QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#749020 | #7787. Maximum Rating | podys | WA | 4ms | 15632kb | C++14 | 2.7kb | 2024-11-14 22:23:57 | 2024-11-14 22:23:59 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
int a[200005];
const int N=2e5+5;
class tre{
public:
vector<int> sum,ls,rs,ct;
// int sum[N * 2], ls[N * 2], rs[N * 2];
tre(){
sum=vector<int>(N*2);
ls=vector<int>(N*2);
rs=vector<int>(N*2);
ct=vector<int>(N*2);
}
// root 表示整棵线段树的根结点;cnt 表示当前结点个数
int cnt=0, root=0;
// 用法:update(root, 1, n, x, f); 其中 x 为待修改节点的编号
void update(int& p, int s, int t, int x, int f,int g) { // 引用传参
if (!p) p = ++cnt; // 当结点为空时,创建一个新的结点
if (s == t) {
sum[p] += f;
ct[p] += g;
return;
}
int m = s + ((t - s) >> 1);
if (x <= m)
update(ls[p], s, m, x, f,g);
else
update(rs[p], m + 1, t, x, f,g);
sum[p] = sum[ls[p]] + sum[rs[p]]; // pushup
ct[p] = ct[ls[p]] + ct[rs[p]]; // pushup
}
// 用法:query(root, 1, n, l, r);
int query(int p, int s, int t, int l, int r) {
if (!p) return 0; // 如果结点为空,返回 0
if (s >= l && t <= r) return sum[p];
int m = s + ((t - s) >> 1), ans = 0;
if (l <= m) ans += query(ls[p], s, m, l, r);
if (r > m) ans += query(rs[p], m + 1, t, l, r);
return ans;
}
int check(int p,int s,int t,int &now){
if (!p) return 0; // 如果结点为空,返回 0
if(s==t && ct[p]>1 && now<sum[p]){
int ret=now/(sum[p]/ct[p]);
now-=ret*sum[p];
return ret;
}
if(sum[p]<=now){
now-=sum[p];
return ct[p];
}
int m = s + ((t - s) >> 1), ans = 0;
ans+=check(ls[p],s,m,now);
ans+=check(rs[p],m+1,t,now);
return ans;
}
};
void solve(){
tre t1;
int n,q;
cin>>n>>q;
int sum=0;
for(int i=1;i<=n;i++){
cin>>a[i];
if(a[i]<=0){
sum-=a[i];
}else{
t1.update(t1.root, 1, n, a[i], a[i],1);
}
}
while(q--){
int x,v;
cin>>x>>v;
if(a[x]<=0){
sum+=a[x];
}else{
t1.update(t1.root, 1, n, a[x], -a[x],-1);
}
a[x]=v;
if(v<=0){
sum-=v;
}else{
t1.update(t1.root, 1, n, v, v,1);
}
int tmp=sum;
cout<<t1.check(t1.root,0,n,tmp)+1<<endl;
}
}
signed main(){
ios::sync_with_stdio(0);cin.tie(0);cout.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: 2ms
memory: 15596kb
input:
3 5 1 2 3 3 4 2 -2 1 -3 3 1 2 1
output:
1 2 2 2 3
result:
ok 5 number(s): "1 2 2 2 3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 15596kb
input:
3 5 1 2 3 3 4 2 -2 1 3 3 1 2 1
output:
1 2 1 2 1
result:
ok 5 number(s): "1 2 1 2 1"
Test #3:
score: 0
Accepted
time: 4ms
memory: 15580kb
input:
1 1 1000000000 1 1000000000
output:
1
result:
ok 1 number(s): "1"
Test #4:
score: 0
Accepted
time: 0ms
memory: 15632kb
input:
1 1 -1000000000 1 -1000000000
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 15548kb
input:
1000 1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
output:
946 65 252 410 915 592 983 487 343 899 809 432 586 587 139 464 804 84 476 699 504 149 579 352 375 856 545 166 140 657 568 509 275 710 873 430 537 879 301 1 298 970 923 510 984 642 55 879 941 344 464 788 917 994 571 610 491 442 926 101 986 840 624 613 425 345 816 423 275 221 317 113 386 116 469 260 4...
result:
ok 1000 numbers
Test #6:
score: 0
Accepted
time: 0ms
memory: 15452kb
input:
1000 1000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000000 1 -1000000...
output:
500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 ...
result:
ok 1000 numbers
Test #7:
score: -100
Wrong Answer
time: 0ms
memory: 15472kb
input:
1000 1000 -485078954 -474724347 -284958745 -99994191 -853392841 -796786314 -87134718 -861459498 -982809180 -184620712 -618476092 -244916830 -349486182 -751407510 -874417202 -419521829 -888338757 -735353446 -426330733 -715383449 -48093437 -359419189 -474876639 -887614191 -157085227 -51186523 -4851821...
output:
2 3 4 5 6 7 8 9 10 11 12 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 51 52 53 54 55 56 57 58 59 60 60 61 62 63 64 65 65 66 67 68 69 70 71 72 73 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 88 89 90 91 92 92 93 94 95 96...
result:
wrong answer 747th numbers differ - expected: '505', found: '504'