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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#484157#9104. Zayin and ForestPetroTarnavskyi#AC ✓342ms43276kbC++201.6kb2024-07-19 16:25:592024-07-19 16:26:00

Judging History

你现在查看的是最新测评结果

  • [2024-07-19 16:26:00]
  • 评测
  • 测评结果:AC
  • 用时:342ms
  • 内存:43276kb
  • [2024-07-19 16:25:59]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#define FOR(i, a, b) for(int i = (a); i < (b); i++)
#define RFOR(i, a, b) for(int i = (a) - 1; i >= (b); i--)
#define SZ(a) int(a.size())
#define ALL(a) a.begin(), a.end()
#define PB push_back
#define MP make_pair
#define F first
#define S second
 
typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PII;
typedef double db;

LL f(LL x)
{
	LL y = __builtin_ctzll(x);
	return x + (1LL << y);
}

struct Fenwick
{
	int n;
	vector<LL> t;
	void init(int _n)
	{
		n = _n;
		t.clear();
		t.assign(n, 0);
	}
	void upd(int i, int x)
	{
		for (; i < n; i |= i + 1)
			t[i] += x;
	}
	LL query(int i)
	{
		LL ans = 0;
		for (; i >= 0; i = (i & (i + 1)) - 1)
			ans += t[i];
		return ans;
	}
};

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	LL n, m;
	cin >> n >> m;
	vector<tuple<int, LL, LL>> queries(m);
	for (auto& [op, a, b] : queries)
		cin >> op >> a >> b;
	vector<LL> vec;
	vec.reserve(60 * m);
	for (auto [op, a, b] : queries)
	{
		if (op == 1)
		{
			for (LL x = a; x <= n; x = f(x))
			{
				vec.PB(x);
			}
		}
	}
	sort(ALL(vec));
	vec.erase(unique(ALL(vec)), vec.end());
	Fenwick fw;
	fw.init(SZ(vec));
	for (auto [op, a, b] : queries)
	{
		if (op == 1)
		{
			for (LL x = a; x <= n; x = f(x))
			{
				int pos = lower_bound(ALL(vec), x) - vec.begin();
				fw.upd(pos, b);
			}
		}
		else
		{
			int le = lower_bound(ALL(vec), a) - vec.begin();
			int ri = upper_bound(ALL(vec), b) - vec.begin();
			cout << fw.query(ri - 1) - fw.query(le - 1) << "\n";
		}
	}
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 27ms
memory: 7164kb

input:

1000000000 20000
2 384578735 526547442
1 64211261 592970906
1 512065247 448267721
1 44993150 127180320
1 880319036 927623947
1 170536687 572121854
1 896600029 804033011
1 666246328 754201635
1 654066651 179982083
2 240989825 984888006
2 372004567 858916479
2 76127818 98606736
1 181794163 902842353
1...

output:

0
43148875202
17613404710
0
32808578044
28190043566
15641637055
78276219892
14955165236
20262224725
105057452192
17002492367
57916137452
27165464255
72766353838
39458327919
38294102627
264448717384
0
70928519548
279674530483
88885017175
111664599432
69703816663
211506104092
104120007714
34403738515
...

result:

ok 6649 lines

Test #2:

score: 0
Accepted
time: 302ms
memory: 43060kb

input:

1000000000000000000 100000
1 384578735 526547442
1 64211261 592970906
1 512065247 448267721
1 44993150 127180320
1 880319036 927623947
1 170536687 572121854
1 896600029 804033011
2 666246328 931651408754201635
1 654066651 179982083
1 984888006 240989825
1 372004567 858916479
1 76127818 98606736
1 18...

output:

144205553442
497561506762
903930740555
878459229726
689906696633
859703313829
735231510045
1177875391120
1461659121798
1612314483744
2027462020547
1991476058156
2381861014705
2033973986301
2117738140401
2946661001323
2187638958334
2593068002437
1854182975909
2262561461341
3038788266419
3070435321746...

result:

ok 12561 lines

Test #3:

score: 0
Accepted
time: 342ms
memory: 43276kb

input:

1000000000000000000 100000
1 395661363384578735 526547442
1 843068846064211261 592970906
1 550209039512065247 448267721
1 79278526044993150 127180320
1 193676380880319036 927623947
1 81194098170536687 572121854
1 223947079896600029 804033011
2 921340893666246328 931651408754201635
1 3605022006540666...

output:

0
152171177084
261154456848
98759395571
132967101279
214003153997
109857765028
569583036989
221377921411
943235254745
1036051470108
1290577544766
795223506189
1251272020902
662604469794
907615793356
1786684858550
488655543368
1495388560030
1818589934911
151873013358
717984689394
2039336496945
378996...

result:

ok 12561 lines