/10; } return sum; } int main(){ int n; while(cin>>n){ cout << addnum(n)<<" "<<addnum(n*n)<<endl; } return 0; } 纪念一下...