Result: Accepted
Time: 81ms
Memory: 1712kB
#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;
}