1128 self numbers.cpp

威士忌的HDU题解.大概有260多题的源码。对于学习非常有好处。

/*
1128 Self Numbers
Time Limit : 10000 ms  Memory Limit : 32768 K  Output Limit : 5120 K

GUN C++
*/
#include <iostream.h>
#include <stdio.h>
using namespace std;

const int MAX=1000000;

int main()
{
    int n,ca,generator;
    char num[MAX+1]={0};
	//cout<<sizeof(short)<<" "<<sizeof(char)<<endl;
    for(ca=1;ca<=MAX;ca++)
    {
        if(num[ca]==0)
        {
            n=ca;
            while(n<=MAX)
            {
                generator=n;
                while(n!=0 && generator<=MAX)
                {   generator+=n%10;n/=10;}
                if(num[generator]==0 && generator<=MAX)
                {   num[generator]=1;n=generator;}
                else
                {   break;}
            }
        }
        else
        {   continue;}
    }
    for(ca=1;ca<=MAX;ca++)
        if(num[ca]==0)
            //cout<<ca<<endl;
            printf("%d\n",ca);
    return 0;
}