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
#749036#7787. Maximum RatingpodysWA 6ms15644kbC++142.7kb2024-11-14 22:26:202024-11-14 22:26:20

Judging History

你现在查看的是最新测评结果

  • [2024-11-14 22:26:20]
  • 评测
  • 测评结果:WA
  • 用时:6ms
  • 内存:15644kb
  • [2024-11-14 22:26:20]
  • 提交

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;
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 15456kb

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: 6ms
memory: 15588kb

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: 0ms
memory: 15640kb

input:

1 1
1000000000
1 1000000000

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 15448kb

input:

1 1
-1000000000
1 -1000000000

output:

1

result:

ok 1 number(s): "1"

Test #5:

score: 0
Accepted
time: 0ms
memory: 15644kb

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: 15620kb

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: 15444kb

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'