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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 |
---|---|---|---|---|---|---|---|---|---|
#625774 | #9104. Zayin and Forest | Tecy | AC ✓ | 678ms | 67908kb | C++20 | 2.3kb | 2024-10-09 20:59:05 | 2024-10-09 20:59:05 |
Judging History
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;
}
詳細信息
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