oj.uz

답안 #108767

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
108767 2019-05-01T17:32:56 Z Jatana Election Campaign (JOI15_election_campaign) C++17
100 / 100
 549 ms 39724 KB 
/*
                                                                                                     
                                             `-:://:::-                                             
                                           `//:-------:/:`                                          
                                          .+:--.......--:+`                                         
                                         `+:--..`````..--//`                                        
                                         .o:--..`` ``..--:o`                                        
                                         .o:--...```..---+/`                                        
                                       `/y+o/---....---:+o.                                         
                                   `...````-os+/:---:/+o/--.`                                       
              `-/+++++/:.      `...`       :h+d+oooo+/+-`   ...                                     
            `/++//:::://++-`....`         -.`//````````:`     `..`                                  
           `o+/::------://o/`           `-` -.          -`       `..`                               
 `---.-o/:./o/::-..``..-ЗАПУСКАЕМ      ..  ..            -`        `...       ``..``                
  `....o+:-++/:--.```..-://s.        `-`  .-              -`          `-o: .-//::::/:-`             
          `:s+/:--....-::/+s-`      .-   `-                -`           -///:--------:/:`           
           ./s+//:::::://oo-``..НЕЙРОННУЮ: СЕТЬ:::::::-`РАБОТЯГИ        `+:--........--:/`          
            .:ooo+++++osso-`    `.:-...`/` ./::-------:/:`   -`         :+--..``````.--:+:...-+:-`  
             `.-/+++++/+-.-`    -.   ``:so:/:--.......--:+`  `-```````o+/+--..`````..--:o/-..:s+:.  
                 ```````:``.. `-`     -` `+:--..`````..--/+-.../.`````..-o:--.......---/o.    `     
                        `:  `:-      -.  .o:--..`` ``..--:o`   `-`      `:o+:--------:+o-`          
                         `-`-...    ..   .o/--...```..--:+/`    `-`     `oy/so/////++o/.`           
                          -/`  `-` `- ``+s/o/:---...---:++.      `-`   .-../d://///:-.`             
                `.---..``-..-    .-/..`````-oo+/:::::/+o+-        `-``-`  `-.  ````                 
             `:++++/+++++-  ..``.-/:`      /y-:/++o++/:.`..`       ./.   `-                         
            -++/::::::://+/..:-``:` ..   `-.`  ```.```    `..`   `..`-` `-                          
       ``  -o//:--....-::/++` -.-`   `-`.-`                 `..`..`  `-.-                           
  -----ss+:++/:--.```..-://s.  /.     `::                    `-:.     ./`                           
  `````/:..+o/::-..``.--:/+s. ..-`   `-``-`                 ..` `-`  `-`-`                          
          `-s+/::-----::/+oo---``-` ..    .:-    ```      .-`     .-.-  `-`                         
           `:oo+//::://+os/..:`..-/:`      :y.-:::::::.`.-`        ./-`  `-`                        
            `./+oooooooo+/.`-    .-:...`.. .//:-------://`        `- `..` `:.                       
              ``.-::::-.``-/`  `-` `-  `oo:+:--.......--:/`      `-    `.:--h.``..```               
                          -.-`.-    .-   `+:--..`````..--//`    `-       /s-//::::::::.             
                         -` `/-      ..  .o:--..`` ``..--:o.```.-        `//:--------://`           
                        -` .-`.-`     -.`-o/--...```..--:+/.``-:....``:-.+:--....`...--:+`          
                       ..`-.   `-.   ``:os:o/:---...---:++.  `-     ``///+:-..``````.--:+-````-.`   
              `.:///////.-`      .:-..` -``-+o+/:::::/+o/.  `-         `:+:-..`````..--:o/:--/ys+-  
            `-++///////+o/. ``....`-.    :` `.:++++++/:.`  .-           -o/---......---/o.   `.`    
           `++//:-----::/+o:..`     .-`   :    ```````    .-           `+so+:--------:++-`          
  `````:-``:o/::-..`..--:/+o`         -.  `-             .-          `../../+o+////+o+:.`           
  -----syo/o+/:--.```..-://s.          .-` `-           .-        `...     ``-:////:-``             
       .` `/s//:--....-::/+s.            -. `-`        .-       `..`                                
           .+o+/:::--:://+s/-..`          .::+y  ```  .-     `..`                                   
            ./oo++////+oso-`   `....       :y-+:::::::/`   ...                                      
             `.:+oooooo/-`         `....-. .//:-------:/:-.`                                        
                ``...``                 /+:+:--.......--:+`                                         
                                         `+:--..`````..--//`                                        
                                         .o:--..`` ``..--:o`                                        
                                         .+/--...```..--:+/`                                        
                                         `-o/:---...---:++.                                         
                                          `-+o+/:---:/+o/.                                          
                                            `.:+oooo+/-.`                                           
                                               ``````                                               
*/

#ifdef aimbot
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")
#endif

#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <map>
#include <set>
#include <queue>
#include <ostream>
#include <istream>
#include <typeinfo>
#include <iomanip>
#include <cstdio>
#include <cstdlib>
#include <cassert>
#include <limits>
#include <fstream>
#include <array>
#include <list>
#include <bitset>
#include <functional>
#include <random>
#include <cstring>
#include <chrono>

#define random escape__from__random__aetuhoetnuhshe
#define mt make_tuple
#define x first
#define y second
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define umap unordered_map
#define uset unordered_set
#define elif else if
#define len(v) ((int)v.size())
#define f(i, n) for (int i = 0; i < (n); i++)
#define rof(i, n) for (int i = ((n) - 1); i >= 0; i--)
#define apply(v, act) for (auto &x : v) { act; }
#define log(args...) {string s = #args;deque<string> deq;\
string buf = "";int bal = 0;for (char c : s) {\
if (c == '(' || c == '[' || c == '{') {bal++;\
} else if (c == ')' || c == ']' || c == '}') {\
bal--;} else {if (bal == 0) {if (c == ',') {\
deq.pb(buf);buf = "";} else {if (c != ' ') {\
buf += c;}}}}}if (!buf.empty()) {deq.pb(buf);}\
smart_io::precall_print();smart_io::_print(deq, args);}

inline int min(const int &x, const int &y) { return (((y-x)>>(32-1))&(x^y))^x; }
inline int max(const int &x, const int &y) { return (((y-x)>>(32-1))&(x^y))^y; }
inline long long min(const long long &x, const long long &y) { return (((y-x)>>(64-1))&(x^y))^x; }
inline long long max(const long long &x, const long long &y) { return (((y-x)>>(64-1))&(x^y))^y; }

#define print    \
smart_io::precall_print(); \
cout,

#define scan cin,

#ifdef fast_allocator
const int MAXMEM = 200 * 1000 * 1024;
char _memory[MAXMEM];
size_t _ptr = 0;
void* operator new(size_t _x) { _ptr += _x; assert(_ptr < MAXMEM); return _memory + _ptr - _x; }
void operator delete (void*) noexcept {}
#endif

using namespace std;

char string_in_buffer[(int)260];


void fast_scan(int &x) { scanf("%d", &x); }
void fast_scan(long long &x) { scanf("%lld", &x); }
void fast_scan(unsigned long long &x) { scanf("%llu", &x); }
void fast_scan(double &x) { scanf("%lf", &x); }
void fast_scan(long double &x) { scanf("%Lf", &x); }
void fast_scan(char &x) {
	scanf("%c", &x);
	if (x == '\n') {
		fast_scan(x);
	}
}
void fast_scan(string &x) {
	scanf("%s", string_in_buffer);
	x = string(string_in_buffer);
}

template<class TFirst, class TSecond>
void fast_scan(pair<TFirst, TSecond> &p) {
	fast_scan(p.first);
	fast_scan(p.second);
}

template <class T>
void fast_scan(vector<T> &v) {
	for (auto &x : v) fast_scan(x);
}

void fast_print(const int &x) { printf("%d", x); }
void fast_print(const unsigned int &x) { printf("%u", x); }
void fast_print(const long long &x) { printf("%lld", x); }
void fast_print(const unsigned long long &x) { printf("%llu", x); }
void fast_print(const double &x) { printf("%.15lf", x); }
void fast_print(const long double &x) { printf("%.15Lf", x); }
void fast_print(const char &x) { printf("%c", x); };
void fast_print(const string &x) { printf("%s", x.c_str());}
void fast_print(const char v[]) { fast_print((string)v); }

template<class TFirst, class TSecond>
void fast_print(const pair<TFirst, TSecond> &p) {
	fast_print(p.first);
	fast_print(' ');
	fast_print(p.second);
}

template <class T>
void fast_print(const vector<T> &v) {
	if (v.empty()) return;
	fast_print(v[0]);
	for (int i = 1; i < v.size(); i++) {
		fast_print(' ');
		fast_print(v[i]);
	}
}

template <class T>
void fast_print(const vector<vector<T>> &v) {
	if (v.empty()) return;
	fast_print(v[0]);
	for (int i = 1; i < v.size(); i++) {
		fast_print('\n');
		fast_print(v[i]);
	}
}

template <class T>
void fast_print(const T &v) {
	for (const auto &x : v) {
		fast_print(x);
		fast_print(' ');
	}
}


using namespace std;


namespace smart_io {
	string print_start = "";
	string sep = " ";
	bool first_print = false;
	
	void precall_print() {
		fast_print(print_start);
		print_start = "\n";
		first_print = true;
	}
	
	void _print(deque<string>) {}
	template<class T, class... Args>
	void _print(deque<string> names, T elem, Args... args) {
		if (!first_print) {
			fast_print("\n");
		} else {
			first_print = false;
		}
		fast_print(names.front());
		fast_print(" = ");
		fast_print(elem);
		names.pop_front();
		_print(names, args...);
	}
} //namespace smart_io


template <class T>
ostream &operator,(ostream &os, const T &object) {
	if (!smart_io::first_print) {
		fast_print(smart_io::sep);
	} else {
		smart_io::first_print = false;
	}
	fast_print(object);
	return os;
}

template <class T>
istream &operator,(istream &is, T &object) {
	fast_scan(object);
	return is;
}

namespace random {
	using namespace std::chrono;
	mt19937 rng(duration_cast< milliseconds >(
											  system_clock::now().time_since_epoch()
											  ).count());
	uniform_real_distribution<> prob_dist(0.0, 1.0);
};

namespace typedefs {
	typedef long long ll;
	typedef unsigned long long ull;
	typedef pair<int, int> pii;
	typedef long double ld;
}

namespace numbers_operation {
	template<class T>
	T floor_mod(T a, T b) {
		if (a >= 0 && b >= 0) return a % b;
		if (a <= 0 && b <= 0) return a % b;
		return abs(b) - (abs(a) % abs(b));
	}
}

using namespace numbers_operation;
using namespace typedefs;
using namespace random;

vector<vector<int>> g;
vector<vector<int>> plans;
vector<int> cost;
vector<int> tsize;

void dfs(int v, int _p) {
	tsize[v] = 1;
	for (int sub : g[v]) {
		if (sub == _p) continue;
		dfs(sub, v);
		tsize[v] += tsize[sub];
	}
}

struct Carry {
	ll mod = 0;
	unordered_map<int, ll> elems;
	ll get(int key) {
		return elems[key] + mod;
	}
	void add(int key, ll value) {
		elems[key] = value - mod;
	}
};

vector<ll> mem;

void dp(int v, int _p, Carry &base) {
	int _max = -1;
	for (int sub : g[v]) {
		if (sub == _p) continue;
		if (_max == -1 || tsize[sub] > tsize[_max])
			_max = sub;
	}
	if (_max != -1) {
		dp(_max, v, base);
	}
	vector<pair<Carry, int>> carries;
	for (int sub : g[v]) {
		if (sub == _p || sub == _max) continue;
		carries.emplace_back(Carry(), sub);
		dp(sub, v, carries.back().x);
	}
	ll all = 0;
	for (int sub : g[v]) {
		if (sub == _p) continue;
		all += mem[sub];
	}
	mem[v] = all;
	if (_max != -1) 
		base.mod += all - mem[_max];
	for (int plan : plans[v]) {
		if (base.elems.count(plan)) {
			mem[v] = max(mem[v], base.get(plan) + cost[plan]);
			base.elems.erase(plan);
		} else {
			base.add(plan, all);
		}
	}

	for (auto t : carries) {
		t.x.mod += all - mem[t.y];
		for (auto p : t.x.elems) {
			if (base.elems.count(p.x)) {
				mem[v] = max(mem[v], base.get(p.x) + t.x.get(p.x) - all + cost[p.x]);
				base.elems.erase(p.x);
			} else {
				base.add(p.x, t.x.get(p.x));
			}
		}
	}
}

signed main(signed argc, char *argv[]) {
	int n;
	scan n;
	mem.resize(n);
	tsize.resize(n);
	g.resize(n);
	plans.resize(n);
	f(i, n - 1) {
		int a, b;
		scan a, b;
		a--;b--;
		g[a].pb(b);
		g[b].pb(a);
	}
	int m;
	scan m;
	cost.resize(m);
	f(i, m) {
		int a, b, c;
		scan a, b, c;
		a--;b--;
		cost[i] = c;
		plans[a].pb(i);
		plans[b].pb(i);
	}

	dfs(0, -1);
	Carry base;
	dp(0, -1, base);
	print mem[0];
}

Compilation message

election_campaign.cpp: In function 'void fast_scan(int&)':
election_campaign.cpp:138:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 void fast_scan(int &x) { scanf("%d", &x); }
                          ~~~~~^~~~~~~~~~
election_campaign.cpp: In function 'void fast_scan(long long int&)':
election_campaign.cpp:139:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 void fast_scan(long long &x) { scanf("%lld", &x); }
                                ~~~~~^~~~~~~~~~~~
election_campaign.cpp: In function 'void fast_scan(long long unsigned int&)':
election_campaign.cpp:140:46: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 void fast_scan(unsigned long long &x) { scanf("%llu", &x); }
                                         ~~~~~^~~~~~~~~~~~
election_campaign.cpp: In function 'void fast_scan(double&)':
election_campaign.cpp:141:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 void fast_scan(double &x) { scanf("%lf", &x); }
                             ~~~~~^~~~~~~~~~~
election_campaign.cpp: In function 'void fast_scan(long double&)':
election_campaign.cpp:142:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 void fast_scan(long double &x) { scanf("%Lf", &x); }
                                  ~~~~~^~~~~~~~~~~
election_campaign.cpp: In function 'void fast_scan(char&)':
election_campaign.cpp:144:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%c", &x);
  ~~~~~^~~~~~~~~~
election_campaign.cpp: In function 'void fast_scan(std::__cxx11::string&)':
election_campaign.cpp:150:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", string_in_buffer);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 356 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 145 ms 10616 KB Output is correct
6 Correct 66 ms 34036 KB Output is correct
7 Correct 154 ms 25940 KB Output is correct
8 Correct 100 ms 12948 KB Output is correct
9 Correct 99 ms 21176 KB Output is correct
10 Correct 114 ms 12900 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 4 ms 640 KB Output is correct
4 Correct 212 ms 39336 KB Output is correct
5 Correct 184 ms 39340 KB Output is correct
6 Correct 156 ms 38136 KB Output is correct
7 Correct 197 ms 39336 KB Output is correct
8 Correct 191 ms 39340 KB Output is correct
9 Correct 181 ms 38008 KB Output is correct
10 Correct 222 ms 39208 KB Output is correct

Subtask #3
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 4 ms 640 KB Output is correct
4 Correct 212 ms 39336 KB Output is correct
5 Correct 184 ms 39340 KB Output is correct
6 Correct 156 ms 38136 KB Output is correct
7 Correct 197 ms 39336 KB Output is correct
8 Correct 191 ms 39340 KB Output is correct
9 Correct 181 ms 38008 KB Output is correct
10 Correct 222 ms 39208 KB Output is correct
11 Correct 28 ms 1784 KB Output is correct
12 Correct 231 ms 39592 KB Output is correct
13 Correct 202 ms 39584 KB Output is correct
14 Correct 161 ms 38464 KB Output is correct
15 Correct 199 ms 39724 KB Output is correct
16 Correct 173 ms 38264 KB Output is correct
17 Correct 198 ms 39592 KB Output is correct
18 Correct 173 ms 39592 KB Output is correct
19 Correct 169 ms 38496 KB Output is correct
20 Correct 176 ms 39608 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 510 ms 21160 KB Output is correct
2 Correct 190 ms 38008 KB Output is correct
3 Correct 337 ms 30908 KB Output is correct
4 Correct 436 ms 22396 KB Output is correct
5 Correct 314 ms 28536 KB Output is correct
6 Correct 413 ms 21732 KB Output is correct
7 Correct 313 ms 30624 KB Output is correct
8 Correct 387 ms 16752 KB Output is correct
9 Correct 188 ms 38236 KB Output is correct
10 Correct 264 ms 29668 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 356 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 145 ms 10616 KB Output is correct
6 Correct 66 ms 34036 KB Output is correct
7 Correct 154 ms 25940 KB Output is correct
8 Correct 100 ms 12948 KB Output is correct
9 Correct 99 ms 21176 KB Output is correct
10 Correct 114 ms 12900 KB Output is correct
11 Correct 5 ms 512 KB Output is correct
12 Correct 5 ms 768 KB Output is correct
13 Correct 3 ms 640 KB Output is correct
14 Correct 5 ms 640 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 4 ms 640 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 4 ms 640 KB Output is correct
19 Correct 4 ms 512 KB Output is correct
20 Correct 4 ms 640 KB Output is correct

Subtask #6
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 356 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 145 ms 10616 KB Output is correct
6 Correct 66 ms 34036 KB Output is correct
7 Correct 154 ms 25940 KB Output is correct
8 Correct 100 ms 12948 KB Output is correct
9 Correct 99 ms 21176 KB Output is correct
10 Correct 114 ms 12900 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 4 ms 640 KB Output is correct
14 Correct 212 ms 39336 KB Output is correct
15 Correct 184 ms 39340 KB Output is correct
16 Correct 156 ms 38136 KB Output is correct
17 Correct 197 ms 39336 KB Output is correct
18 Correct 191 ms 39340 KB Output is correct
19 Correct 181 ms 38008 KB Output is correct
20 Correct 222 ms 39208 KB Output is correct
21 Correct 28 ms 1784 KB Output is correct
22 Correct 231 ms 39592 KB Output is correct
23 Correct 202 ms 39584 KB Output is correct
24 Correct 161 ms 38464 KB Output is correct
25 Correct 199 ms 39724 KB Output is correct
26 Correct 173 ms 38264 KB Output is correct
27 Correct 198 ms 39592 KB Output is correct
28 Correct 173 ms 39592 KB Output is correct
29 Correct 169 ms 38496 KB Output is correct
30 Correct 176 ms 39608 KB Output is correct
31 Correct 510 ms 21160 KB Output is correct
32 Correct 190 ms 38008 KB Output is correct
33 Correct 337 ms 30908 KB Output is correct
34 Correct 436 ms 22396 KB Output is correct
35 Correct 314 ms 28536 KB Output is correct
36 Correct 413 ms 21732 KB Output is correct
37 Correct 313 ms 30624 KB Output is correct
38 Correct 387 ms 16752 KB Output is correct
39 Correct 188 ms 38236 KB Output is correct
40 Correct 264 ms 29668 KB Output is correct
41 Correct 5 ms 512 KB Output is correct
42 Correct 5 ms 768 KB Output is correct
43 Correct 3 ms 640 KB Output is correct
44 Correct 5 ms 640 KB Output is correct
45 Correct 5 ms 512 KB Output is correct
46 Correct 4 ms 640 KB Output is correct
47 Correct 4 ms 512 KB Output is correct
48 Correct 4 ms 640 KB Output is correct
49 Correct 4 ms 512 KB Output is correct
50 Correct 4 ms 640 KB Output is correct
51 Correct 301 ms 17220 KB Output is correct
52 Correct 234 ms 39592 KB Output is correct
53 Correct 295 ms 30120 KB Output is correct
54 Correct 339 ms 19252 KB Output is correct
55 Correct 549 ms 20812 KB Output is correct
56 Correct 185 ms 39564 KB Output is correct
57 Correct 295 ms 27768 KB Output is correct
58 Correct 334 ms 22244 KB Output is correct
59 Correct 303 ms 17144 KB Output is correct
60 Correct 182 ms 39720 KB Output is correct
61 Correct 260 ms 28060 KB Output is correct
62 Correct 368 ms 22056 KB Output is correct
63 Correct 539 ms 20972 KB Output is correct
64 Correct 219 ms 39592 KB Output is correct
65 Correct 277 ms 30732 KB Output is correct
66 Correct 240 ms 19004 KB Output is correct
67 Correct 491 ms 20568 KB Output is correct
68 Correct 167 ms 39592 KB Output is correct
69 Correct 262 ms 24988 KB Output is correct
70 Correct 384 ms 20400 KB Output is correct