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Discussion of Problem
1209
. 1, 10, 100, 1000...
hhh
WA#1 help me!!
// Problem
1209. 1, 10, 100, 1000...
5 Jan 2009 23:39
#include <iostream>
using namespace std;
int main()
{ long long n,a[65550],i,k=1,b=1;
cin>>n;
for(i=0; i<n; i++) { cin>>a[i]; k=1; b=1;
while(k<=a[i]) { b+=k; k++; }
if(b==a[i]) cout<<1<<" ';
else cout<<0<<" "; }
return 0; }
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