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| #include <bits/stdc++.h>
using namespace std;
const double eps = 1e-10; const double pi = 3.1415926535897932384626433832795; const double eln = 2.718281828459045235360287471352;
#define f(i, a, b) for (int i = a; i <= b; i++) #define scan(x) scanf("%d", &x) #define mp make_pair #define pb push_back #define lowbit(x) (x&(-x))
#define fi first #define se second #define SZ(x) int((x).size()) #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define summ(a) (accumulate(all(a), 0ll))
typedef unsigned long long ull; typedef pair<int,int> pii; typedef vector<int> vi;
using ll=long long; using a3=std::array<int,3>;
ll n,q,a[(int)1e5+9],cnt[(int)1e5+9],l=1,r,belong[(int)1e5+9],fk,ans[(int)1e5+9],sum; int main() { ios::sync_with_stdio(false); cin.tie(0); cin>>n>>q; for(int i=1;i<=n;++i)cin>>a[i]; fk=ceil(n/sqrt(q)); for(int i=1;i<=n;++i)belong[i]=(i-1)/fk+1; vector<a3> v; for(int i=1,x,y;i<=q;++i){ cin>>x>>y; v.push_back({x,y,i}); } sort(all(v),[](const a3& aa,const a3& bb){return belong[aa[0]]==belong[bb[0]]?(belong[aa[0]]&1)^(aa[1]>bb[1]):belong[aa[0]]<belong[bb[0]];});
for(auto &&[aa,bb,cc]:v){ while(l>aa)sum+=(++cnt[a[--l]]==1); while(r<bb)sum+=(++cnt[a[++r]]==1); while(l<aa)sum-=(--cnt[a[l++]]==0); while(r>bb)sum-=(--cnt[a[r--]]==0); ans[cc]=sum==bb-aa+1; } for(int i=1;i<=q;++i)cout<<(ans[i]?"Yes\n":"No\n"); return 0; }
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