Start: Jun, 28, 2019 08:42:00
2019杭州师范大学第一届程序设计竞赛新生赛
End: Jun, 28, 2019 11:42:00
Time elapsed:
Time remaining:

Problem_ID: D
Result: Accepted
Time: 81ms
Memory: 1712kB
In contest: 1276

#include<iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<map>
#include<cstdlib>
#include<string>
#include<vector>
#include<set>
#include<queue>
using namespace std;
const int maxn=1e5+50;
const int mod=998244353;
const int INF=0x3f3f3f3f;
int gcd(int a,int b)
{
	return b==0?a:gcd(b,a%b);
}

int main()
{
	int n,q;
	scanf("%d %d",&n,&q);
	for(int i=1;i<=q;i++)
	{
		int s,t;
		scanf("%d %d",&s,&t);
		if(s>=t)
		{
			int temp=s;
			s=t;
			t=temp;
		}
		if(gcd(s,t)==1) printf("1\n");
		else printf("2\n");
	}
	return 0;
}