Submission #1081553

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1081553	2024-08-30 07:17:51	_callmelucian	Progression (NOI20_progression)	C++14	100 / 100	961 ms	104608 KiB

Progression

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef tuple<int,int,int> tt;
#define all(a) a.begin(), a.end()
#define filter(a) a.erase(unique(all(a)), a.end())
struct node {
    ll lazyAsgn, lazyAdd, sum;
    ll best, preLen, preVal, sufLen, sufVal, same, len;
    node() : lazyAsgn(0), lazyAdd(0), sum(0), best(0), preLen(0), preVal(0), sufLen(0), sufVal(0), same(0), len(0) {}
    void refine (node ln, node rn) {
        best = max({ln.best, rn.best, (ln.sufLen + rn.preLen) * (ln.sufVal == rn.preVal)});
        preLen = max(ln.preLen, (ln.len + rn.preLen) * (ln.same == rn.preVal));
        preVal = ln.preVal;
        sufLen = max(rn.sufLen, (ln.sufLen + rn.len) * (ln.sufVal == rn.same));
        sufVal = rn.sufVal;
        same = (ln.same == rn.same ? ln.same : LLONG_MAX);
        sum = ln.sum + rn.sum, len = ln.len + rn.len;
    }
    void applyAsgn (ll val, int l, int r) {
        lazyAsgn = val, lazyAdd = 0, sum = val * ll(r - l + 1);
        best = preLen = sufLen = r - l + 1;
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 15 / 15
• Subtask 3: 35 / 35
• Subtask 4: 11 / 11
• Subtask 5: 13 / 13
• Subtask 6: 17 / 17