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
#448120#8525. MercenariesmarherWA 866ms540076kbC++143.8kb2024-06-19 11:49:002024-06-19 11:49:02

Judging History

你现在查看的是最新测评结果

  • [2024-06-19 11:49:02]
  • 评测
  • 测评结果:WA
  • 用时:866ms
  • 内存:540076kb
  • [2024-06-19 11:49:00]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=8e5+50;

struct poi
{
    int x,y;

    friend poi operator+(poi a,poi b)
    {
        return (poi){a.x+b.x,a.y+b.y};
    }

    friend poi operator-(poi a,poi b)
    {
        return (poi){a.x-b.x,a.y-b.y};
    }

    int operator^(poi b)
    {
        return x*b.y-y*b.x;
    }

    friend bool operator<(poi a,poi b)
    {
        int w=a^b;
        return w==0?a.y>b.y:w<0;
    }
    
    int operator*(poi b)
    {
        return x*b.x+y*b.y;
    }
}a[N];

struct query
{
    poi x;int c,id,p;
    
    friend bool operator<(query a,query b)
    {
        return a.x<b.x;
    }
}Q[N];

int n,q,ans[N];
vector<poi>p[N];
poi st[N];

#define ls (x<<1)
#define rs (x<<1|1)
#define mid ((l+r)>>1)
#define LS ls,l,mid
#define RS rs,mid+1,r

struct convex
{
    vector<poi>p;
    int pos;

    void merge1(convex a,convex b)// mink
    {
        vector<poi>().swap(p);
        p.resize(a.p.size()+b.p.size());
        int pos=0,cc=0;
        for(auto x:a.p)
        {
            while(pos<b.p.size()&&b.p[pos]<x)p[cc++]=b.p[pos++];
            p[cc++]=x;
        }
        while(pos<b.p.size())p[cc++]=b.p[pos++];
    }
    
    void merge2(convex a,convex b)// convex hull
    {
        vector<poi>().swap(p);
        int cc=0,pos=0;
        for(auto x:a.p)
        {
            while(pos<b.p.size()&&(x.x>b.p[pos].x||(x.x==b.p[pos].x&&x.y>b.p[pos].y)))st[cc++]=b.p[pos++];
            st[cc++]=x;
        }
        while(pos<b.p.size())st[cc++]=b.p[pos++];
        if(cc==0)return;
        int top=0;
        for(int i=1;i<cc;i++)
        {
            while(top&&(st[i]-st[top])<(st[i]-st[top-1]))top--;
            st[++top]=st[i];
        }
        p.resize(top+1);
        for(int i=0;i<=top;i++)p[i]=st[i];
    }

    void diff()
    {
        for(int i=p.size()-1;i>0;i--)p[i]=p[i]-p[i-1];
    }
    
    void integral()
    {
        for(int i=1;i<p.size();i++)p[i]=p[i]+p[i-1];
    }

    int find(poi x)
    {
        if(p.empty())return 0;
        int w=x*p[pos];
        while(pos+1<p.size()&&w<=x*p[pos+1])w=x*p[++pos];
        return w;
    }
}f[N],g[N],tmp;

void build(int x,int l,int r)
{
    if(l==r)
    {
        sort(p[l].begin(),p[l].end());
        f[x].merge2((convex){p[l]},(convex){});
        f[x].diff();
        g[x].merge1((convex){{a[l]}},f[x]);
        g[x].integral();
        return;
    }
    build(LS);build(RS);
    f[x].merge1(f[ls],f[rs]);
    tmp=g[ls];tmp.diff();
    tmp.merge1(tmp,f[rs]);
    tmp.integral();
    g[x].merge2(tmp,g[rs]);
}

int c;poi t;

int solve(int x,int l,int r,int L,int R)
{
    if(L>R)return -1;
    if(L<=l&&R>=r)
    {
        if(g[x].find(t)<c)
        {
            c-=f[x].find(t);
            return -1;
        }
        if(l==r)return l;
        int w=solve(RS,L,R);
        return w==-1?solve(LS,L,R):w;
    }
    if(R>mid)
    {
        int w=solve(RS,L,R);
        if(w!=-1)return w;
    }
    return solve(LS,L,R);
}

void dfs(int x,int l,int r)
{
    f[x].integral();
    if(l==r)return;
    dfs(LS);dfs(RS);
}

main()
{
    // freopen("in.txt","r",stdin);
    // freopen("out.txt","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i].x>>a[i].y;
        if(i==n)break;
        int k;cin>>k;
        p[i].resize(k);
        while(k--)cin>>p[i][k].x>>p[i][k].y;
    }
    build(1,1,n);dfs(1,1,n);
    cin>>q;
    for(int i=1;i<=q;i++)cin>>Q[i].p>>Q[i].x.x>>Q[i].x.y>>Q[i].c,Q[i].id=i;
    sort(Q+1,Q+1+q);
    for(int i=1;i<=q;i++)
    {
        t=Q[i].x,c=Q[i].c;
        int pos=Q[i].p;
        if(a[pos]*t>=c)ans[Q[i].id]=pos;
        else ans[Q[i].id]=solve(1,1,n,1,Q[i].p-1);
    }
    for(int i=1;i<=q;i++)cout<<ans[i]<<'\n';
}

详细

Test #1:

score: 100
Accepted
time: 3ms
memory: 79280kb

input:

3
1 1
2 1 2 1 2
3 2
5 1 5 4 3 3 4 5 1 1 2
4 5
12
1 1 1 1
2 1 1 1
3 1 1 1
3 1 1 9
3 2 2 20
3 1 2 18
3 1 2 19
3 1 2 20
3 0 1 8
2 1 0 4
2 1 0 3
2 1 0 2

output:

1
2
3
3
2
2
1
-1
1
-1
2
2

result:

ok 12 numbers

Test #2:

score: 0
Accepted
time: 3ms
memory: 79256kb

input:

2
47 11
1 98 25
9 90
10
1 32 28 1811
2 17 44 4114
1 36 88 2661
2 79 33 3681
1 53 26 2778
2 59 20 2332
2 63 45 4616
2 72 11 10835
1 13 28 919
2 16 59 4445

output:

1
-1
-1
2
-1
1
2
1
1
2

result:

ok 10 numbers

Test #3:

score: 0
Accepted
time: 12ms
memory: 80756kb

input:

3
87 42
5 69 12 82 79 10 88 45 51 40 3
18 6
5 73 100 58 41 40 88 54 5 40 98
31 63
100
3 32 13 1811
1 51 21 5318
1 32 5 2994
2 77 51 19184
2 78 60 1763
1 10 1 913
1 22 51 4057
1 2 5 385
2 50 15 989
2 65 53 1488
1 49 82 7708
2 33 90 1133
1 23 33 3388
1 92 36 9516
3 39 61 10014
2 43 55 1103
2 48 38 127...

output:

3
1
1
1
2
-1
-1
-1
2
2
-1
2
-1
1
2
2
-1
3
2
2
3
1
1
1
-1
1
1
1
3
1
-1
1
-1
1
2
1
2
1
1
1
1
1
-1
1
-1
-1
1
1
-1
-1
1
1
2
1
1
-1
2
-1
1
1
1
1
3
1
2
3
2
2
1
1
-1
1
1
3
1
1
1
3
2
1
1
2
1
2
1
2
1
-1
-1
-1
1
2
1
1
-1
-1
1
3
2
2

result:

ok 100 numbers

Test #4:

score: 0
Accepted
time: 420ms
memory: 105240kb

input:

2
309248041 338995438
500000 1235 4866 1931 3652 1921 258 545 587 3001 542 3074 1694 4944 206 3217 3135 2388 4791 1890 3281 3840 4614 4491 1339 4660 1708 2225 3199 736 1306 4175 4652 906 3509 2571 1578 50 981 402 4975 2730 2198 4546 3120 40 815 2492 518 2102 2651 1018 3996 1764 808 3934 4312 1981 40...

output:

2
1
-1
2
2
2
1
1
2
-1
2
2
1
1
2
1
2
2
1
2
2
1
-1
-1
1
-1
2
-1
1
2
1
1
1
1
-1
1
-1
-1
-1
1
2
2
1
1
1
2
-1
-1
1
-1
1
2
-1
1
2
1
2
2
-1
2
1
2
2
-1
2
2
-1
2
1
2
1
-1
-1
1
1
-1
2
1
2
2
1
1
1
1
2
2
-1
-1
1
2
2
-1
2
-1
-1
-1
1
2
1
1
2
2
1
-1
-1
2
2
2
1
-1
1
2
2
-1
1
-1
-1
-1
1
2
1
2
1
-1
-1
1
2
2
-1
2
2
2
...

result:

ok 200000 numbers

Test #5:

score: 0
Accepted
time: 866ms
memory: 540076kb

input:

200000
999999511 993051669
2 5000 5000 5000 5000
1000000000 1000000000
3 5000 5000 5000 5000 5000 5000
995868520 999999999
2 5000 5000 5000 5000
660478427 999992996
3 5000 5000 5000 5000 5000 5000
999999979 999999998
2 5000 5000 5000 5000
861450412 989532141
3 5000 5000 5000 5000 5000 5000
949861679...

output:

145800
198491
112658
29436
38091
122582
7727
87686
192036
97288
60184
836
39235
158331
121422
117149
189664
153018
181334
56603
69911
173097
165342
124250
103223
110099
177817
11459
37052
28918
57236
143793
19234
10313
75590
6597
18202
176357
102394
179685
5171
162359
72023
56758
88764
17257
100583
...

result:

ok 200000 numbers

Test #6:

score: 0
Accepted
time: 8ms
memory: 80532kb

input:

20
1538 3628
4 2423 3790 3127 3961 2614 3582 2016 4789
1441 276
3 2518 253 4221 265 3236 2574
1668 3370
4 4489 3533 4501 2177 1067 2337 2765 1480
1179 1926
3 4922 2537 1477 653 325 444
3964 2924
2 3415 4463 822 3257
210 4068
2 1969 167 1978 3712
2067 540
4 1560 2211 4050 4196 442 2279 442 2448
2962 ...

output:

5
14
5
1
2
3
6
-1
8
7
2
11
1
8
8
3
3
13
4
5

result:

ok 20 numbers

Test #7:

score: -100
Wrong Answer
time: 3ms
memory: 78496kb

input:

66
121 3727
2 1379 2036 975 1594
205 708
2 523 2978 176 2924
2528 440
4 3182 2078 1340 2166 1563 447 1076 157
3242 2859
5 2029 4660 2789 1593 4534 4137 921 3966 3440 1964
1503 3975
3 1354 3815 825 4981 1710 2692
858 2524
3 3395 3523 2184 4115 4043 3518
2610 731
3 3735 2799 442 1348 3101 2847
4306 14...

output:

9
9
19
-1
3
17
23
2
4
48
13
-1
-1
38
-1
17
-1
-1
-1
51
4
9
-1
-1
3
24
14
5
-1
-1
33
-1
42
5
-1
17
-1
23
24
33
-1
-1
9
-1
-1
1
-1
-1
33
37
7
-1
20
-1
1
17
-1
33
-1
32
-1
37
-1
5
42
2

result:

wrong answer 2nd numbers differ - expected: '12', found: '9'