QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#532792#6660. 택시 여행orz_z0 355ms51304kbC++146.6kb2024-08-25 11:56:122024-08-25 11:56:12

Judging History

你现在查看的是最新测评结果

  • [2024-08-25 11:56:12]
  • 评测
  • 测评结果:0
  • 用时:355ms
  • 内存:51304kb
  • [2024-08-25 11:56:12]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
//#define int long long
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef double db;
#define F(i, a, b) for(int i = a; i <= (b); ++i)
#define F2(i, a, b) for(int i = a; i < (b); ++i)
#define dF(i, a, b) for(int i = a; i >= (b); --i)
template<typename T> void debug(string s, T x) {cerr << "[" << s << "] = [" << x << "]\n";}
template<typename T, typename... Args> void debug(string s, T x, Args... args) {for (int i = 0, b = 0; i < (int)s.size(); i++) if (s[i] == '(' || s[i] == '{') b++;else if (s[i] == ')' || s[i] == '}') b--;else if (s[i] == ',' && b == 0) {cerr << "[" << s.substr(0, i) << "] = [" << x << "] | ";debug(s.substr(s.find_first_not_of(' ', i + 1)), args...);break;}}
#ifdef ONLINE_JUDGE
#define Debug(...)
#else
#define Debug(...) debug(#__VA_ARGS__, __VA_ARGS__)
#endif
#define pb push_back
#define fi first
#define se second
#define Mry fprintf(stderr, "%.3lf MB\n", (&Med - &Mbe) / 1048576.0)
#define Try cerr << 1e3 * clock() / CLOCKS_PER_SEC << " ms\n";
typedef long long ll;
// namespace Fread {const int SIZE = 1 << 17; char buf[SIZE], *S, *T; inline char getchar() {if (S == T) {T = (S = buf) + fread(buf, 1, SIZE, stdin); if (S == T) return '\n';} return *S++;}}
// namespace Fwrite {const int SIZE = 1 << 17; char buf[SIZE], *S = buf, *T = buf + SIZE; inline void flush() {fwrite(buf, 1, S - buf, stdout), S = buf;} inline void putchar(char c) {*S++ = c;if (S == T) flush();} struct NTR {~NTR() {flush();}} ztr;}
// #ifdef ONLINE_JUDGE
// #define getchar Fread::getchar
// #define putchar Fwrite::putchar
// #endif
inline int ri() {
	int x = 0;
	bool t = 0;
	char c = getchar();
	while (c < '0' || c > '9') t |= c == '-', c = getchar();
	while (c >= '0' && c <= '9') x = (x << 3) + (x << 1) + (c ^ 48), c = getchar();
	return t ? -x : x;
}
inline void wi(int x) {
	if (x < 0) {
		putchar('-'), x = -x;
	}
	if (x > 9) wi(x / 10);
	putchar(x % 10 + 48);
}
inline void wi(int x, char s) {
	wi(x), putchar(s);
}
bool Mbe;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
const int mod = 998244353;
const ll inf = 0x3f3f3f3f3f3f3f3f;
const int _ = 2e5 + 5;


bool Med;

int n, tot, head[_], to[_ << 1], nxt[_ << 1], w[_ << 1];

void add(int u, int v, int c) {
	to[++tot] = v, nxt[tot] = head[u], head[u] = tot, w[tot] = c;
}

namespace Dis {
	int dfn[_], cnt, Fa[_], st[_][20];
	ll dep[_];
	void dfs(int u, int fa) {
		dfn[u] = ++cnt;
		Fa[u] = fa;
		st[dfn[u]][0] = u;
		for(int i = head[u], v = to[i]; i; i = nxt[i], v = to[i]) if(v != fa) {
			dep[v] = dep[u] + w[i];
			dfs(v, u);
		}
	}
	int get(int x, int y) {
		return dfn[Fa[x]] < dfn[Fa[y]] ? x : y;
	}
	int lg[_];
	int LCA(int u, int v) {
		if(u == v) return u;
		u = dfn[u], v = dfn[v];
		if(u > v) swap(u, v);
		u++;
		int t = lg[v - u + 1];
		return Fa[get(st[u][t], st[v - (1 << t) + 1][t])];
	}
	ll Dis(int u, int v) {
//		Debug(u, v, LCA(u, v));
		return dep[u] + dep[v] - (dep[LCA(u, v)] << 1);
	}
	void init() {
		F(i, 2, n) lg[i] = lg[i >> 1] + 1;
		dfs(1, 0);
		F(j, 1, lg[n]) {
			F(i, 1, n - (1 << j) + 1) st[i][j] = get(st[i][j - 1], st[i + (1 << (j - 1))][j - 1]);
		}
	}
}

ll f[_];

int Sum, rt, sz[_]; bool vis[_];
void get_rt(int u, int fa) {
	int mx = 0;
	for(int i = head[u], v = to[i]; i; i = nxt[i], v = to[i]) if(v != fa &&!vis[v]) {
		get_rt(v, u);
		mx = max(mx, sz[v]);
	}
	mx = max(mx, Sum - sz[u]);
	if(mx <= Sum / 2) {
		rt = u;
	}
}
void get_sz(int u, int fa) {
	sz[u] = 1;
	for(int i = head[u], v = to[i]; i; i = nxt[i], v = to[i]) if(v != fa && !vis[v]) {
		get_sz(v, u);
		sz[u] += sz[v];
	}
}
int Fa[_];
void work(int u) {
//	Debug(u);
	vis[u] = 1;
	for(int i = head[u], v = to[i]; i; i = nxt[i], v = to[i]) if(!vis[v]) {
		get_sz(v, u);
		Sum = sz[v];
		get_rt(v, u);
		Fa[rt] = u;
		work(rt);
	}
}
pair<ll, ll> operator - (pair<ll, ll> a, pair<ll, ll> b) {
	return make_pair(a.fi - b.fi, a.se - b.se);
}
struct Tubao {
	vector<pair<ll, ll>> a;
	void ins(ll x, ll y) {
		if(a.empty()) {
			a.pb({x, y});
			return;
		}
		while(a.size() > 1 && 1ll * (a.back().se - a[(int)a.size() - 2].se) * (x - a.back().fi) > 1ll * (a.back().fi - a[(int)a.size() - 2].fi) * (y - a.back().se)) a.pop_back();
		a.pb({x, y});
	}
	ll qry(ll x) {
		if(a.empty()) {
			return inf;
		}
//		Debug(a.size());
//		ll res = inf;
//		for(pair<ll, ll> v : a) res = min(res, v.fi * (x) + v.se);
//		return res;
		if((int)a.size() == 1) {
			return a.front().fi * x + a.front().se;
		}
		int l = 1, r = (int)a.size() - 1, mid, res = 0;
//		F(i, 0, r) Debug(i, 1.0 * (a[i].se - a[i - 1].se) / (a[i].fi - a[i - 1].fi), a[i].fi * x + a[i].se);
		while(l <= r) {
			mid = (l + r) >> 1;
			if((a[mid].se - a[mid - 1].se) <= (a[mid].fi - a[mid - 1].fi) * (-x)) {
				l = mid + 1;
				res = mid;
			} else {
				r = mid - 1;
			}
		}
		ll ans = min(inf, a[res].fi * x + a[res].se);
//		Debug(res, ans);
		l = 1, r = (int)a.size() - 1, res = 0;
		while(l <= r) {
			mid = (l + r) >> 1;
			if((a[mid].se - a[mid - 1].se) < (a[mid].fi - a[mid - 1].fi) * (-x)) {
				l = mid + 1;
				res = mid;
			} else {
				r = mid - 1;
			}
		}
		ans = min(ans, a[res].fi * x + a[res].se);
		return ans;
	}
} d[_];
ll a[_], b[_];
void ins(int u) {
	for(int nw = u; nw; nw = Fa[nw]) {
		d[nw].ins(a[u], f[u] + a[u] * Dis::Dis(u, nw) + b[u]);
	}
}
ll qry(int u) {
	ll res = inf;
	for(int nw = u; nw; nw = Fa[nw]) {
		res = min(res, d[nw].qry(Dis::Dis(u, nw)));
	}
	return res;
}

int p[_];

vector<long long> travel(vector<long long> A, vector<int> B, vector<int> U, vector<int> V, vector<int> W) {
	n = A.size();
	F(i, 1, n) a[i] = B[i - 1], b[i] = A[i - 1];
	F(i, 0, n - 2) {
		U[i]++, V[i]++;
		add(U[i], V[i], W[i]);
		add(V[i], U[i], W[i]);
	}
	Dis::init();
//	Debug("Yes");
	f[1] = 0;
	F(i, 2, n) f[i] = a[1] * Dis::Dis(1, i) + b[1];
//	Debug("2");
	Sum = n;
	get_sz(1, 0);
	get_rt(1, 0);
	work(rt);
//	Debug("done");
	F(i, 1, n) p[i] = i;
	sort(p + 1, p + n + 1, [&](int a1, int b1) { return a[a1] > a[b1]; });
//	F(i, 2, n) Debug(i, f[i], Dis::Dis(1, i));
	F(i, 1, n) {
		if(p[i] == 1) {
			ins(1);
			continue;
		}
//		Debug(p[i], f[p[i]], qry(p[i]));
		f[p[i]] = qry(p[i]);
		ins(p[i]);
//		Debug(qry(p[i]));
	}
//	F(i, 1, n) {
//		Debug("222333333", i, (ll)qry(i));
//	}
	vector<ll> f2;
	F(i, 2, n) f2.pb(qry(i));
	return f2;
}

//signed main() {
	// Mry;
//	travel({10, 5, 13, 4, 3}, {10, 7, 5, 9, 1}, {1, 0, 3, 2}, {0, 2, 2, 4}, {1, 5, 10, 3});
//	travel({251115773325 ,363097865287, 358609487841}, {826785, 213106 ,914768},{0,2},{1,0},{851938,231697});
	// Try;
//	return 0;
//}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 7
Accepted
time: 0ms
memory: 20296kb

input:

2
684124582850 713748627948
74361 256955
0 1 661088

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
733283747618
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 3 lines

Test #2:

score: 7
Accepted
time: 4ms
memory: 22532kb

input:

3
251115773325 363097865287 358609487841
826785 213106 914768
0 1 851938
2 0 231697

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
955485332655
442679377470
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 4 lines

Test #3:

score: 7
Accepted
time: 2ms
memory: 20228kb

input:

3
489998888627 318672977903 70353752652
258347 458793 258657
2 1 156120
0 2 524840

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
665922861747
625589728107
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 4 lines

Test #4:

score: 7
Accepted
time: 0ms
memory: 22328kb

input:

3
737471938521 315388610250 818943569900
726908 666797 564862
0 1 460302
0 2 785280

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
1072069144737
1308298252761
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

ok 4 lines

Test #5:

score: 0
Wrong Answer
time: 0ms
memory: 24304kb

input:

4
201836820267 208957719162 992553400562 566050337171
243994 65303 590123 936951
1 0 259719
0 3 860376
3 2 513584

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
474164417115
580848556852
547309980900
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I

result:

wrong answer 2nd lines differ - expected: '265206697953', found: '474164417115'

Subtask #2:

score: 0
Wrong Answer

Test #31:

score: 0
Wrong Answer
time: 355ms
memory: 51304kb

input:

100000
746699125678 374834842799 250803643493 620187038832 454433387570 406226564003 897157438699 99473514061 734784419618 503968957100 363935477037 277126009840 52078020050 990757079812 847235285349 950784717285 271017141367 861087225700 996035427219 520682200664 282013988419 415183977876 882007771...

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
1148030742334
1636760433058
3644913768745
3156063471257
3078933683340
3687624839989
3750764568985
3806437685557
3856568656377
3920257774665
3971527884483
4276509015265
4310713157578
4313076716941
4321812997978
4351932510181
4367985991801
4369718654656
438028132...

result:

wrong answer 4th lines differ - expected: '2131282232650', found: '3644913768745'

Subtask #3:

score: 0
Skipped

Dependency #1:

0%

Subtask #4:

score: 0
Wrong Answer

Test #69:

score: 0
Wrong Answer
time: 176ms
memory: 43708kb

input:

100000
15175010 23519365 21177669 27079342 9089 16784452 29693960 23124925 17048604 10179491 12828214 24992902 8483134 2928073 23807522 7332137 17421520 28460746 1607282 13224363 11900728 11794692 11495061 4687109 23460275 7657982 27417256 16978162 7326803 23083826 24942987 16610314 12147303 2828271...

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4557430888798830399
4...

result:

wrong answer 2nd lines differ - expected: '16705757', found: '4557430888798830399'

Subtask #5:

score: 0
Wrong Answer

Test #94:

score: 0
Wrong Answer
time: 159ms
memory: 45772kb

input:

99281
551670361798 568902251563 418071776626 697635341894 641578820039 117221079324 812766431051 425410617978 663769685693 282144284527 799662290178 749088952784 586626406385 122473825417 459510657357 871705247919 443707710712 735612808044 237919555727 829939639783 122127143240 616906466299 24431898...

output:

secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
1901058316195
1631339908028
1866209267365
1505398615208
1901058316195
1712309339303
1901058316195
1709044252571
1901058316195
1864629243666
1901058316195
1891117587312
1610283778582
1693128958249
1901058316195
1744006527028
1495353771455
1892546659702
179744064...

result:

wrong answer 2nd lines differ - expected: '598598746654', found: '1901058316195'

Subtask #6:

score: 0
Skipped

Dependency #1:

0%