oj.uz

답안 #519499

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
519499 2022-01-26T12:54:10 Z rrrr10000 Dragon 2 (JOI17_dragon2) C++14
100 / 100
 631 ms 9664 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n)  for(long long i=0;i<(long long)(n);i++)
#define REP(i,k,n) for(long long i=k;i<(long long)(n);i++)
#define pb emplace_back
#define lb(v,k) (lower_bound(all(v),(k))-v.begin())
#define ub(v,k) (upper_bound(all(v),(k))-v.begin())
#define fi first
#define se second
#define pi M_PI
#define PQ(T) priority_queue<T>
#define SPQ(T) priority_queue<T,vector<T>,greater<T>>
#define dame(a) {out(a);return 0;}
#define decimal cout<<fixed<<setprecision(15);
#define all(a) a.begin(),a.end()
#define rsort(a) {sort(all(a));reverse(all(a));}
#define dupli(a) {sort(all(a));a.erase(unique(all(a)),a.end());}
#define popcnt __builtin_popcountll
typedef long long ll;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> PP;
typedef tuple<ll,ll,ll,ll> PPP;
using vi=vector<ll>;
using vvi=vector<vi>;
using vvvi=vector<vvi>;
using vvvvi=vector<vvvi>;
using vp=vector<P>;
using vvp=vector<vp>;
using vb=vector<bool>;
using vvb=vector<vb>;
const ll inf=4001001001001001001;
const ll INF=1001001001;
const ll mod=1000000007;
const double eps=1e-10;
template<class T> bool chmin(T&a,T b){if(a>b){a=b;return true;}return false;}
template<class T> bool chmax(T&a,T b){if(a<b){a=b;return true;}return false;}
template<class T> void out(T a){cout<<a<<'\n';}
template<class T> void outp(T a){cout<<'('<<a.fi<<','<<a.se<<')'<<'\n';}
template<class T> void outvp(T v){rep(i,v.size())cout<<'('<<v[i].fi<<','<<v[i].se<<')';cout<<'\n';}
template<class T> void outvvp(T v){rep(i,v.size())outvp(v[i]);}
template<class T> void outv(T v){rep(i,v.size()){if(i)cout<<' ';cout<<v[i];}cout<<'\n';}
template<class T> void outvv(T v){rep(i,v.size())outv(v[i]);}
template<class T> bool isin(T x,T l,T r){return (l)<=(x)&&(x)<=(r);}
template<class T> void yesno(T b){if(b)out("yes");else out("no");}
template<class T> void YesNo(T b){if(b)out("Yes");else out("No");}
template<class T> void YESNO(T b){if(b)out("YES");else out("NO");}
template<class T> void outset(T s){auto itr=s.begin();while(itr!=s.end()){if(itr!=s.begin())cout<<' ';cout<<*itr;itr++;}cout<<'\n';}
void outs(ll a,ll b){if(a>=inf-100)out(b);else out(a);}
ll gcd(ll a,ll b){if(b==0)return a;return gcd(b,a%b);}
ll modpow(ll a,ll b){ll res=1;a%=mod;while(b){if(b&1)res=res*a%mod;a=a*a%mod;b>>=1;}return res;}
inline ll readll() {
    ll x = 0;
    int neg=1;
    char ch = getchar_unlocked();
    while (ch < '0' || ch > '9'){
        if(ch=='-')neg=-1;
        ch = getchar_unlocked();
    }
    while (ch >= '0' && ch <= '9'){
		x = (x << 3) + (x << 1) + ch - '0';
		ch = getchar_unlocked();
	}
    return x*neg;
}
struct Point{
    ll x,y;
    Point(){}
    Point(ll a,ll b):x(a),y(b){}
    bool ccw(Point a,Point b){
        ll dx1=x-a.x,dy1=y-a.y;
        ll dx2=b.x-a.x,dy2=b.y-a.y;
        return dx1*dy2-dx2*dy1>0;
    }
};
class BIT{
    vi bit;ll n;
    ll sum(ll i){
        ll res=0;
        for(;i;i-=i&-i)res+=bit[i];
        return res;
    }
public:
    BIT(ll n_):n(n_){bit=vi(n+1);}
    void add(ll i,ll x){
        for(i++;i<=n;i+=i&-i)bit[i]+=x;
    }
    ll get(ll a,ll b){
        if(b<=a)return 0ll;
        return sum(b)-sum(a);
    }
    ll solve(ll x){ //sum([0,r])>=x となる最小のr
        if(x<=0)return -1;
        ll l=0,len=1;while(len<n)len<<=1;
        for(;len;len>>=1)if(l+len<n&&bit[l+len]<x){
            x-=bit[l+len];l+=len;
        }
        return l;
    }
};
const ll B=300;
int main(){
    cout<<fixed<<setprecision(20);
    ll n,m;cin>>m>>n;
    vector<vector<Point>> v(n);
    rep(i,m){
        ll a,b,c;cin>>a>>b>>c;c--;
        v[c].pb(Point(a,b));
    }
    Point a,b;
    cin>>a.x>>a.y>>b.x>>b.y;
    auto cmpy=[&](Point s,Point t){
        Point x(b.x-a.x,b.y-a.y),y(t.x-s.x,t.y-s.y);
        if(x.x*y.y==x.y*y.x){
            if(a.y==t.y)return a.x<t.x;
            return a.y<t.y;
        }
        return x.x*y.y>x.y*y.x;
    };
    ll q;cin>>q;
    rep(i,n)sort(all(v[i]),cmpy);
    vvp L(n),S(n);
    rep(i,q){
        ll a,b;cin>>a>>b;a--;b--;
        if(v[a].size()==0||v[b].size()==0)continue;
        if(v[a].size()<=B||v[b].size()>B)S[a].pb(b,i);
        else L[b].pb(a,i);
    }
    vi ans(q);
    ll cnt_id=0;
    vvi id(n);
    rep(i,n)rep(j,v[i].size())id[i].pb(cnt_id++);
    vector<pair<Point,P>> srt;
    rep(i,n)rep(j,v[i].size())srt.pb(v[i][j],P(i,j));
    // rep(i,n)rep(j,v[i].size())out(v[i][j].Angle(a,b));
    {
        auto comp=[&](pair<Point,P> s,pair<Point,P> t){
            Point x=s.fi,y=t.fi;
            if(x.ccw(a,b)){
                x.x=a.x*2-x.x;
                x.y=a.y*2-x.y;
            }
            if(y.ccw(a,b)){
                y.x=a.x*2-y.x;
                y.y=a.y*2-y.y;
            }
            return !y.ccw(a,x);
        };
        sort(all(srt),comp);
        BIT bit(m);
        rep(i,n)rep(j,v[i].size())if(!v[i][j].ccw(a,b))bit.add(id[i][j],1);
        for(auto x:srt){
            auto p=x.fi;
            // cout<<p.x<<' '<<p.y<<endl;
            ll i=x.se.fi,j=x.se.se;
            if(!p.ccw(a,b))bit.add(id[i][j],-1);
            for(auto query:S[i]){
                ll k=query.fi;
                if(p.ccw(a,b)){
                    ll l=lower_bound(all(v[k]),p,cmpy)-v[k].begin();
                    if(l<v[k].size())l=id[k][l];
                    else l=id[k].back()+1;
                    ans[query.se]-=bit.get(l,id[k].back()+1);
                }
                else{
                    ll r=lower_bound(all(v[k]),p,cmpy)-v[k].begin();
                    if(r<v[k].size())r=id[k][r];
                    else r=id[k].back()+1;
                    ans[query.se]-=bit.get(id[k][0],r);
                }
            }
            for(auto query:L[i]){
                ll k=query.fi;
                if(p.ccw(a,b)){
                    ll l=lower_bound(all(v[k]),a,cmpy)-v[k].begin();
                    if(l<v[k].size())l=id[k][l];
                    else l=id[k].back()+1;
                    ans[query.se]-=bit.get(l,id[k].back()+1);
                    ll r=lower_bound(all(v[k]),p,cmpy)-v[k].begin();
                    if(r<v[k].size())r=id[k][r];
                    else r=id[k].back()+1;
                    ans[query.se]+=bit.get(id[k][0],r);
                }
                else{
                    ll l=lower_bound(all(v[k]),p,cmpy)-v[k].begin();
                    if(l<v[k].size())l=id[k][l];
                    else l=id[k].back()+1;
                    ans[query.se]+=bit.get(l,id[k].back()+1);
                    ll r=lower_bound(all(v[k]),a,cmpy)-v[k].begin();
                    if(r<v[k].size())r=id[k][r];
                    else r=id[k].back()+1;
                    ans[query.se]-=bit.get(id[k][0],r);
                }
            }
            if(p.ccw(a,b))bit.add(id[i][j],1);
        }
    }
    {
        auto comp=[&](pair<Point,P> s,pair<Point,P> t){
            Point x=s.fi,y=t.fi;
            if(x.ccw(a,b)){
                x.x=b.x*2-x.x;
                x.y=b.y*2-x.y;
            }
            if(y.ccw(a,b)){
                y.x=b.x*2-y.x;
                y.y=b.y*2-y.y;
            }
            return !y.ccw(b,x);
        };
        sort(all(srt),comp);
        BIT bit(m);
        rep(i,n)rep(j,v[i].size())if(!v[i][j].ccw(a,b))bit.add(id[i][j],1);
        for(auto x:srt){
            Point p=x.fi;
            // cout<<p.x<<' '<<p.y<<endl;
            ll i=x.se.fi,j=x.se.se;
            if(!p.ccw(a,b))bit.add(id[i][j],-1);
            for(auto query:S[i]){
                ll k=query.fi;
                if(p.ccw(a,b)){
                    ll l=lower_bound(all(v[k]),p,cmpy)-v[k].begin();
                    if(l<v[k].size())l=id[k][l];
                    else l=id[k].back()+1;
                    ans[query.se]+=bit.get(l,id[k].back()+1);
                }
                else{
                    ll r=lower_bound(all(v[k]),p,cmpy)-v[k].begin();
                    if(r<v[k].size())r=id[k][r];
                    else r=id[k].back()+1;
                    ans[query.se]+=bit.get(id[k][0],r);
                }
            }
            for(auto query:L[i]){
                ll k=query.fi;
                if(p.ccw(a,b)){
                    ll l=lower_bound(all(v[k]),b,cmpy)-v[k].begin();
                    if(l<v[k].size())l=id[k][l];
                    else l=id[k].back()+1;
                    ans[query.se]+=bit.get(l,id[k].back()+1);
                    ll r=lower_bound(all(v[k]),p,cmpy)-v[k].begin();
                    if(r<v[k].size())r=id[k][r];
                    else r=id[k].back()+1;
                    ans[query.se]-=bit.get(id[k][0],r);
                }
                else{
                    ll l=lower_bound(all(v[k]),p,cmpy)-v[k].begin();
                    if(l<v[k].size())l=id[k][l];
                    else l=id[k].back()+1;
                    ans[query.se]-=bit.get(l,id[k].back()+1);
                    ll r=lower_bound(all(v[k]),b,cmpy)-v[k].begin();
                    if(r<v[k].size())r=id[k][r];
                    else r=id[k].back()+1;
                    ans[query.se]+=bit.get(id[k][0],r);
                }
            }
            if(p.ccw(a,b))bit.add(id[i][j],1);
            // outv(ans);
        }
    }
    for(ll x:ans)out(x);
}

Compilation message

dragon2.cpp: In function 'int main()':
dragon2.cpp:160:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  160 |                     if(l<v[k].size())l=id[k][l];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:166:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  166 |                     if(r<v[k].size())r=id[k][r];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:175:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  175 |                     if(l<v[k].size())l=id[k][l];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:179:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  179 |                     if(r<v[k].size())r=id[k][r];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:185:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  185 |                     if(l<v[k].size())l=id[k][l];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:189:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  189 |                     if(r<v[k].size())r=id[k][r];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:222:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  222 |                     if(l<v[k].size())l=id[k][l];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:228:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  228 |                     if(r<v[k].size())r=id[k][r];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:237:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  237 |                     if(l<v[k].size())l=id[k][l];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:241:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  241 |                     if(r<v[k].size())r=id[k][r];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:247:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  247 |                     if(l<v[k].size())l=id[k][l];
      |                        ~^~~~~~~~~~~~
dragon2.cpp:251:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  251 |                     if(r<v[k].size())r=id[k][r];
      |                        ~^~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 592 KB Output is correct
2 Correct 7 ms 720 KB Output is correct
3 Correct 26 ms 848 KB Output is correct
4 Correct 85 ms 4620 KB Output is correct
5 Correct 62 ms 3784 KB Output is correct
6 Correct 6 ms 1104 KB Output is correct
7 Correct 7 ms 1104 KB Output is correct
8 Correct 5 ms 640 KB Output is correct
9 Correct 4 ms 568 KB Output is correct
10 Correct 5 ms 592 KB Output is correct

Subtask #2
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 47 ms 2916 KB Output is correct
2 Correct 82 ms 3036 KB Output is correct
3 Correct 51 ms 3372 KB Output is correct
4 Correct 50 ms 3312 KB Output is correct
5 Correct 50 ms 6488 KB Output is correct
6 Correct 44 ms 2928 KB Output is correct
7 Correct 45 ms 2988 KB Output is correct
8 Correct 43 ms 2880 KB Output is correct
9 Correct 34 ms 2684 KB Output is correct
10 Correct 33 ms 2720 KB Output is correct

Subtask #3
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 592 KB Output is correct
2 Correct 7 ms 720 KB Output is correct
3 Correct 26 ms 848 KB Output is correct
4 Correct 85 ms 4620 KB Output is correct
5 Correct 62 ms 3784 KB Output is correct
6 Correct 6 ms 1104 KB Output is correct
7 Correct 7 ms 1104 KB Output is correct
8 Correct 5 ms 640 KB Output is correct
9 Correct 4 ms 568 KB Output is correct
10 Correct 5 ms 592 KB Output is correct
11 Correct 47 ms 2916 KB Output is correct
12 Correct 82 ms 3036 KB Output is correct
13 Correct 51 ms 3372 KB Output is correct
14 Correct 50 ms 3312 KB Output is correct
15 Correct 50 ms 6488 KB Output is correct
16 Correct 44 ms 2928 KB Output is correct
17 Correct 45 ms 2988 KB Output is correct
18 Correct 43 ms 2880 KB Output is correct
19 Correct 34 ms 2684 KB Output is correct
20 Correct 33 ms 2720 KB Output is correct
21 Correct 47 ms 2880 KB Output is correct
22 Correct 82 ms 2948 KB Output is correct
23 Correct 366 ms 3696 KB Output is correct
24 Correct 631 ms 7304 KB Output is correct
25 Correct 147 ms 8296 KB Output is correct
26 Correct 131 ms 9556 KB Output is correct
27 Correct 58 ms 7624 KB Output is correct
28 Correct 57 ms 7684 KB Output is correct
29 Correct 142 ms 8872 KB Output is correct
30 Correct 102 ms 8384 KB Output is correct
31 Correct 114 ms 8588 KB Output is correct
32 Correct 203 ms 8888 KB Output is correct
33 Correct 491 ms 9548 KB Output is correct
34 Correct 125 ms 8940 KB Output is correct
35 Correct 108 ms 8912 KB Output is correct
36 Correct 121 ms 9436 KB Output is correct
37 Correct 140 ms 9464 KB Output is correct
38 Correct 581 ms 9088 KB Output is correct
39 Correct 537 ms 9248 KB Output is correct
40 Correct 482 ms 9664 KB Output is correct
41 Correct 122 ms 8988 KB Output is correct
42 Correct 130 ms 8932 KB Output is correct
43 Correct 145 ms 8896 KB Output is correct
44 Correct 60 ms 5184 KB Output is correct
45 Correct 60 ms 5184 KB Output is correct
46 Correct 64 ms 5220 KB Output is correct
47 Correct 59 ms 5184 KB Output is correct
48 Correct 62 ms 5140 KB Output is correct
49 Correct 61 ms 5224 KB Output is correct