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1) a first number is always >0 except N=5
2) long types of numbers give AC Can you give some tests, please? Think about the parallel case for even number of vertices. WA..
who can give some test cases?
#include<stdio.h>
#include<stdlib.h>
int main()
{
long long n,m;
scanf("%I64d",&n);
m=n*(n-3)/2;
if (n % 2==1)
printf("%I64d 0\n",m);
if (n % 2==0)
{
if (n==4)printf("0 2\n");
else
printf("%I64d %I64d\n",m,m);
}
system("pause");
return 0;
}
Edited by author 20.10.2013 09:53 n=4
n=5
n=6 I think that number of perpendicular diagonals for N-polygon is equal to 0 for every odd N. I don't say the same about parallel diagonals in regular N-polygon for odd N.
Edited by author 24.10.2013 19:33 answers for tests:
n = 4
ans: 0 2
n = 5
ans: 0 0
n = 6
ans: 6 9
n = 7
ans: 14 0 Use long long instead int kostan3@spaces.ru poluchil ?
syuda toje skinyte rusyasoft@mail.ru
Edited by author 21.10.2013 19:17
Edited by author 21.10.2013 19:17 |
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