oj.uz

답안 #46658

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
46658 2018-04-22T13:50:16 Z Jatana The Kingdom of JOIOI (JOI17_joioi) C++17
100 / 100
 3427 ms 167368 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+/-.`                                           
                                               ``````                                               
*/
// #define aimbot
#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>

#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 fuck(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);}

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

#define scan cin,

#ifdef fast_allocator
const int MAXMEM = 50000000;
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 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 kek, Args... args) {
		if (!first_print) {
			fast_print("\n");
		} else {
			first_print = false;
		}
		fast_print(names.front());
		fast_print(" = ");
		fast_print(kek);
		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 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 % b == 0) return 0;
		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;

const int N = 2000;
int v[N][N];
int rez[N][N];
int pr_min[N][N];
int pr_max[N][N];
pii all[N * N];


int solve(int n, int m) {
	f(i, n) {
		rof(j, m) {
			pr_min[i][j] = pr_max[i][j] = v[i][j];
			if (i > 0) {
				pr_min[i][j] = min(pr_min[i][j], pr_min[i - 1][j]);
				pr_max[i][j] = max(pr_max[i][j], pr_max[i - 1][j]);
			}
			if (j < m - 1) {
				pr_min[i][j] = min(pr_min[i][j], pr_min[i][j + 1]);
				pr_max[i][j] = max(pr_max[i][j], pr_max[i][j + 1]);
			}
		}
	}

	int left = 2e9, right = -2e9;
	int rez = 2e9;
	rof(i, n * m) {
		left = min(left, pr_min[all[i].x][all[i].y]);
		right = max(right, pr_max[all[i].x][all[i].y]);
		int d = (i == 0) ? 0 : v[all[i - 1].x][all[i - 1].y] - v[all[0].x][all[0].y];
		rez = min(rez, max(right - left, d));
	}
	return rez;
}

void rotate(int n, int m) {
	f(i, n) {
		f(j, m) {
			rez[m - j - 1][i] = v[i][j];
		}
	}
	f(i, n) {
		f(j, m) {
			v[j][i] = rez[j][i];
		}
	}
	f(i, n * m) {
		pii &p = all[i];
		tie(p.x, p.y) = mp(m - p.y - 1, p.x);
	}
}

signed main(signed argc, char *argv[]) {
	int n, m;
	{
		scan n, m;
		f(i, n) {
			f(j, m) {
				scan v[i][j];
			}
		}	
	}	
	{
		int it = 0;
		f(i, n) {
			f(j, m) {
				all[it++] = mp(i, j);	
			}
		}
		sort(all, all + n * m, [](const pii &a, const pii &b) {
			return v[a.x][a.y] < v[b.x][b.y];
		});
	}
	{
		int rez = 2e9;
		f(t, 4) {
			rez = min(rez, solve(n, m));
			rotate(n, m);
			swap(n, m);
		}
		print rez;
	}
}

Compilation message

joioi.cpp: In function 'void fast_scan(int&)':
joioi.cpp:131:31: 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); }
                          ~~~~~^~~~~~~~~~
joioi.cpp: In function 'void fast_scan(long long int&)':
joioi.cpp:132:37: 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); }
                                ~~~~~^~~~~~~~~~~~
joioi.cpp: In function 'void fast_scan(long long unsigned int&)':
joioi.cpp:133:46: 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); }
                                         ~~~~~^~~~~~~~~~~~
joioi.cpp: In function 'void fast_scan(double&)':
joioi.cpp:134:34: 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); }
                             ~~~~~^~~~~~~~~~~
joioi.cpp: In function 'void fast_scan(long double&)':
joioi.cpp:135:39: 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); }
                                  ~~~~~^~~~~~~~~~~
joioi.cpp: In function 'void fast_scan(char&)':
joioi.cpp:137:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%c", &x); 
  ~~~~~^~~~~~~~~~
joioi.cpp: In function 'void fast_scan(std::__cxx11::string&)':
joioi.cpp:143:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", string_in_buffer);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 540 KB Output is correct
4 Correct 2 ms 616 KB Output is correct
5 Correct 2 ms 616 KB Output is correct
6 Correct 2 ms 616 KB Output is correct
7 Correct 2 ms 616 KB Output is correct
8 Correct 3 ms 616 KB Output is correct
9 Correct 3 ms 644 KB Output is correct
10 Correct 2 ms 644 KB Output is correct
11 Correct 2 ms 644 KB Output is correct
12 Correct 2 ms 644 KB Output is correct
13 Correct 2 ms 696 KB Output is correct
14 Correct 2 ms 696 KB Output is correct

Subtask #2
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 540 KB Output is correct
4 Correct 2 ms 616 KB Output is correct
5 Correct 2 ms 616 KB Output is correct
6 Correct 2 ms 616 KB Output is correct
7 Correct 2 ms 616 KB Output is correct
8 Correct 3 ms 616 KB Output is correct
9 Correct 3 ms 644 KB Output is correct
10 Correct 2 ms 644 KB Output is correct
11 Correct 2 ms 644 KB Output is correct
12 Correct 2 ms 644 KB Output is correct
13 Correct 2 ms 696 KB Output is correct
14 Correct 2 ms 696 KB Output is correct
15 Correct 6 ms 3768 KB Output is correct
16 Correct 15 ms 4792 KB Output is correct
17 Correct 19 ms 4792 KB Output is correct
18 Correct 17 ms 4792 KB Output is correct
19 Correct 17 ms 4792 KB Output is correct
20 Correct 16 ms 4792 KB Output is correct
21 Correct 19 ms 4824 KB Output is correct
22 Correct 18 ms 4824 KB Output is correct
23 Correct 19 ms 4824 KB Output is correct
24 Correct 17 ms 4824 KB Output is correct
25 Correct 19 ms 4824 KB Output is correct
26 Correct 19 ms 4824 KB Output is correct
27 Correct 20 ms 4824 KB Output is correct
28 Correct 20 ms 4824 KB Output is correct

Subtask #3
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 540 KB Output is correct
4 Correct 2 ms 616 KB Output is correct
5 Correct 2 ms 616 KB Output is correct
6 Correct 2 ms 616 KB Output is correct
7 Correct 2 ms 616 KB Output is correct
8 Correct 3 ms 616 KB Output is correct
9 Correct 3 ms 644 KB Output is correct
10 Correct 2 ms 644 KB Output is correct
11 Correct 2 ms 644 KB Output is correct
12 Correct 2 ms 644 KB Output is correct
13 Correct 2 ms 696 KB Output is correct
14 Correct 2 ms 696 KB Output is correct
15 Correct 6 ms 3768 KB Output is correct
16 Correct 15 ms 4792 KB Output is correct
17 Correct 19 ms 4792 KB Output is correct
18 Correct 17 ms 4792 KB Output is correct
19 Correct 17 ms 4792 KB Output is correct
20 Correct 16 ms 4792 KB Output is correct
21 Correct 19 ms 4824 KB Output is correct
22 Correct 18 ms 4824 KB Output is correct
23 Correct 19 ms 4824 KB Output is correct
24 Correct 17 ms 4824 KB Output is correct
25 Correct 19 ms 4824 KB Output is correct
26 Correct 19 ms 4824 KB Output is correct
27 Correct 20 ms 4824 KB Output is correct
28 Correct 20 ms 4824 KB Output is correct
29 Correct 2785 ms 93052 KB Output is correct
30 Correct 2664 ms 93052 KB Output is correct
31 Correct 2795 ms 94628 KB Output is correct
32 Correct 2922 ms 94772 KB Output is correct
33 Correct 2282 ms 94772 KB Output is correct
34 Correct 2812 ms 94824 KB Output is correct
35 Correct 3280 ms 94896 KB Output is correct
36 Correct 2594 ms 124128 KB Output is correct
37 Correct 3427 ms 167368 KB Output is correct