Submission #9245

#	Time	Username	Problem	Language	Result	Execution time	Memory
9245		yukariko	Wiring (kriii2_W)	C11	1 / 4	16 ms	8908 KiB

P

#include <stdio.h>
//#include <windows.h>

int q[1000001];
int w[1001][1001];

int main()
{
	int N;
	int k,p;
	int a,b;
	int i;
	int cnt; 
	scanf("%d",&N);
	q[0] = 0;
	cnt = 0;
	for(i=1;i<=N*N;i++)
	{
		q[i] = (q[i-1]+i)%N;
		a = q[i];
		b = q[i-1];
		if( (q[i]!=q[i-1]) && (w[a][b] != 1 ) )
		{
			cnt ++;
			w[a][b] = 1;
			w[b][a] = 1;
		}
	}
	printf("%d",cnt);
	//system("pause");
	
	return 0;
}

• Subtask 1: 1 / 1
• Subtask 2: 0 / 3