Submission #819638

#	Time	Username	Problem	Language	Result	Execution time	Memory
819638		Wayne_Yan	Fountain Parks (IOI21_parks)	C++17	5 / 100	44 ms	8252 KiB

parks

#include "parks.h"

#include <bits/stdc++.h>
using namespace std;
void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef zisk
#define debug(x...) cerr << "[" << #x << "] = [", _print(x)
template<class T> void pary(T l, T r) {
	while (l != r) cout << *l << " ", l++;
	cout << endl;
}
#else
#define debug(x...)
template<class T> void pary(T l, T r) {}
#endif

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define vi vector<int>
#define pb emplace_back
#define mp make_pair
#define mt make_tuple
#define pii pair<int,int>
#define pll pair<ll,ll>
#define F(n) Fi(i,n)
#define Fi(i,n) Fl(i,0,n)
#define Fl(i,l,n) for(int i=l;i<n;i++)
#define RF(n) RFi(i,n)
#define RFi(i,n) RFl(i,0,n)
#define RFl(i,l,n) for(int i=n-1;i>=l;i--)
#define all(v) begin(v),end(v)
#define siz(v) ((long long)(v.size()))
#define get_pos(v,x) (lower_bound(all(v),x)-begin(v))
#define sort_uni(v) sort(begin(v),end(v)),v.erase(unique(begin(v),end(v)),end(v))
#define mem(v,x) memset(v,x,sizeof v)
#define ff first
#define ss second
#define RAN(a,b) uniform_int_distribution<int> (a, b)(rng) // inclusive
#define cmax(a,b) (a = max(a,b))
#define cmin(a,b) (a = min(a,b))
typedef long long ll;
typedef long double ld;

const int maxN = 2e5 + 10;

int construct_roads(std::vector<int> x, std::vector<int> y) {
    
    int n = siz(x);
    vector<int> idx(maxN);
    F(n) idx[y[i]] = i; 

    sort(all(y));

    F(n-1) if(y[i+1] - y[i] != 2) return 0;

    vector<int> u, v, a ,b;
    F(n-1){
        u.pb(idx[y[i]]);
        v.pb(idx[y[i+1]]);
        a.pb(3);
        b.pb(y[i] + 1);
    }

    build(u, v, a, b);
    return 1;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30