Verify/LC_staticrmq.test.cpp

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Last update: 2024-04-26 03:18:17+09:00
Problem: https://judge.yosupo.jp/problem/staticrmq

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Code

#define PROBLEM "https://judge.yosupo.jp/problem/staticrmq"

#include "Template/template.hpp"

#include "DataStructure/segtree.hpp"


int f(int a,int b){return min(a,b);}
int g(int a,int b){return b;}
int e(){return inf;}

int main(){
    int N,Q;
    cin>>N>>Q;
    vector<int> a(N);
    rep(i,0,N)cin>>a[i];

    SegmentTree<int,int,f,g,e> seg(N);
    seg.run(a);
    while(Q--){
        int L,R;
        cin>>L>>R;
        cout<<seg.query(L,R)<<'\n';
    }
    return 0;
}

#line 1 "Verify/LC_staticrmq.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/segtree.hpp"

template<typename M,typename N,M (*f)(M,M),M (*g)(M,N),M (*m1)()>struct SegmentTree{
    int n; vector<M> data;
    SegmentTree(int _n=0){
        n=1; while(n<_n)n<<=1; data.assign(2*n,m1());
    }
    void run(vector<M>& v){
        for(int i=0;i<(int)v.size();i++)data[i+n]=v[i];
        for(int k=n-1;k>0;k--)data[k]=f(data[2*k],data[2*k+1]);
    }
    void set(int k,const M &x){
        k+=n; data[k]=x;
        while(k>>=1)data[k]=f(data[2*k],data[2*k+1]);
    }
    void update(int k,const N &x){
        k+=n; data[k]=g(data[k],x);
        while(k>>=1)data[k]=f(data[2*k],data[2*k+1]);
    }
    M query(int a,int b){
        M L=m1(),R=m1();
        for(a+=n,b+=n;a<b;a>>=1,b>>=1){
            if(a&1)L=f(L,data[a++]);
            if(b&1)R=f(data[--b],R);
        }
        return f(L,R);
    }
    M operator[](const int &k)const{return data[k+n];}
};

/**
 * @brief Segment Tree
 */
#line 5 "Verify/LC_staticrmq.test.cpp"

int f(int a,int b){return min(a,b);}
int g(int a,int b){return b;}
int e(){return inf;}

int main(){
    int N,Q;
    cin>>N>>Q;
    vector<int> a(N);
    rep(i,0,N)cin>>a[i];

    SegmentTree<int,int,f,g,e> seg(N);
    seg.run(a);
    while(Q--){
        int L,R;
        cin>>L>>R;
        cout<<seg.query(L,R)<<'\n';
    }
    return 0;
}