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 |
---|---|---|---|---|---|---|---|---|---|
#547258 | #9104. Zayin and Forest | wzxtsl# | AC ✓ | 726ms | 160888kb | C++17 | 898b | 2024-09-04 19:50:10 | 2024-09-04 19:50:10 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=1e6+7;
#define int long long
#define lowbit(x) (x&(-x))
int a[500005];
map<int,int> c;
int n,m;
//区间修改
int update(int pos,int k){//pos表示修改点的位置,K表示修改的值也即+K操作
int cnt=1;
for(int i=pos;i<=n;i+=lowbit(i)){
c[i]+=cnt*k;
cnt++;
}
return 0;
}
//单点查询
int ask_qujian(int pos){//返回区间pos到1的总和,由于是使用差分数组维护因此使用前缀和
int ans=0;
for(int i=pos;i;i-=lowbit(i)){
ans+=c[i];
}
return ans;
}
signed main(){
cin>>n>>m;
while(m--){
int a;
int x,y;
cin>>a;
if(a==1){
cin>>x>>y;
update(x,y);
}else{
cin>>x>>y;
cout<<ask_qujian(y)-ask_qujian(x-1)<<endl;
}
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 53ms
memory: 17224kb
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: 448ms
memory: 66808kb
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: 726ms
memory: 160888kb
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