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#include<bits/stdc++.h>using namespace std;#define inf 0x3f3f3f3fconst int maxn=1e5+9;int e_gcd(int a,int b,int &x,int &y){ if(!b){ x=1; y=0; return a; } int gcd=e_gcd(b,a%...

#include&lt;bits/stdc++.h&gt;using namespace std;#define inf 0x3f3f3f3fconst int maxn=1e5+9;#define LL long longint e_gcd(int a,int b,int &amp; x,int &amp;y){ if(!b){ x=1; y=...