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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#762930#7787. Maximum RatingleiWA 2ms7944kbC++202.6kb2024-11-19 17:20:452024-11-19 17:20:46

Judging History

你现在查看的是最新测评结果

  • [2024-11-19 17:20:46]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:7944kb
  • [2024-11-19 17:20:45]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define PII pair<long long ,long long>
#define int long long
const int N = 2e6 + 10,MOD=1004535809,B=13331,inf=1e9+10,mod=998244353;
int dx[]={1,-1,0,0};
int dy[]={0,0,-1,1},idx;
inline int read()
{
    int x=0,f=1;
    char ch=getchar();
    while(ch<'0'||ch>'9')
    {
        if(ch=='-') f=-1;
        ch=getchar();
    }
    while(ch>='0' && ch<='9')  x=x*10+ch-'0',ch=getchar();
    return x*f;
}
inline void write( int x ) {
    if ( x < 0 ) putchar ('-'), x = -x;
    if ( x > 9 ) write ( x / 10 ); putchar ( x % 10 | 48 );
}
int n,m,root;
int sum[N<<2],sz[N<<2];
struct node{
    int l,r;
}tr[N<<2];
void update(int &u,int l,int r,int x,int v,int k)
{
    if(!u) u=++idx;
    if(l==r) sum[u]+=v,sz[u]+=k;
    else
    {
        int mid=l+r>>1;
        if(mid>=x) update(tr[u].l,l,mid,x,v,k);
        else update(tr[u].r,mid+1,r,x,v,k);
        sum[u]=sum[tr[u].l]+sum[tr[u].r]; 
        sz[u]=sz[tr[u].l]+sz[tr[u].r];
    }
}

int find(int u,int l,int r,int k)
{
    if(sum[u]<=k) return -1;
    if(l==r) return k/l+1;
    else
    {
        int mid=l+r>>1;
        if(sum[tr[u].l]>k) return find(tr[u].l,l,mid,k);
        else return sz[tr[u].l]+find(tr[u].r,mid+1,r,k-sum[tr[u].l]);
       
    }
}
void lei()
{
    n=read();
    int q=read(),cnt=0;
    vector<int>a(n+1);
    int res=0;
    for(int i=1;i<=n;i++) 
    {
        a[i]=read();
        if(a[i]>0) update(root,1,inf,a[i],a[i],1),cnt++;
        else res-=a[i]; 
    }
    
    while(q--)
    {
        int x=read(),v=read();
        int k=a[x];
        if(k>0) 
        {
            update(root,1,inf,k,-k,-1);
            if(v>=0)
                update(root,1,inf,v,v,1);
            else 
            {
                res-=v;
                cnt--;
            }
        }
        else                        //k为负数
        {
            res+=k;
            if(v>=0)
            { 
                update(root,1,inf,v,v,1);
                cnt++;
            }
            else res-=v;
        }
        //cout<<cnt<<endl;
        a[x]=v;
        int p=find(root,1,inf,res);
       // cout<<res<<" "<<sum[1]<<endl;
        // if(!p) cout<<cnt+1<<endl;
       // cout<<p<<endl;
      // cout<<cnt<<endl;
        cout<<cnt-(p==-1?0:cnt-p+1)+1<<endl;
    }
}
signed main()
{
//    std::ios::sync_with_stdio(false);
//    std::cin.tie(0);
//    std::cout.tie(0);

    // freopen("in.txt", "rt", stdin);
    // freopen("out.txt", "wt", stdout);
    int Tao=1;
    //Tao=read();
    while(Tao--)     lei();
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 7644kb

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: 7696kb

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: 7580kb

input:

1 1
1000000000
1 1000000000

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3604kb

input:

1 1
-1000000000
1 -1000000000

output:

1

result:

ok 1 number(s): "1"

Test #5:

score: 0
Accepted
time: 2ms
memory: 7648kb

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: -100
Wrong Answer
time: 2ms
memory: 7944kb

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:

wrong answer 394th numbers differ - expected: '500', found: '501'