/* * ===================================================================================== * * Filename: hdu2053.c * * Description: * * Version: 1.0 * Created: 2013年11月17日 22时05分07秒 * Revision: none * Compiler: gcc * * Author: Wenxian Ni (Hello World~), niwenxianq@qq.com * Organization: AMS/ICT *Switch Game Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 9223 Accepted Submission(s): 5515 Problem Description There are many lamps in a line. All of them are off at first. A series of operations are carried out on these lamps. On the i-th operation, the lamps whose numbers are the multiple of i change the condition ( on to off and off to on ). Input Each test case contains only a number n ( 0< n<= 10^5) in a line. Output Output the condition of the n-th lamp after infinity operations ( 0 - off, 1 - on ). Sample Input 1 5 Sample Output 1 0 Hint hint Consider the second test case: The initial condition : 0 0 0 0 0 … After the first operation : 1 1 1 1 1 … After the second operation : 1 0 1 0 1 … After the third operation : 1 0 0 0 1 … After the fourth operation : 1 0 0 1 1 … After the fifth operation : 1 0 0 1 0 … The later operations cannot change the condition of the fifth lamp any more. So the answer is 0. * ===================================================================================== */ #include <stdio.h> int main() { int n; int i; int count; while(~scanf("%d",&n)) { count = 0; for(i=1;i<=n;i++) { if(n%i == 0) count++; } if(count%2==0) printf("0 "); else printf("1 "); } return 0; }