http://acm.timus.ru/problem.aspx?space=1&num=1180

ural 1180 Stone Game_i++ural 1180 Stone Game_编程_02
 1 #include <cstdio>
 2 #include <cstring>
 3 #include <algorithm>
 4 using namespace std;
 5 
 6 int main()
 7 {
 8     char s1[300];
 9     scanf("%s",s1);
10     int k=strlen(s1);
11     int sum=0;
12     for(int i=0; i<k; i++)
13     {
14         sum+=(s1[i]-'0');
15     }
16     if(sum%3==0)
17         printf("2\n");
18     else
19         printf("1\n%d\n",sum%3);
20     return 0;
21 }
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