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답안 #531769

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
531769 2022-03-01T12:56:32 Z BorisBarca 꿈 (IOI13_dreaming) C++14
47 / 100
 142 ms 33860 KB 
/*
$$$$$$$\                      $$\           $$$$$$$\
$$  __$$\                     \__|          $$  __$$\
$$ |  $$ | $$$$$$\   $$$$$$\  $$\  $$$$$$$\ $$ |  $$ | $$$$$$\   $$$$$$\   $$$$$$$\ $$$$$$\
$$$$$$$\ |$$  __$$\ $$  __$$\ $$ |$$  _____|$$$$$$$\ | \____$$\ $$  __$$\ $$  _____|\____$$\
$$  __$$\ $$ /  $$ |$$ |  \__|$$ |\$$$$$$\  $$  __$$\  $$$$$$$ |$$ |  \__|$$ /      $$$$$$$ |
$$ |  $$ |$$ |  $$ |$$ |      $$ | \____$$\ $$ |  $$ |$$  __$$ |$$ |      $$ |     $$  __$$ |
$$$$$$$  |\$$$$$$  |$$ |      $$ |$$$$$$$  |$$$$$$$  |\$$$$$$$ |$$ |      \$$$$$$$\\$$$$$$$ |
\_______/  \______/ \__|      \__|\_______/ \_______/  \_______|\__|       \_______|\_______|
*/
#include <bits/stdc++.h>
#include <ext/pb_ds/detail/standard_policies.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

#define PB push_back
#define MP make_pair
#define INS insert
#define LB lower_bound
#define UB upper_bound
#define pii pair <int,int>
#define pll pair <long long, long long>
#define X first
#define Y second
#define _ << " " <<
#define sz(x) (int)x.size()
#define all(a) (a).begin(),(a).end()
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define FORD(i, a, b) for (int i = (a); i > (b); --i)
#define FORA(i, x) for (auto &i : x)
#define REP(i, n) FOR(i, 0, n)
#define BITS(x) __builtin_popcount(x)
#define SQ(a) (a) * (a)
#define TRACE(x) cout << #x " = " << (x) << '\n';
#define YES cout << "YES\n"
#define NO cout << "NO\n"
#define umap unordered_map

typedef long long ll;
typedef long double ld;
typedef vector <int> vi;
typedef vector <pii> vpi;
typedef vector <ll> vll;
typedef vector <pll> vpl;
typedef vector <double> vd;
typedef vector <ld> vld;
typedef vector<string> vs;
typedef tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>ordered_set;
//find_by_order -> kti najmanji
//order_of_key -> koliko ima manjih od x
//((float) t)/CLOCKS_PER_SEC

const int MOD = 1e9 + 7;
const double PI = acos(-1);
const int INF = 1e9 + 10;
const ll INFL = 1e18 + 10;
const int ABC = 30;
const int dx[] = {-1, 1, 0, 0};
const int dy[] = {0, 0, -1, 1};
const int dox[] = {-1, 1, 0, 0, -1, -1, 1, 1};
const int doy[] = {0, 0, -1, 1, -1, 1, -1, 1};

inline int sum(int a, int b){
	if (a + b < 0)
		return (a + b + MOD) % MOD;
	return (a + b) % MOD;
}

inline void add(int &a, int b){
	a = sum(a, b);
}

inline int mul(ll a, ll b){
	return ((a % MOD) * ((ll)b % MOD)) % MOD;
}

inline int sub(int a, int b){
	return (a - b + MOD) % MOD;
}

inline int fast_pot(ll pot, ll n){
	ll ret = 1;
	while (n){
		if (n & 1LL)
			ret = (ret * pot) % MOD;
		pot = (pot * pot) % MOD;
		n >>= 1LL;
	}
	return ret;
}

inline int divide(int a, int b){
	return mul(a, fast_pot(b, MOD - 2));
}

ll lcm(ll a, ll b){
	return abs(a * b) / __gcd(a, b);
}

inline int ccw(pii a, pii b, pii c) {
	return a.X * (b.Y - c.Y) + b.X * (c.Y - a.Y) + c.X * (a.Y - b.Y);
}


inline int CCW(pii A, pii B, pii C){
	double val = ccw(A, B, C);
	double eps = max(max(abs(A.X), abs(A.Y)), max(max(abs(B.X), abs(B.Y)), max(abs(C.X), abs(C.Y)))) / 1e9;
	if (val <= -eps)
		return -1;
	if (val >= eps)
		return 1;
	return 0;
}

void to_upper(string &x){
	REP(i, sz(x))
		x[i] = toupper(x[i]);
}

void to_lower(string &x){
	REP(i, sz(x))
		x[i] = tolower(x[i]);
}

string its(ll x){
	if (x == 0)
		return "0";
	string ret = "";
	while (x > 0){
		ret += (x % 10) + '0';
		x /= 10;
	}
	reverse(all(ret));
	return ret;
}

ll sti(string s){
	ll ret = 0;
	REP(i, sz(s)){
		ret *= 10;
		ret += (s[i] - '0');
	}
	return ret;
}

#include "dreaming.h"
const int N = 1e5 + 10;

int a[N], b[N], t[N], idx, bst, d, dp[N], rj[N];
vpi e[N];
vi comp[N];
bool bio[N];

void diam1(int node, int dad, int l){
	if (l > d){
		bst = node;
		d = l;
	}
	bio[node] = 1;
	comp[idx].PB(node);
	FORA(nxt, e[node]){
		if (!bio[nxt.X] && nxt.X != dad)
			diam1(nxt.X, node, l + nxt.Y);
	}
}

void diam2(int node, int dad, int l){
	if (l > d)
		d = l;
	bio[node] = 1;
	FORA(nxt, e[node]){
		if (!bio[nxt.X] && nxt.X != dad)
			diam2(nxt.X, node, l + nxt.Y);
	}
}

void max_lanac(int node, int dad){
	FORA(nxt, e[node]){
		if (nxt.X == dad)
			continue;
		max_lanac(nxt.X, node);
		dp[node] = max(dp[node], dp[nxt.X] + nxt.Y);
	}
}

int calc(int node, int dad, int up){
	multiset <int> ms;
	ms.INS(up);
	FORA(nxt, e[node]){
		if (nxt.X == dad)
			continue;
		ms.INS(dp[nxt.X] + nxt.Y);
	}
	int ret = INF;
	FORA(nxt, e[node]){
		if (nxt.X == dad)
			continue;
		ms.erase(ms.find(dp[nxt.X] + nxt.Y));
		ret = min(ret, calc(nxt.X, node, *ms.rbegin() + nxt.Y));
		ms.INS(dp[nxt.X] + nxt.Y);
	}

	ms.clear();

	rj[node] = max(dp[node], up);
	ret = min(ret, rj[node]);
	return ret;
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]){
	REP(i, M){
		e[A[i]].PB({B[i], T[i]});
		e[B[i]].PB({A[i], T[i]});
	}

	int sol = 0;

	REP(i, N){
		if (bio[i])
			continue;
		bst = -1, d = -1;
		diam1(i, -1, 0);
		FORA(el, comp[idx])
			bio[el] = 0;
		diam2(bst, -1, 0);
		sol = max(sol, d);
		idx++;
	}

	vi ans;
	REP(i, idx){
		max_lanac(comp[i][0], -1);
		ans.PB(calc(comp[i][0], -1, 0));
	}

	sort(all(ans));
	reverse(all(ans));
	sol = max(sol, ans[0] + ans[1] + L);
	return sol;
}

void local(){
	int n, m, l; cin >> n >> m >> l;
	REP(i, m)
		cin >> a[i] >> b[i] >> t[i];
	cout << travelTime(n, m, l, a, b, t) << '\n';
}



/*int main () {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);

	//local();

	return 0;
}*/

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 62 ms 21060 KB Output is correct
2 Correct 86 ms 21528 KB Output is correct
3 Correct 47 ms 20476 KB Output is correct
4 Correct 10 ms 7436 KB Output is correct
5 Correct 9 ms 6328 KB Output is correct
6 Correct 17 ms 8852 KB Output is correct
7 Correct 3 ms 5004 KB Output is correct
8 Correct 30 ms 11984 KB Output is correct
9 Correct 53 ms 17060 KB Output is correct
10 Correct 3 ms 5068 KB Output is correct
11 Correct 62 ms 17212 KB Output is correct
12 Correct 73 ms 19728 KB Output is correct
13 Correct 3 ms 5196 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 5 ms 4984 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 5004 KB Output is correct
8 Correct 3 ms 5008 KB Output is correct
9 Correct 4 ms 5004 KB Output is correct
10 Correct 3 ms 4996 KB Output is correct
11 Correct 3 ms 5000 KB Output is correct
12 Correct 4 ms 4940 KB Output is correct
13 Correct 4 ms 5004 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 5004 KB Output is correct
19 Correct 3 ms 5000 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 3 ms 5004 KB Output is correct
22 Correct 3 ms 5004 KB Output is correct
23 Correct 3 ms 5004 KB Output is correct
24 Correct 3 ms 5004 KB Output is correct
25 Correct 3 ms 4940 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 62 ms 21060 KB Output is correct
2 Correct 86 ms 21528 KB Output is correct
3 Correct 47 ms 20476 KB Output is correct
4 Correct 10 ms 7436 KB Output is correct
5 Correct 9 ms 6328 KB Output is correct
6 Correct 17 ms 8852 KB Output is correct
7 Correct 3 ms 5004 KB Output is correct
8 Correct 30 ms 11984 KB Output is correct
9 Correct 53 ms 17060 KB Output is correct
10 Correct 3 ms 5068 KB Output is correct
11 Correct 62 ms 17212 KB Output is correct
12 Correct 73 ms 19728 KB Output is correct
13 Correct 3 ms 5196 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 5 ms 4984 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 3 ms 5004 KB Output is correct
21 Correct 3 ms 5008 KB Output is correct
22 Correct 4 ms 5004 KB Output is correct
23 Correct 3 ms 4996 KB Output is correct
24 Correct 3 ms 5000 KB Output is correct
25 Correct 4 ms 4940 KB Output is correct
26 Correct 4 ms 5004 KB Output is correct
27 Correct 3 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 4 ms 4940 KB Output is correct
30 Correct 3 ms 4940 KB Output is correct
31 Correct 3 ms 5004 KB Output is correct
32 Correct 3 ms 5000 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 3 ms 5004 KB Output is correct
35 Correct 3 ms 5004 KB Output is correct
36 Correct 3 ms 5004 KB Output is correct
37 Correct 3 ms 5004 KB Output is correct
38 Correct 3 ms 4940 KB Output is correct
39 Correct 66 ms 22288 KB Output is correct
40 Correct 65 ms 21440 KB Output is correct
41 Correct 45 ms 20420 KB Output is correct
42 Correct 13 ms 7452 KB Output is correct
43 Correct 4 ms 5004 KB Output is correct
44 Correct 3 ms 4940 KB Output is correct
45 Correct 3 ms 4940 KB Output is correct
46 Correct 3 ms 5000 KB Output is correct
47 Correct 3 ms 5000 KB Output is correct
48 Correct 3 ms 5036 KB Output is correct
49 Correct 3 ms 4940 KB Output is correct
50 Correct 3 ms 5004 KB Output is correct
51 Correct 3 ms 4940 KB Output is correct
52 Correct 3 ms 4940 KB Output is correct
53 Correct 3 ms 4952 KB Output is correct
54 Correct 3 ms 4940 KB Output is correct
55 Correct 3 ms 5032 KB Output is correct
56 Correct 3 ms 5000 KB Output is correct
57 Correct 83 ms 12804 KB Output is correct
58 Correct 107 ms 12904 KB Output is correct
59 Correct 95 ms 12924 KB Output is correct
60 Correct 85 ms 12820 KB Output is correct
61 Correct 89 ms 12784 KB Output is correct
62 Correct 88 ms 12852 KB Output is correct
63 Correct 119 ms 12556 KB Output is correct
64 Correct 83 ms 12564 KB Output is correct
65 Correct 93 ms 12860 KB Output is correct
66 Correct 84 ms 12792 KB Output is correct
67 Correct 84 ms 12924 KB Output is correct
68 Correct 109 ms 12936 KB Output is correct
69 Correct 88 ms 13144 KB Output is correct
70 Correct 86 ms 13140 KB Output is correct
71 Correct 3 ms 4940 KB Output is correct
72 Correct 4 ms 5196 KB Output is correct
73 Correct 5 ms 5196 KB Output is correct
74 Correct 5 ms 5180 KB Output is correct
75 Correct 4 ms 5272 KB Output is correct
76 Correct 5 ms 5196 KB Output is correct
77 Correct 4 ms 5196 KB Output is correct
78 Correct 5 ms 5260 KB Output is correct
79 Correct 5 ms 5196 KB Output is correct
80 Correct 95 ms 12816 KB Output is correct
81 Correct 89 ms 12936 KB Output is correct
82 Correct 78 ms 12872 KB Output is correct
83 Correct 122 ms 12944 KB Output is correct
84 Correct 4 ms 5196 KB Output is correct
85 Correct 4 ms 5144 KB Output is correct
86 Correct 4 ms 5196 KB Output is correct
87 Correct 4 ms 5176 KB Output is correct
88 Correct 4 ms 5196 KB Output is correct
89 Correct 5 ms 5144 KB Output is correct
90 Correct 5 ms 5196 KB Output is correct
91 Correct 6 ms 5180 KB Output is correct
92 Correct 4 ms 5196 KB Output is correct
93 Correct 4 ms 5196 KB Output is correct
94 Correct 3 ms 4940 KB Output is correct
95 Correct 3 ms 4940 KB Output is correct
96 Correct 3 ms 4940 KB Output is correct
97 Correct 3 ms 4940 KB Output is correct
98 Correct 3 ms 4940 KB Output is correct
99 Correct 3 ms 4940 KB Output is correct
100 Correct 3 ms 4940 KB Output is correct
101 Correct 3 ms 4940 KB Output is correct
102 Correct 3 ms 4940 KB Output is correct
103 Correct 3 ms 4940 KB Output is correct
104 Correct 9 ms 6220 KB Output is correct
105 Correct 17 ms 8848 KB Output is correct
106 Correct 3 ms 5040 KB Output is correct
107 Correct 45 ms 11992 KB Output is correct
108 Correct 49 ms 17024 KB Output is correct
109 Correct 3 ms 5068 KB Output is correct
110 Correct 60 ms 17216 KB Output is correct
111 Correct 72 ms 19732 KB Output is correct
112 Correct 3 ms 5080 KB Output is correct
113 Correct 142 ms 33860 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 54 ms 10436 KB Output is correct
2 Incorrect 34 ms 10904 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 5 ms 4984 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 5004 KB Output is correct
8 Correct 3 ms 5008 KB Output is correct
9 Correct 4 ms 5004 KB Output is correct
10 Correct 3 ms 4996 KB Output is correct
11 Correct 3 ms 5000 KB Output is correct
12 Correct 4 ms 4940 KB Output is correct
13 Correct 4 ms 5004 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 5004 KB Output is correct
19 Correct 3 ms 5000 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 3 ms 5004 KB Output is correct
22 Correct 3 ms 5004 KB Output is correct
23 Correct 3 ms 5004 KB Output is correct
24 Correct 3 ms 5004 KB Output is correct
25 Correct 3 ms 4940 KB Output is correct
26 Correct 3 ms 5100 KB Output is correct
27 Correct 4 ms 5068 KB Output is correct
28 Correct 5 ms 5148 KB Output is correct
29 Correct 3 ms 5068 KB Output is correct
30 Correct 4 ms 5068 KB Output is correct
31 Correct 7 ms 5144 KB Output is correct
32 Incorrect 3 ms 5068 KB Output isn't correct
33 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 62 ms 21060 KB Output is correct
2 Correct 86 ms 21528 KB Output is correct
3 Correct 47 ms 20476 KB Output is correct
4 Correct 10 ms 7436 KB Output is correct
5 Correct 9 ms 6328 KB Output is correct
6 Correct 17 ms 8852 KB Output is correct
7 Correct 3 ms 5004 KB Output is correct
8 Correct 30 ms 11984 KB Output is correct
9 Correct 53 ms 17060 KB Output is correct
10 Correct 3 ms 5068 KB Output is correct
11 Correct 62 ms 17212 KB Output is correct
12 Correct 73 ms 19728 KB Output is correct
13 Correct 3 ms 5196 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 5 ms 4984 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 3 ms 5004 KB Output is correct
21 Correct 3 ms 5008 KB Output is correct
22 Correct 4 ms 5004 KB Output is correct
23 Correct 3 ms 4996 KB Output is correct
24 Correct 3 ms 5000 KB Output is correct
25 Correct 4 ms 4940 KB Output is correct
26 Correct 4 ms 5004 KB Output is correct
27 Correct 3 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 4 ms 4940 KB Output is correct
30 Correct 3 ms 4940 KB Output is correct
31 Correct 3 ms 5004 KB Output is correct
32 Correct 3 ms 5000 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 3 ms 5004 KB Output is correct
35 Correct 3 ms 5004 KB Output is correct
36 Correct 3 ms 5004 KB Output is correct
37 Correct 3 ms 5004 KB Output is correct
38 Correct 3 ms 4940 KB Output is correct
39 Correct 66 ms 22288 KB Output is correct
40 Correct 65 ms 21440 KB Output is correct
41 Correct 45 ms 20420 KB Output is correct
42 Correct 13 ms 7452 KB Output is correct
43 Correct 4 ms 5004 KB Output is correct
44 Correct 3 ms 4940 KB Output is correct
45 Correct 3 ms 4940 KB Output is correct
46 Correct 3 ms 5000 KB Output is correct
47 Correct 3 ms 5000 KB Output is correct
48 Correct 3 ms 5036 KB Output is correct
49 Correct 3 ms 4940 KB Output is correct
50 Correct 3 ms 5004 KB Output is correct
51 Correct 3 ms 4940 KB Output is correct
52 Correct 3 ms 4940 KB Output is correct
53 Correct 3 ms 4952 KB Output is correct
54 Correct 3 ms 4940 KB Output is correct
55 Correct 3 ms 5032 KB Output is correct
56 Correct 3 ms 5000 KB Output is correct
57 Correct 83 ms 12804 KB Output is correct
58 Correct 107 ms 12904 KB Output is correct
59 Correct 95 ms 12924 KB Output is correct
60 Correct 85 ms 12820 KB Output is correct
61 Correct 89 ms 12784 KB Output is correct
62 Correct 88 ms 12852 KB Output is correct
63 Correct 119 ms 12556 KB Output is correct
64 Correct 83 ms 12564 KB Output is correct
65 Correct 93 ms 12860 KB Output is correct
66 Correct 84 ms 12792 KB Output is correct
67 Correct 84 ms 12924 KB Output is correct
68 Correct 109 ms 12936 KB Output is correct
69 Correct 88 ms 13144 KB Output is correct
70 Correct 86 ms 13140 KB Output is correct
71 Correct 3 ms 4940 KB Output is correct
72 Correct 4 ms 5196 KB Output is correct
73 Correct 5 ms 5196 KB Output is correct
74 Correct 5 ms 5180 KB Output is correct
75 Correct 4 ms 5272 KB Output is correct
76 Correct 5 ms 5196 KB Output is correct
77 Correct 4 ms 5196 KB Output is correct
78 Correct 5 ms 5260 KB Output is correct
79 Correct 5 ms 5196 KB Output is correct
80 Correct 95 ms 12816 KB Output is correct
81 Correct 89 ms 12936 KB Output is correct
82 Correct 78 ms 12872 KB Output is correct
83 Correct 122 ms 12944 KB Output is correct
84 Correct 4 ms 5196 KB Output is correct
85 Correct 4 ms 5144 KB Output is correct
86 Correct 4 ms 5196 KB Output is correct
87 Correct 4 ms 5176 KB Output is correct
88 Correct 4 ms 5196 KB Output is correct
89 Correct 5 ms 5144 KB Output is correct
90 Correct 5 ms 5196 KB Output is correct
91 Correct 6 ms 5180 KB Output is correct
92 Correct 4 ms 5196 KB Output is correct
93 Correct 4 ms 5196 KB Output is correct
94 Correct 3 ms 4940 KB Output is correct
95 Correct 3 ms 4940 KB Output is correct
96 Correct 3 ms 4940 KB Output is correct
97 Correct 3 ms 4940 KB Output is correct
98 Correct 3 ms 4940 KB Output is correct
99 Correct 3 ms 4940 KB Output is correct
100 Correct 3 ms 4940 KB Output is correct
101 Correct 3 ms 4940 KB Output is correct
102 Correct 3 ms 4940 KB Output is correct
103 Correct 3 ms 4940 KB Output is correct
104 Correct 9 ms 6220 KB Output is correct
105 Correct 17 ms 8848 KB Output is correct
106 Correct 3 ms 5040 KB Output is correct
107 Correct 45 ms 11992 KB Output is correct
108 Correct 49 ms 17024 KB Output is correct
109 Correct 3 ms 5068 KB Output is correct
110 Correct 60 ms 17216 KB Output is correct
111 Correct 72 ms 19732 KB Output is correct
112 Correct 3 ms 5080 KB Output is correct
113 Correct 142 ms 33860 KB Output is correct
114 Correct 54 ms 10436 KB Output is correct
115 Incorrect 34 ms 10904 KB Output isn't correct
116 Halted 0 ms 0 KB -