// Problem: CF1110E Magic Stones // Contest: Luogu // URL: https://www.luogu.com.cn/problem/CF1110E // Memory Limit: 250 MB // Time Limit: 1000 ms // // Powered by CP Editor (https://cpeditor.org)
#include<bits/stdc++.h> usingnamespace std; #define int long long inlineintread(){int x=0,f=1;char ch=getchar(); while(ch<'0'||ch>'9'){if(ch=='-')f=-1; ch=getchar();}while(ch>='0'&&ch<='9'){x=(x<<1)+ (x<<3)+(ch^48);ch=getchar();}return x*f;} //#define M //#define mo #define N 200010 int n, m, i, j, k; int a[N]; map<int, int>mp;