結果
| 問題 |
No.2161 Black Market
|
| コンテスト | |
| ユーザー |
t9unkubj
|
| 提出日時 | 2024-09-30 23:39:50 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 658 ms / 7,000 ms |
| コード長 | 6,365 bytes |
| コンパイル時間 | 4,250 ms |
| コンパイル使用メモリ | 286,600 KB |
| 実行使用メモリ | 74,004 KB |
| 最終ジャッジ日時 | 2024-09-30 23:40:01 |
| 合計ジャッジ時間 | 9,219 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 37 |
ソースコード
#ifdef t9unkubj
#include"template.h"
//#include"template_no_debug.h"
#else
#undef _GLIBCXX_DEBUG
#pragma GCC optimize("O3")
#define dbg(...) 199958
using namespace std;
#include<bits/stdc++.h>
using uint=unsigned;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
using pii=pair<int,int>;
using pll=pair<ll,ll>;
template<class T>using vc=vector<T>;
template<class T>using vvc=vc<vc<T>>;
template<class T>using vvvc=vvc<vc<T>>;
using vi=vc<int>;
using vvi=vc<vi>;
using vvvi=vc<vvi>;
using vl=vc<ll>;
using vvl=vc<vl>;
using vvvl=vc<vvl>;
template<class T>using smpq=priority_queue<T,vector<T>,greater<T>>;
template<class T>using bipq=priority_queue<T>;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,j,n) for(ll i=(j);i<(ll)(n);i++)
#define DREP(i,n,m) for(ll i=(n);i>=(m);i--)
#define drep(i,n) for(ll i=((n)-1);i>=0;i--)
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define is insert
#define bg begin()
#define ed end()
void scan(int&a) { cin >> a; }
void scan(ll&a) { cin >> a; }
void scan(string&a) { cin >> a; }
void scan(char&a) { cin >> a; }
void scan(uint&a) { cin >> a; }
void scan(ull&a) { cin >> a; }
void scan(bool&a) { cin >> a; }
void scan(ld&a){ cin>> a;}
template<class T> void scan(vector<T>&a) { for(auto&x:a) scan(x); }
void read() {}
template<class Head, class... Tail> void read(Head&head, Tail&... tail) { scan(head); read(tail...); }
#define INT(...) int __VA_ARGS__; read(__VA_ARGS__);
#define LL(...) ll __VA_ARGS__; read(__VA_ARGS__);
#define ULL(...) ull __VA_ARGS__; read(__VA_ARGS__);
#define STR(...) string __VA_ARGS__; read(__VA_ARGS__);
#define CHR(...) char __VA_ARGS__; read(__VA_ARGS__);
#define DBL(...) double __VA_ARGS__; read(__VA_ARGS__);
#define LD(...) ld __VA_ARGS__; read(__VA_ARGS__);
#define VC(type, name, ...) vector<type> name(__VA_ARGS__); read(name);
#define VVC(type, name, size, ...) vector<vector<type>> name(size, vector<type>(__VA_ARGS__)); read(name);
void print(int a) { cout << a; }
void print(ll a) { cout << a; }
void print(string a) { cout << a; }
void print(char a) { cout << a; }
void print(uint a) { cout << a; }
void print(bool a) { cout << a; }
void print(ull a) { cout << a; }
void print(double a) { cout << a; }
void print(ld a){ cout<< a; }
template<class T> void print(vector<T>a) { for(int i=0;i<(int)a.size();i++){if(i)cout<<" ";print(a[i]);}cout<<endl;}
void PRT() { cout <<endl; return ; }
template<class T> void PRT(T a) { print(a); cout <<endl; return; }
template<class Head, class... Tail> void PRT(Head head, Tail ... tail) { print(head); cout << " "; PRT(tail...); return; }
template<class T,class F>
bool chmin(T &x, F y){
if(x>y){
x=y;
return true;
}
return false;
}
template<class T, class F>
bool chmax(T &x, F y){
if(x<y){
x=y;
return true;
}
return false;
}
void YesNo(bool b){
cout<<(b?"Yes":"No")<<endl;
}
void Yes(){
cout<<"Yes"<<endl;
}
void No(){
cout<<"No"<<endl;
}
template<class T>
int popcount(T n){
return __builtin_popcountll(n);
}
template<class T>
T sum(vc<T>&a){
return accumulate(all(a),T(0));
}
template<class T>
T max(vc<T>&a){
return *max_element(all(a));
}
template<class T>
T min(vc<T>&a){
return *min_element(all(a));
}
template<class T>
void unique(vc<T>&a){
a.erase(unique(all(a)),a.end());
}
vvi readgraph(int n,int m,int off = -1){
vvi g(n);
rep(i, m){
int u,v;
cin>>u>>v;
u+=off,v+=off;
g[u].push_back(v);
g[v].push_back(u);
}
return g;
}
vvi readtree(int n,int off=-1){
return readgraph(n,n-1,off);
}
template<class T>
vc<T> presum(vc<T> &a){
vc<T> ret(a.size()+1);
rep(i,a.size())ret[i+1]=ret[i]+a[i];
return ret;
}
template<class T, class F>
vc<T> &operator+=(vc<T> &a,F b){
for (auto&v:a)v += b;
return a;
}
template<class T, class F>
vc<T> &operator-=(vc<T>&a,F b){
for (auto&v:a)v-=b;
return a;
}
template<class T, class F>
vc<T> &operator*=(vc<T>&a,F b){
for (auto&v:a)v*=b;
return a;
}
#endif
double pass_time=0;
#include<vector>
template <class T = long long >
struct BIT {
int n;
std::vector<T>data;
void add(int i,T x){
assert(i>=0&&i<n);
i++;
for(;i<=n;){
data[i - 1] += x;
i += (i & -i);
}
return;
}
T internal_sum(int r){
T ret = 0;
for(;r;){
ret += data[r - 1];
r -= (r & -r);
}
return ret;
}
T sum(int l,int r){
return internal_sum(r)-internal_sum(l);
}
BIT():n(0), data(0) {}
BIT(int N):n(N), data(N) {}
BIT(std::vector<T>& a){
n = a.size();
data.assign(n, 0);
for (int i = 0; i < n; i++)add(i, a[i]);
}
int lower_bound(T w) {
if (w <= 0) {
return 0;
} else {
int x = 0, r = 1;
while (r < n) r = r << 1;
for (int len = r; len > 0; len = len >> 1) {
if (x + len < n && data[x + len] < w) {
w -= data[x + len];
x += len;
}
}
return x;
}
}
};
void solve(){
INT(n,k,l,p);
vi a(n),b(n);
rep(i,n)cin>>a[i]>>b[i];
int half=n/2;
vc<array<ll,3>>cs;
rep(i,1<<half){
ll cost=0,val=0;
rep(j,half)if(i>>j&1)cost+=a[j],val+=b[j];
cs.pb({cost,val,popcount(i)});
}
int half2=n-half;
vc<array<ll,3>>cs2;
rep(i,1<<half2){
ll cost=0,val=0;
rep(j,half2)if(i>>j&1)cost+=a[j+half],val+=b[j+half];
cs2.pb({l-cost,p-val,popcount(i)});
}
map<ll,ll>ma;
for(auto&[x,y,i]:cs)ma[y]=0;
for(auto&[x,y,i]:cs2)ma[y]=0;
int id=0;
for(auto&[x,y]:ma)y=id++;
int K=ma.size();
vc<BIT<int>>bit(n+1,BIT<int>(K));
vc<array<ll,4>>ev;
for(auto&[x,y,i]:cs)ev.pb({x,0,y,i});
for(auto&[x,y,i]:cs2)ev.pb({x,1,y,k-i});
sort(all(ev));
ll ans=0;
for(auto [x,t,y,i]:ev){
if(t==0)bit[i].add(ma[y],1);
else rep(j,i+1)ans+=bit[j].sum(ma[y],K);
}
PRT(ans);
}
signed main(){
cin.tie(0)->sync_with_stdio(0);
pass_time=clock();
int t=1;
//cin>>t;
while(t--)solve();
pass_time=clock()-pass_time;
dbg(pass_time/CLOCKS_PER_SEC);
}
t9unkubj