QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#471238#9104. Zayin and Forestreal_sigma_team#AC ✓380ms42348kbC++171.5kb2024-07-10 19:51:372024-07-10 19:51:37

Judging History

你现在查看的是最新测评结果

  • [2024-07-10 19:51:37]
  • 评测
  • 测评结果:AC
  • 用时:380ms
  • 内存:42348kb
  • [2024-07-10 19:51:37]
  • 提交

answer

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

struct fenwick {
    int n;
    vector<long long> fenw;

    fenwick() = default;
    fenwick(int n) : n(n), fenw(n, 0) {}

    void upd(int k, long long x) {
        for (; k < n; k |= k + 1) fenw[k] += x;
    }

    long long get(int k) {
        long long res = 0;
        for (; k >= 0; k &= k + 1, --k) res += fenw[k];
        return res;
    }

    long long get(int l, int r) {
        if (l > r) return 0;
        return get(r) - get(l - 1);
    }
};

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    long long n;
    int m;
    cin >> n >> m;
    vector<long long> vals;
    vector<tuple<int, long long, long long>> qq(m);
    for (auto& [x, y, z] : qq) {
        cin >> x >> y >> z;
        if (x == 1) {
            long long a = y;
            while (a <= n) {
                vals.push_back(a);
                a += a & -a;
            }
        }
    }
    sort(vals.begin(), vals.end());
    vals.resize(unique(vals.begin(), vals.end()) - vals.begin());
    fenwick fenw(vals.size());
    for (auto [x, y, z] : qq) {
        if (x == 1)  {
            while (y <= n) {
                fenw.upd(lower_bound(vals.begin(), vals.end(), y) - vals.begin(), z);
                y += y & -y;
            }
        } else {
            int ql = lower_bound(vals.begin(), vals.end(), y) - vals.begin();
            int qr = upper_bound(vals.begin(), vals.end(), z) - vals.begin() - 1;
            cout << fenw.get(ql, qr) << '\n';
        }
    }
}

詳細信息

Test #1:

score: 100
Accepted
time: 26ms
memory: 6188kb

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: 317ms
memory: 42188kb

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: 380ms
memory: 42348kb

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