oj.uz

답안 #764062

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
764062 2023-06-23T06:27:16 Z Ryuga_ 경주 (Race) (IOI11_race) C++17
100 / 100
 197 ms 82132 KB 
#ifdef IS_DEBUG
#pragma ide diagnostic ignored "hicpp-signed-bitwise"
#pragma ide diagnostic ignored "cert-err58-cpp"
#pragma ide diagnostic ignored "cppcoreguidelines-pro-type-member-init"
#pragma ide diagnostic ignored "bugprone-reserved-identifier"
#endif
 
#include <bits/stdc++.h>
#include <bits/extc++.h>
 
#ifndef IS_DEBUG
#define dout false && cout
#endif
 
using namespace std;
using namespace __gnu_pbds;
 
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define memset0(x,i) memset(x,i,sizeof(x))
#define count1 __builtin_popcount
#define lead0 __builtin_clz
#define trail0 __builtin_ctz
#define min(...) _min(__VA_ARGS__)
#define max(...) _max(__VA_ARGS__)
#define FOR(i,l,r) for(int i=l;i<r;++i)
#define FORe(i,l,r) for(int i=l;i<=r;++i)
#define ROF(i,l,r) for(int i=r-1;i>=l;--i)
#define ROFe(i,l,r) for(int i=r;i>=l;--i)
#define trav(a,v) for(auto&a:v)
using ll = long long;
using vi = vector<int>;
using pii = pair<int,int>;
using db = double;
using ld = long double;
template<size_t x>struct lg2{enum{v=1+lg2<(x>>1)>::v};};template<>struct lg2<0>{enum{v=0};};
inline ll gcd(ll a,ll b){return b==0?a:gcd(b,a%b);}
inline ll cdiv(ll a,ll b){return a/b+((a^b)>0&&a%b);}
inline ll fdiv(ll a,ll b){return a/b-((a^b)<0&&a%b);}
bool prime(int n){if(n%2==0||n%3==0)return false;for(int i=5;i*i<=n;i+=6)if(n%i==0||n%(i+2)==0)return false;return true;}
template<class T>using set2 = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
template<class T1,class T2>using map2 = tree<T1,T2,less<T1>,rb_tree_tag,tree_order_statistics_node_update>;
template<class T>using heap = __gnu_pbds::priority_queue<T,greater<T>,pairing_heap_tag>;
template<class T>using max_heap = __gnu_pbds::priority_queue<T,less<T>,pairing_heap_tag>;
template<class T1,class T2>using unordered_map2 = gp_hash_table<T1,T2>;
template<class T1,class T2>unordered_map2<T1,T2> unordered_map2_size(int exp2){
    return unordered_map2<T1,T2>({},{},{},{},{(uint32_t)1<<exp2});}
template<class T>using unordered_set2 = unordered_map2<T,null_type>;
template<class T>unordered_set2<T> unordered_set2_size(int exp2) {return unordered_map2_size<T,null_type>(exp2);}
template<class T>constexpr const T&_min(const T&x,const T&y){return x<y?x:y;}
template<class T>constexpr const T&_max(const T&x,const T&y){return x<y?y:x;}
template<class T,class...Ts>constexpr const T&_min(const T&x,const Ts&...xs){return _min(x,_min(xs...));}
template<class T,class...Ts>constexpr const T&_max(const T&x,const Ts&...xs){return _max(x,_max(xs...));}
template<class A> void re(complex<A>& c);
template<class A, class B> void re(pair<A,B>& p);
template<class A> void re(vector<A>& v);
template<class A, size_t SZ> void re(array<A,SZ>& a);
template<class T> void re(T& x) { cin >> x; }
void re(db& d) { string t; re(t); d = stod(t); }
void re(ld& d) { string t; re(t); d = stold(t); }
template<class H, class... T> void re(H& h, T&... t) { re(h); re(t...); }
template<class A> void re(complex<A>& c) { A a,b; re(a,b); c = {a,b}; }
template<class A, class B> void re(pair<A,B>& p) { re(p.fi,p.se); }
template<class A> void re(vector<A>& x) { trav(a,x) re(a); }
template<class A, size_t SZ> void re(array<A,SZ>& x) { trav(a,x) re(a); }
template<class A> void pr(A x) { cout << x; }
template<class H, class... T> void pr(const H& h, const T&... t) { pr(h); pr(t...); }
void ps() { pr("\n"); } // print w/ spaces
template<class H, class... T> void ps(const H& h, const T&... t) { pr(h); if (sizeof...(t)) pr(" "); ps(t...); }
void setIO(){
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
#ifdef IS_DEBUG
    freopen("../input.txt", "r", stdin);
#endif
}
namespace std{template<class T1,class T2> struct hash<pair<T1,T2>>{
        size_t operator()(const pair<T1,T2>&p)const{return 31*hash<T1>{}(p.fi)+hash<T2>{}(p.se);}
    };}
template<class T>struct BIT{
    T n,*a;
    T sum(int i){T s=0;for(i++;i>0;i-=i&-i)s+=a[i];return s;}
    void edit(int i,T x){for(i++;i<=n;i+=i&-i)a[i]+=x;}
    void init(int m){n=m;a=new T[n+1]();}
    void init(T*arr,int m){init(m);FOR(i,0,n)edit(i,arr[i]);}
    BIT()=default;BIT(T*arr,int m){init(arr,m);}~BIT(){delete[]a;}
};
//endregion
 
struct T {
    unordered_map2<int, int> t;
    int k1 = 0;
    int k2 = 0;
    int size() {
        return t.size();
    }
    int get(int a) {
        auto it = t.find(a - k1);
        if (it != t.end()) {
            return it->se + k2;
        }
        else {
            return -1;
        }
    }
    void insert(int a, int b) {
        auto it = t.find(a - k1);
        if (it != t.end()) {
            it->se = min(it->se, b - k2);
        }
        else {
            t[a - k1] = b - k2;
        }
    }
    void swap(T &other) {
        std::swap(k2, other.k2);
        std::swap(k1, other.k1);
        t.swap(other.t);
    }
};
 
const int MaxN = 200001;
int N, K;
vector<pii> adj[MaxN];
int best = INT_MAX;
 
T dfs(int a, int p) {
    T t;
    t.insert(0, 0);
    trav(e, adj[a]) {
        int b = e.fi;
        int l = e.se;
        if (b == p) continue;
        T t1 = dfs(b, a);
        t1.k1 += l;
        t1.k2++;
        if (t1.size() > t.size()) {
            t.swap(t1);
        }
        trav(x, t1.t) {
            int len = x.fi + t1.k1;
            int score = x.se + t1.k2;
            int result = t.get(K - len);
            if (result != -1) {
                best = min(best, result + score);
            }
        }
        trav(x, t1.t) {
            int len = x.fi + t1.k1;
            int score = x.se + t1.k2;
            if (len < K) {
                t.insert(len, score);
            }
        }
    }
    return t;
}
 
int best_path(int _N, int _K, int H[][2], int L[]) {
    N = _N;
    K = _K;
    FOR(i, 0, N-1) {
        int a = H[i][0];
        int b = H[i][1];
        adj[a].eb(b, L[i]);
        adj[b].eb(a, L[i]);
    }
    dfs(0, 0);
    if (best == INT_MAX)
        best = -1;
    return best;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 4 ms 4948 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5124 KB Output is correct
30 Correct 3 ms 5076 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 5076 KB Output is correct
35 Correct 3 ms 5204 KB Output is correct
36 Correct 3 ms 5204 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 4 ms 5076 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 56 ms 9876 KB Output is correct
20 Correct 56 ms 9856 KB Output is correct
21 Correct 84 ms 9908 KB Output is correct
22 Correct 58 ms 9904 KB Output is correct
23 Correct 54 ms 10056 KB Output is correct
24 Correct 53 ms 9968 KB Output is correct
25 Correct 58 ms 27600 KB Output is correct
26 Correct 56 ms 43736 KB Output is correct
27 Correct 114 ms 15036 KB Output is correct
28 Correct 175 ms 82132 KB Output is correct
29 Correct 145 ms 77512 KB Output is correct
30 Correct 108 ms 15124 KB Output is correct
31 Correct 112 ms 15124 KB Output is correct
32 Correct 135 ms 15260 KB Output is correct
33 Correct 94 ms 14828 KB Output is correct
34 Correct 86 ms 14540 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 4 ms 4948 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5124 KB Output is correct
30 Correct 3 ms 5076 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 5076 KB Output is correct
35 Correct 3 ms 5204 KB Output is correct
36 Correct 3 ms 5204 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 4 ms 5076 KB Output is correct
39 Correct 56 ms 9876 KB Output is correct
40 Correct 56 ms 9856 KB Output is correct
41 Correct 84 ms 9908 KB Output is correct
42 Correct 58 ms 9904 KB Output is correct
43 Correct 54 ms 10056 KB Output is correct
44 Correct 53 ms 9968 KB Output is correct
45 Correct 58 ms 27600 KB Output is correct
46 Correct 56 ms 43736 KB Output is correct
47 Correct 114 ms 15036 KB Output is correct
48 Correct 175 ms 82132 KB Output is correct
49 Correct 145 ms 77512 KB Output is correct
50 Correct 108 ms 15124 KB Output is correct
51 Correct 112 ms 15124 KB Output is correct
52 Correct 135 ms 15260 KB Output is correct
53 Correct 94 ms 14828 KB Output is correct
54 Correct 86 ms 14540 KB Output is correct
55 Correct 9 ms 5844 KB Output is correct
56 Correct 7 ms 5460 KB Output is correct
57 Correct 47 ms 10008 KB Output is correct
58 Correct 35 ms 10028 KB Output is correct
59 Correct 64 ms 43776 KB Output is correct
60 Correct 145 ms 79392 KB Output is correct
61 Correct 136 ms 15400 KB Output is correct
62 Correct 110 ms 15180 KB Output is correct
63 Correct 112 ms 15300 KB Output is correct
64 Correct 197 ms 22136 KB Output is correct
65 Correct 109 ms 14784 KB Output is correct
66 Correct 147 ms 73292 KB Output is correct
67 Correct 86 ms 15192 KB Output is correct
68 Correct 171 ms 24636 KB Output is correct
69 Correct 144 ms 26376 KB Output is correct
70 Correct 156 ms 24372 KB Output is correct