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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 |
---|---|---|---|---|---|---|---|---|---|
#505782 | #9104. Zayin and Forest | WendyChen | AC ✓ | 384ms | 49304kb | C++20 | 1.6kb | 2024-08-05 11:24:17 | 2024-08-05 11:24:17 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'
#define base 191
#define mod 1145141
const int N = 1e7 + 10;
int n, m;
int tree[N];
int op[N], opa[N], opb[N];
vector<int> nums;
int lowbit(int x) {
return x & -x;
}
void add(int pos, int val) { // tree为树状数组
while (pos <= n) { // 不能越界
tree[pos] += val;
pos += lowbit(pos);
}
}
int query(int x) { // a[1]..a[x]的和
int ans = 0;
while (x >= 1) {
ans = ans + tree[x];
x = x - lowbit(x);
}
return ans;
}
int query(int l, int r) { // 前缀相减
return query(r) - query(l - 1);//求的是(l,r)里面的所有数的和
}
void solve() {
cin >> n >> m;
for (int i = 1; i <= m; ++i) {
cin >> op[i] >> opa[i] >> opb[i];
if (op[i] == 1) {
for(int j = opa[i]; j <= n; j += lowbit(j)) {
nums.push_back(j);
}
}
else {
nums.push_back(opa[i]);
nums.push_back(opb[i]);
}
}
sort(nums.begin(), nums.end());
nums.erase(unique(nums.begin(), nums.end()), nums.end());
int nn = n;
n = nums.size();
for (int i = 1; i <= m; ++i) {
if (op[i] == 1) {
for (int j = opa[i]; j <= nn; j += lowbit(j)) {
int y = lower_bound(nums.begin(), nums.end(), j) - nums.begin() + 1;
add(y, opb[i]);
}
}
else {
int l = lower_bound(nums.begin(), nums.end(), opa[i]) - nums.begin() + 1;
int r = lower_bound(nums.begin(), nums.end(), opb[i]) - nums.begin() + 1;
cout << query(l, r) << endl;
}
}
}
signed main() {
ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
int T = 1;
//cin >> T;
while (T--) {
solve();
}
}
详细
Test #1:
score: 100
Accepted
time: 32ms
memory: 12024kb
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: 344ms
memory: 49208kb
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: 384ms
memory: 49304kb
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