HDU 5978 To begin or not to begin

题目：HDU 5978 To begin or not to begin

Ideas:

• Title means that: given n black ball, a red ball, red ball to get people to victory. If the upper hand advantage of the output 1, output 2 is no advantage, equality of opportunity and outputs 0.
• Several former probability can be hand counted, and then find the law. Or directly bold guess is odd 0, an even number.

Code:

 1 #include <cstdio>
 2 #include <cstring>
 3 #include <iostream>
 4 #include <sstream>
 5 #include <cmath>
 6 #include <algorithm>
 7 #include <string>
 8 #include <stack>
 9 #include <queue>
10 #include <vector>
11 #include <map>
12 using namespace std;
13 
14 int main()
15 {
16     int k;
17     while(~scanf("%d", &k))
18     {
19         if(k % 2 == 0)
20             printf("1\n");
21         else
22             printf("0\n");
23     }
24     return 0;
25 }