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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#625774#9104. Zayin and ForestTecyAC ✓678ms67908kbC++202.3kb2024-10-09 20:59:052024-10-09 20:59:05

Judging History

你现在查看的是最新测评结果

  • [2024-10-09 20:59:05]
  • 评测
  • 测评结果:AC
  • 用时:678ms
  • 内存:67908kb
  • [2024-10-09 20:59:05]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
using i64 = int64_t;

template<class T>
struct Fenwick {
	int n;
	vector<T> sum;
	Fenwick(int _n = 0) {
		n = _n;
		sum.resize(n);
	}

	int lowbit(int x) {
		return x & (-x);
	}

	void update(int p, T k) {
		for (int i = p; i < n; i += lowbit(i)) {
			sum[i] += k;
		}
	}

	T prefixsum(int p) {
		T ans = 0;
		for (int i = p; i > 0; i -= lowbit(i)) {
			ans += sum[i];
		}
		return ans;
	}

	T rangesum(int l, int r) {
		return prefixsum(r) - prefixsum(l - 1);
	}
};

struct Info {
    int op;
    i64 x, y;
};

constexpr i64 N = 61;

i64 f(i64 x) {
    bool flag = false;
    for (i64 i = 0; i <= N; i++) {
        if (flag) {
            if (!((x >> i) & 1)) {
                x ^= 1LL << i;
                return x;
            }
        }

        if ((x >> i) & 1) {
            x ^= 1LL << i;
            flag = true;
        }
    }
    return 0;
}

void solve() {
    i64 n, m;
    cin >> n >> m;
    vector<i64> bin = { 0 };
    vector<Info> info(m);
    for (auto& [op, x, y] : info) {
        cin >> op >> x >> y;
        if (op == 1) {
            i64 cur = x;
            while (cur <= n) {
                bin.push_back(cur);
                cur = f(cur);
            }
        } else {
            bin.push_back(x - 1);
            bin.push_back(y);
        }
    }

    sort(bin.begin(), bin.end());
    int k = bin.size();
    Fenwick<i64> fw(k);

    for (auto& [op, x, y] : info) {
        if (op == 1) {
            i64 cur = x;
            while (cur <= n) {
                int pos = lower_bound(bin.begin(), bin.end(), cur) - bin.begin();
                fw.update(pos, y);
                cur = f(cur);
            }
        } else {
            int l = lower_bound(bin.begin(), bin.end(), x - 1) - bin.begin();
            int r = lower_bound(bin.begin(), bin.end(), y) - bin.begin();
            cout << fw.rangesum(l + 1, r) << "\n";
        }
    }
}

/*
8 6
1 1 1
1 3 2
1 5 3
1 7 4
2 1 5
2 4 8

1000000000000000000 2
1 1 1
2 1 1000000000000000000
*/

int main() {
    ios::sync_with_stdio(false);
    cout.tie(0);
    cin.tie(0);

    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
    }

    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 42ms
memory: 7048kb

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: 678ms
memory: 67908kb

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: 611ms
memory: 49820kb

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