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#define PROBLEM "https://judge.yosupo.jp/problem/staticrmq" #include "Template/template.hpp" #include "DataStructure/disjointsparsetable.hpp" int f(int a,int b){return min(a,b);} int main(){ int n,q; cin>>n>>q; vector<int> a(n); rep(i,0,n)cin>>a[i]; DisjointSparseTable<int,f> st(a); while(q--){ int L,R; cin>>L>>R; cout<<st.query(L,R)<<'\n'; } return 0; }
#line 1 "Verify/LC_staticrmq-2.test.cpp" #define PROBLEM "https://judge.yosupo.jp/problem/staticrmq" #line 1 "Template/template.hpp" #include <bits/stdc++.h> using namespace std; #define rep(i, a, b) for (int i = (int)(a); i < (int)(b); i++) #define rrep(i, a, b) for (int i = (int)(b-1); i >= (int)(a); i--) #define ALL(v) (v).begin(), (v).end() #define UNIQUE(v) sort(ALL(v)), (v).erase(unique(ALL(v)), (v).end()) #define SZ(v) (int)v.size() #define MIN(v) *min_element(ALL(v)) #define MAX(v) *max_element(ALL(v)) #define LB(v, x) int(lower_bound(ALL(v), (x)) - (v).begin()) #define UB(v, x) int(upper_bound(ALL(v), (x)) - (v).begin()) using uint = unsigned int; using ll = long long int; using ull = unsigned long long; using i128 = __int128_t; using u128 = __uint128_t; const int inf = 0x3fffffff; const ll INF = 0x1fffffffffffffff; template <typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <typename T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return 1; } return 0; } template <typename T, typename U> T ceil(T x, U y) { assert(y != 0); if (y < 0) x = -x, y = -y; return (x > 0 ? (x + y - 1) / y : x / y); } template <typename T, typename U> T floor(T x, U y) { assert(y != 0); if (y < 0) x = -x, y = -y; return (x > 0 ? x / y : (x - y + 1) / y); } template <typename T> int popcnt(T x) { return __builtin_popcountll(x); } template <typename T> int topbit(T x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); } template <typename T> int lowbit(T x) { return (x == 0 ? -1 : __builtin_ctzll(x)); } #ifdef LOCAL #define show(...) _show(0, #__VA_ARGS__, __VA_ARGS__) #else #define show(...) true #endif template <typename T> void _show(int i, T name) { cerr << '\n'; } template <typename T1, typename T2, typename... T3> void _show(int i, const T1 &a, const T2 &b, const T3 &...c) { for (; a[i] != ',' && a[i] != '\0'; i++) cerr << a[i]; cerr << ":" << b << " "; _show(i + 1, a, c...); } template <class T, class U> ostream &operator<<(ostream &os, const pair<T, U> &p) { os << "P(" << p.first << ", " << p.second << ")"; return os; } template <typename T, template <class> class C> ostream &operator<<(ostream &os, const C<T> &v) { os << "["; for (auto d : v) os << d << ", "; os << "]"; return os; } #line 2 "DataStructure/disjointsparsetable.hpp" template<typename T,T (*f)(T,T)>struct DisjointSparseTable{ vector<vector<T>> buf; vector<int> height; DisjointSparseTable(const vector<T>& a){ int n=a.size(),LG=0; while((1<<LG)<=n)LG++; buf.assign(LG,vector<T>(n)); height.assign(1<<LG,0); rep(i,2,1<<LG)height[i]=height[i>>1]+1; rep(i,0,n)buf[0][i]=a[i]; rep(lg,1,LG){ int add=1<<lg; for(int j=0;j<n;j+=(add<<1)){ int pos=min(j+add,n); buf[lg][pos-1]=a[pos-1]; for(int k=pos-2;k>=j;k--)buf[lg][k]=f(a[k],buf[lg][k+1]); if(n<=pos)break; buf[lg][pos]=a[pos]; for(int k=pos+1;k<min(pos+add,n);k++)buf[lg][k]=f(buf[lg][k-1],a[k]); } } } T query(int L,int R){ if(L>=--R)return buf[0][L]; return f(buf[height[L^R]][L],buf[height[L^R]][R]); } }; /** * @brief Disjoint Sparse Table */ #line 5 "Verify/LC_staticrmq-2.test.cpp" int f(int a,int b){return min(a,b);} int main(){ int n,q; cin>>n>>q; vector<int> a(n); rep(i,0,n)cin>>a[i]; DisjointSparseTable<int,f> st(a); while(q--){ int L,R; cin>>L>>R; cout<<st.query(L,R)<<'\n'; } return 0; }