點擊打開鏈接
0 or 1
Time Limit: 6000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 2258 Accepted Submission(s): 555
Problem Description
Solving problem is a interesting thing. Yifenfei like to slove different problem,because he think it is a way let him more intelligent. But as we know,yifenfei is weak in math. When he come up against a difficult math problem, he always try to get a hand. Now
the problem is coming! Let we
define T(n) as the sum of all numbers which are positive integers can divied n. and S(n) = T(1) + T(2) + T(3)…..+T(n).
Input
The first line of the input contains an integer T which means the number of test cases. Then T lines follow, each line consists of only one positive integers n. You may assume the integer will not exceed 2^31.
Output
For each test case, you should output one lines of one integer S(n) %2. So you may see the answer is always 0 or 1 .
Sample Input
3
1
2
3
Sample Output
1
0
0
HintHint S(3) = T(1) + T(2) +T(3) = 1 + (1+2) + (1+3) = 8
S(3) % 2 = 0
Author
yifenfei
Source
奮斗的年代
都能在網上找到規律就是:凡是“能夠被完全開方”或者“被2整除後能夠完全被開方”的數,它的(T(N) % 2)都是1。
從此我的博客裡面多了一個規律的分組。
//15MS 228K
#include
#include
int main()
{
int t;
scanf("%d",&t);
while(t--)
{
int n,count=0;
scanf("%d",&n);
for(int i=1;i<=n;i++)
{
if(i*i*2<=n)count++;
if(i*i<=n)count++;
else break;
}
printf("%d\n",count%2);
}
return 0;
}