Submission #894007

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
894007	2023-12-27 18:57:44	azosi	Min-max tree (BOI18_minmaxtree)	C++17	100 / 100	262 ms	31740 KiB

minmaxtree

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#include <bits/stdc++.h>
#define x first
#define y second
using namespace std;
const int MAX_N = 70070;
const int INF = 1e9 + 100;
int n, q;
struct SegmentTree {
    typedef int (*F)(int, int);
    F merge;
    int identity;
    int tree[MAX_N * 4]{}, lazy[MAX_N * 4]{};
    SegmentTree(F func, int identity) : merge(func), identity(identity) {
        for (int i = 0; i < MAX_N * 4; ++i) tree[i] = lazy[i] = identity;
    }
    void push(int node, int l, int r) {
        if (lazy[node] != identity) {
            tree[node] = merge(tree[node], lazy[node]);
            if (l != r) {
                lazy[node * 2] = merge(lazy[node * 2], lazy[node]);
                lazy[node * 2 + 1] = merge(lazy[node * 2 + 1], lazy[node]);
            }
        }
        lazy[node] = identity;
    }
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 22 / 22
• Subtask 3: 29 / 29
• Subtask 4: 42 / 42