SYCOJ#111、吉祥物

 1 #include<bits/stdc++.h>
 2 using namespace std;
 3 int n,x;
 4 int pos(int n)
 5 {
 6     int s=1,j=1;
 7     while(s<n)
 8     {
 9         s+=j++;
10      } 
11     return s;
12 }
13 int main()
14 {
15     scanf("%d",&n);
16     while(n--)
17     {
18         scanf("%d",&x);
19         if(x==pos(x)) cout<<"1"<<endl;
20         else cout<<"0"<<endl;
21      } 
22     return 0;
23 }