ZOJ-1954

#include<stdio.h>

int main()
{
int dir[6][2] =
{
{ -1, 1 },
{ -1, 0 },
{ 0, -1 },
{ 1, -1 },
{ 1, 0 },
{ 0, 1 } };
int x[100000], y[100000];
x[1] = y[1] = 0;
int index = 2, i, j, circle = 1;
while (index < 100000)
{
x[index] = x[index - 1] + dir[5][0];
y[index] = y[index - 1] + dir[5][1];
index++;
for (i = 0; i < circle - 1 && index < 100000; i++)
{
x[index] = x[index - 1] + dir[0][0];
y[index] = y[index - 1] + dir[0][1];
index++;
}
for (j = 1; j < 6 && index < 100000; j++)
for (i = 0; i < circle && index < 100000; i++)
{
x[index] = x[index - 1] + dir[j][0];
y[index] = y[index - 1] + dir[j][1];
index++;
}
circle++;
}
while (scanf("%d", &i) != EOF)
printf("%d %d\n", x[i], y[i]);
return 0;
}