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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
#846650#9971. 新本格魔法少女りすかbinbin0 0ms0kbC++143.3kb2025-01-07 11:29:442025-01-07 11:29:45

Judging History

This is the latest submission verdict.

  • [2025-01-07 11:29:45]
  • Judged
  • Verdict: 0
  • Time: 0ms
  • Memory: 0kb
  • [2025-01-07 11:29:44]
  • Submitted

answer

#include<bits/stdc++.h>
using namespace std;

const int maxB=165,maxn=5e5+5;

#define ll long long
#define pii pair<int,int>
#define fi first
#define se second

struct fknode
{
    int l,r;
}fk[maxB];
class treearray
{
    private:
        #define N 500000
        inline int lowbit(int x){return x&(-x);}
    public:
        int ts[maxn];
        inline void updata(int x,int y){for(;x<=N&&x;x+=lowbit(x)) ts[x]+=y;}
        inline int getsum(int x){int sum=0;for(;x;x-=lowbit(x)) sum+=ts[x];return sum;}
        inline void clr(int x){for(;x<=N&&x;x+=lowbit(x)) ts[x]=0;}
}Ts;

int n,m,B;
int M[maxn],a[maxn];

ll ans[maxn],sum[maxn];

vector<pii>qry[maxn];

bool vis[maxn];

inline ll add(int l,int r)
{
    ll sum=0;
    for(int i=l;i<=r;i++) sum+=Ts.getsum(a[i]-1);
    return sum;
}
inline void upd(int l,int r){for(int i=l;i<=r;i++) Ts.updata(a[i],1),vis[a[i]]=1;}
inline void clr(int l,int r)
{
    for(int i=l;i<=r;i++) if(vis[a[i]]) Ts.clr(a[i]),vis[a[i]]=0;
}

int main()
{
    scanf("%d%d",&n,&m);
    B=sqrt(n/log2(n));
    for(int i=1;i<=(n-1)/B+1;i++)
    {
        fk[i].l=fk[i-1].r+1;
        fk[i].r=fk[i].l+B-1;
    }
    for(int i=1;i<=n;i++) scanf("%d",&a[i]);
    for(int i=1;i<=m;i++)
    {
        scanf("%d",&M[i]);
        for(int j=1,l,r;j<=M[i];j++)
        {
            scanf("%d%d",&l,&r),qry[i].push_back({l,r});
            int numl=(l-1)/B+1,numr=(r-1)/B+1;
            if(numl==numr)
            {
                if(r<fk[numl].r||l>fk[numl].l) ans[i]+=add(l,r);
                upd(l,r);
            }
            else
            {
                if(l>fk[numl].l) ans[i]+=add(l,fk[numl].r);
                if(r<fk[numr].r) ans[i]+=add(fk[numr].l,r);
                if(l>fk[numl].l) upd(l,fk[numl].r);
                if(r<fk[numr].r) upd(fk[numr].l,r);
            }
        }
        for(auto v:qry[i])
        {
            int l=v.fi,r=v.se;
            int numl=(l-1)/B+1,numr=(r-1)/B+1;
            if(numl==numr) clr(l,r);
            else
            {
                clr(l,fk[numl].r);
                clr(fk[numr].l,r);
            }
        }
    }
    for(int i=1;i<=(n-1)/B+1;i++)
    {
        upd(fk[i].l,fk[i].r);int det=fk[i].r-fk[i].l+1;
        for(int j=1;j<fk[i].l;j++) sum[j]=sum[j-1]+(det-Ts.getsum(a[j]));
        for(int j=fk[i].l;j<=fk[i].r;j++) sum[j]=sum[j-1];
        for(int j=fk[i].r+1;j<=n;j++) sum[j]=sum[j-1]+Ts.getsum(a[j]-1);
        clr(fk[i].l,fk[i].r);
        for(int j=1;j<=m;j++)
        {
            int flg=0;ll res=0;
            for(pii v:qry[j])
            {
                if(v.fi<=fk[i].l&&fk[i].r<=v.se) {flg=1;continue;}
                if(v.se<=fk[i].l) res+=sum[v.se]-sum[v.fi-1];
                else
                {
                    int l=v.fi,r=v.se,numl=(l-1)/B+1,numr=(r-1)/B+1;
                    if(numl==numr) {if(r<fk[numl].r||l>fk[numl].l) res+=sum[r]-sum[l-1];}
                    else
                    {
                        if(l>fk[numl].l) res+=sum[fk[numl].r]-sum[l-1];
                        if(r<fk[numr].r) res+=sum[r]-sum[fk[numr].l-1];
                    }
                }
            }
            ans[j]+=res*flg;
        }
    }
    for(int i=1;i<=m;i++) printf("%lld\n",ans[i]);
}

详细

Subtask #1:

score: 0
Runtime Error

Test #1:

score: 0
Runtime Error

input:

500000 50174
453952 363686 491616 32825 57465 422945 471561 73291 421205 416554 23295 133266 242225 330448 25039 340064 28713 465664 162059 323880 28978 273728 101338 161413 294941 214275 63951 267981 294251 202822 253124 272510 3268 37918 139343 385983 111577 311901 487665 482827 347449 416029 3065...

output:


result:


Subtask #2:

score: 0
Runtime Error

Test #6:

score: 0
Runtime Error

input:

500000 5
157360 289139 98034 293691 150262 268366 36782 147093 365410 444658 343224 375392 278298 357620 389673 167019 7747 119244 102126 83512 3649 459230 197365 245259 38071 249539 34617 213697 292553 389625 395778 280152 280038 239519 301475 232272 145919 370004 422791 271143 488283 185166 351026...

output:


result:


Subtask #3:

score: 0
Skipped

Dependency #1:

0%