제출 #542739

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
542739		Olympia	Nekameleoni (COCI15_nekameleoni)	C++17	0 / 140	3075 ms	130696 KiB

nekameleoni

#include <vector>
#include <algorithm>
#include <iostream>
#include <set>
#include <cmath>
#include <map>
#include <random>
#include <cassert>
#include <ctime>
#include <cstdlib>
#include <limits.h>

using namespace std;
class Node {
public:
    vector<int> left, right;
    bool okay = true;
    Node () {
        left.assign(51, INT_MAX), right.assign(51, -1);
    }
};
vector<int64_t> powr;
Node generate (int t, int64_t x) {
    Node ans;
    ans.left[x] = t;
    ans.left[0] = 0;
    ans.right[x] = t;
    ans.right[0] = 0;
    return ans;
}
int finder (vector<int> v1, vector<int> v2, int K) {
    set<int> s;
    for (int i = 1; i <= K; i++) {
        if (v1[i] == -1 || v1[i] == INT_MAX) return -1;
        s.insert(v1[i]);
    }
    for (int i = 1; i <= K; i++) {
        if (v2[i] == -1 || v2[i] == INT_MAX) return -1;
        s.insert(v2[i]);
    }
    int ans = INT_MAX;
    for (int i: s) {
        for (int j: s) {
            bool fine = true;
            for (int k = 1; k <= K; k++) {
                if ((v1[k] < i || v1[k] > j) && (v2[k] < i || v2[k] > j)) {
                    fine = false; break;
                }
            }
            if (fine) {
                ans = min(ans, abs(j-i));
            }
        }
    }
    return ans + 1;
}
Node merge (Node x, Node y) {
    if (!x.okay) return y;
    if (!y.okay) return x;
    Node ans;
    ans.left = x.left;
    ans.right = y.right;
    for (int i = 0; i <= 50; i++) {
        ans.left[i] = min(x.left[i], y.left[i]);
    }
    for (int i = 0; i <= 50; i++) {
        ans.right[i] = max(x.right[i], y.right[i]);
    }

    return ans;
}
template<class T>
class SegmentTree {
public:

    SegmentTree (int N) {
        N = (1 << ((int)floor(log2(N - 1)) + 1));
        this->N = N;
        val.assign(2 * N, ID);
        ID.okay = false;
    }

    void update (int x, T y) {
        x += N - 1;
        val[x] = y;
        while (x != 0) {
            x = (x - 1)/2;
            val[x] = merge(val[2 * x + 1], val[2 * x + 2]);
        }
    }

    void build (int dum, vector<int>& arr, int tl, int tr) {
        if (tl == tr) {
            if (tl < arr.size()) val[dum] = generate(tl, arr[tl]);
            else val[dum] = generate(tl, 0);
            return;
        }
        build(2 * dum + 1, arr, tl, (tl + tr)/2);
        build(2 * dum + 2, arr, (tl + tr)/2 + 1, tr);
        val[dum] = merge(val[2 * dum + 1], val[2 * dum + 2]);
    }

    void build (vector<int> arr) {
        build(0,  arr, 0, N - 1);
    }

    T query (int ind, const int l, const int r, int tl, int tr) {
        if (tl >= l && tr <= r) {
            return val[ind];
        }
        if (tr < l || tl > r) {
            return ID;
        }
        return merge(query(2 * ind + 1, l, r, tl, (tl + tr)/2), query(2 * ind + 2, l, r, (tl + tr)/2 + 1, tr));
    }

    T query (int l, int r) {
        return query(0, l, r, 0, N - 1);
    }
private:
    vector<T> val;
    T ID;
    int N;
};
int main() {
    //freopen("balancing.in", "r", stdin);
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int N, K, M;
    cin >> N >> K >> M;
    SegmentTree<Node> st(N);
    vector<int> arr(N);
    for (int i = 0; i < N; i++) {
        cin >> arr[i];
    }
    powr = {1};
    for (int i = 0; i < 50; i++) {
        powr.push_back(powr.back() * 2);
    }
    st.build(arr);
    while (M--) {
        int t; cin >> t;
        if (t == 2) {
            Node myNode = st.query(0, N - 1);
            cout << finder(myNode.left, myNode.right, K) << '\n';
        } else {
            int p, v; cin >> p >> v; p--;
            st.update(p, generate(p, v));
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

nekameleoni.cpp: In instantiation of 'void SegmentTree<T>::build(int, std::vector<int>&, int, int) [with T = Node]':
nekameleoni.cpp:104:14:   required from 'void SegmentTree<T>::build(std::vector<int>) [with T = Node]'
nekameleoni.cpp:140:17:   required from here
nekameleoni.cpp:94:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |             if (tl < arr.size()) val[dum] = generate(tl, arr[tl]);
      |                 ~~~^~~~~~~~~~~~

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