Timus Problem 1209 Solution

Timus Problem Solution

#include<stdio.h>

#include<math.h>

 unsigned long a[70000];

int main()

{

unsigned long i,k,n;

long double l;

scanf("%lu\n",&n);

for(i=0;i<n;i++)

{

scanf("%lu",&a[i]);

}

for(i=0;i<n;i++)

{

l=((sqrt(-7+8*a[i])-1)/ 2);

k=l;

if(l==k)

printf("1 ");

else

printf("0 ");

}

return 0;

}

 

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