結果
問題 | No.875 Range Mindex Query |
ユーザー | Haar |
提出日時 | 2019-10-24 01:45:41 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 222 ms / 2,000 ms |
コード長 | 3,544 bytes |
コンパイル時間 | 2,198 ms |
コンパイル使用メモリ | 205,600 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-07 15:49:17 |
合計ジャッジ時間 | 5,471 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 3 ms
5,376 KB |
testcase_02 | AC | 3 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 3 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 3 ms
5,376 KB |
testcase_11 | AC | 148 ms
5,376 KB |
testcase_12 | AC | 120 ms
5,376 KB |
testcase_13 | AC | 101 ms
5,376 KB |
testcase_14 | AC | 101 ms
5,376 KB |
testcase_15 | AC | 137 ms
5,376 KB |
testcase_16 | AC | 205 ms
5,376 KB |
testcase_17 | AC | 222 ms
5,376 KB |
testcase_18 | AC | 216 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> #define LLI long long int #define FOR(v, a, b) for(LLI v = (a); v < (b); ++v) #define FORE(v, a, b) for(LLI v = (a); v <= (b); ++v) #define REP(v, n) FOR(v, 0, n) #define REPE(v, n) FORE(v, 0, n) #define REV(v, a, b) for(LLI v = (a); v >= (b); --v) #define ALL(x) (x).begin(), (x).end() #define RALL(x) (x).rbegin(), (x).rend() #define ITR(it, c) for(auto it = (c).begin(); it != (c).end(); ++it) #define RITR(it, c) for(auto it = (c).rbegin(); it != (c).rend(); ++it) #define EXIST(c,x) ((c).find(x) != (c).end()) #define fst first #define snd second #define popcount __builtin_popcount #define UNIQ(v) (v).erase(unique(ALL(v)), (v).end()) #define bit(i) (1LL<<(i)) #ifdef DEBUG #include <misc/C++/Debug.cpp> #else #define dump(...) ((void)0) #endif #define gcd __gcd using namespace std; template <class T> constexpr T lcm(T m, T n){return m/gcd(m,n)*n;} template <typename I> void join(ostream &ost, I s, I t, string d=" "){for(auto i=s; i!=t; ++i){if(i!=s)ost<<d; ost<<*i;}ost<<endl;} template <typename T> istream& operator>>(istream &is, vector<T> &v){for(auto &a : v) is >> a; return is;} template <typename T, typename U> bool chmin(T &a, const U &b){return (a>b ? a=b, true : false);} template <typename T, typename U> bool chmax(T &a, const U &b){return (a<b ? a=b, true : false);} template <typename T, size_t N, typename U> void fill_array(T (&a)[N], const U &v){fill((U*)a, (U*)(a+N), v);} struct Init{ Init(){ cin.tie(0); ios::sync_with_stdio(false); } }init; template <typename Monoid> class SegmentTree{ private: int size; vector<Monoid> vec; inline Monoid aux(int x, int y, int i, int l, int r){ if(r<=x || y<=l) return Monoid::identity(); else if(x<=l && r<=y) return vec[i]; else return Monoid::op(aux(x,y,i*2+1,l,(l+r)/2), aux(x,y,i*2+2,(l+r)/2,r)); }; public: SegmentTree(int n){ size = 1; while(size < n) size *= 2; size = size*2-1; vec = vector<Monoid>(size, Monoid::identity()); } inline void update(int i, const Monoid &x){ int j = i+(size+1)/2-1; vec[j] = x; --j; while(j>=0){ vec[j/2] = Monoid::op(vec[(j/2)*2+1], vec[(j/2)*2+2]); (j /= 2) -= 1; } } inline Monoid at(int i){ return vec[(size+1)/2 + i - 1]; } inline Monoid get(int x, int y){ // [x,y) return aux(x,y,0,0,(size+1)/2); } }; template <typename T> struct MinMonoid{ T value; using M = MinMonoid; static T INF; constexpr inline static M identity(){return M({INF});} constexpr inline static M op(const M &a, const M &b){return M({min(a.value, b.value)});} MinMonoid(T value): value(value){} }; template <typename T> struct WithIndex{ T value; int index; WithIndex(): value(T()), index(-1){} WithIndex(T value, int index): value(value), index(index){} friend bool operator<(const WithIndex &a, const WithIndex &b){ return a.value < b.value; } }; using Monoid = MinMonoid<WithIndex<int>>; template<> WithIndex<int> Monoid::INF = WithIndex(INT_MAX, -1); int main(){ int N,Q; cin >> N >> Q; SegmentTree<Monoid> seg(N); REP(i,N){ int a; cin >> a; seg.update(i, Monoid(WithIndex<int>(a, i))); } REP(i,Q){ int c; cin >> c; int l,r; cin >> l >> r; --l, --r; if(c == 1){ auto a = seg.at(l).value; auto b = seg.at(r).value; seg.update(l, Monoid(WithIndex<int>(b.value, l))); seg.update(r, Monoid(WithIndex<int>(a.value, r))); }else{ auto ans = seg.get(l,r+1); cout << ans.value.index+1 << endl; } } }