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답안 #343117

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
343117 2021-01-03T12:25:35 Z chon 보물 찾기 (CEOI13_treasure2) C++14
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#include "treasure.h"
#include <bits/stdc++.h>
//여기서 부터 Hash 구현
#define MAX_TABLE 12960000
 
 
 
 
 
typedef struct
{
	int key[4];
	int  data;
}Hash;
 
Hash tb[MAX_TABLE];
 
 
unsigned long Hash_Key(const int* str)
{
	unsigned long hash = 5381;
	int c;
	c = *str;
	for (int i = 0; i < 4; i++)
	{
		hash = (((hash << 5) + hash) + c) % MAX_TABLE;
		*str++;
		c = *str;
	}
	return hash % MAX_TABLE;
}
 
 
int find(const int *key, int *data )
{
    unsigned long h = Hash_Key(key);
    int cnt = MAX_TABLE;
 
    while (tb[h].key[0] != 0 && cnt--)
    {
        if ( tb[h].key[0]==*key && tb[h].key[1]==*key+1
            && tb[h].key[2]==*key+2 && tb[h].key[3]==*key+3 )
        {
          	*data=tb[h].data;
            return 1;
        }
        h = (h + 1) % MAX_TABLE;
    }
    return 0;
}
 
int add(const int *key, int *data)
{
    unsigned long h = Hash_Key(key);
 
    while (tb[h].key[0] != 0)
    {
        if ( tb[h].key[0]==*key && tb[h].key[1]==*key+1
            && tb[h].key[2]==*key+2 && tb[h].key[3]==*key+3)
        {
            return 0;
        }
 
        h = (h + 1) % MAX_TABLE;
    }
    tb[h].key[0]= *key;
  	tb[h].key[1]= *key+1;
 	tb[h].key[2]= *key+2; 
  	tb[h].key[3]= *key+3;
  
    tb[h].data= *data;
    return 1;
}
 
 
 
 
using namespace std;
 
 
int ans[105][105];
int HOR[105], VER[105];
int area, included, line, ri, le;
 
map< tuple<int, int, int, int>, int > dp;
 
int askit(int r1, int c1, int r2, int c2) {
	//tuple<int, int, int, int> tup(r1, c1, r2, c2);
	
	int input[4];
  	input[0]=r1,input[1]=c1,input[2]=r2,input[3]=c2;
  	int DATA;
  	DATA=0;
  	if (find(input, &DATA)  == 1 ) return tb[ DATA].data;
	
  	add(input, DATA);
  	return dp[DATA].data = countTreasure(r1, c1, r2, c2);
}
 
 
int f(int v, int r, int c, int N) {
	int result = 0, knew = 0, red = 0, want = 0;
	if (v == 0) {
		for (int i = 1; i <= r - 1; i++) {
			for (int j = 1; j <= c; j++) {
				knew += ans[i][j];
			}
		}
		red = askit(1, 1, r, c);
		want = red - knew;
 
		knew = 0;
		for (int j = 1; j <= c - 1; j++) knew += ans[r][j];
		result = want - knew;
	}
	else if (v == 1) {
		for (int i = 1; i <= r - 1; i++) {
			for (int j = c + 1; j <= N; j++) {
				knew += ans[i][j];
			}
		}
		if (c + 1 <= N) red = askit(1, c + 1, r, N);
		want = red - knew;
 
		result = included - want;
	}
	else if (v == 2) {
		for (int i = 1; i <= r - 1; i++) {
			for (int j = c + 1; j <= N; j++) {
				knew += ans[i][j];
			}
		}
		knew = ri - knew;
		if (c + 1 <= N && r + 1 <= N) red = askit(r + 1, c + 1, N, N);
 
		want = knew - red;
		result = included - want;
	}
	else { // D
		for (int i = 1; i <= r - 1; i++) {
			for (int j = 1; j <= c; j++) {
				knew += ans[i][j];
			}
		}
		knew = le - knew;
		if (r + 1 <= N) red = askit(r + 1, 1, N, c);
 
		want = knew - red;
		knew = 0;
		for (int j = 1; j <= c - 1; j++) knew += ans[r][j];
		result = want - knew;
	}
	return result;
}
 
void findTreasure(int N) {
	//int cnt = countTreasure(1, 1, N, N);
	//if(cnt > 0) Report (1, 1);
	area = askit(1, 1, N, N);
	for (int i = 1; i <= N - 1; i++) {
		if (i > (N - i)) VER[i] = askit(1, 1, i, N);
		else VER[i] = area - askit(i + 1, 1, N, N);
	}
	for (int i = 1; i <= N - 1; i++) {
		if (i > (N - i)) HOR[i] = askit(1, 1, N, i);
		else HOR[i] = area - askit(1, i + 1, N, N);
	}
	VER[N] = HOR[N] = area;
 
	for (int i = 1; i <= N; i++) {
		for (int j = 1; j <= N; j++) {
			int below = VER[N] - VER[i];
			int sup = VER[i - 1];
			line = area - sup - below;
 
			included = line;
			for (int k = 1; k < j; k++) included -= ans[i][k];
 
			ri = HOR[N] - HOR[j];
			le = HOR[j];
 
 
			//vector< pair<int, int> > srt;
			int dx, dy;
			int data[4][2];
 
			dx = j, dy = i;
			data[0][0] = dx * dy;
			data[0][1] = 0;
 
 
			dx = N - j, dy = i;
			data[1][0] = dx * dy;
			data[1][1] = 1;
 
			dx = N - j, dy = N - i;
			data[2][0] = dx * dy;
			data[2][1] = 2;
 
 
			dx = j, dy = N - i;
			data[3][0] = dx * dy;
			data[3][1] = 3;
 
 
 
			for (int a = 0; a < 4; a++)
			{
				for (int b = a + 1; b < 4; b++)
				{
					if (data[a][0] > data[b][0])
					{
						int temp;
						temp = data[a][0];
						data[a][0] = data[b][0];
						data[b][0] = temp;
 
						temp = data[a][1];
						data[a][1] = data[b][1];
						data[b][1] = temp;
 
					}
					else if (data[a][0] == data[b][0] && data[a][1] > data[b][1])
					{
						int temp;
						temp = data[a][0];
						data[a][0] = data[b][0];
						data[b][0] = temp;
 
						temp = data[a][1];
						data[a][1] = data[b][1];
						data[b][1] = temp;
					}
				}
			}
			ans[i][j] = f(data[3][1], i, j, N);
		}
	}
 
	for (int i = 1; i <= N; i++) {
		for (int j = 1; j <= N; j++) {
			if (ans[i][j]) Report(i, j);
		}
	}

Compilation message

treasure.cpp: In function 'long unsigned int Hash_Key(const int*)':
treasure.cpp:27:3: warning: value computed is not used [-Wunused-value]
   27 |   *str++;
      |   ^~~~~~
treasure.cpp: In function 'int askit(int, int, int, int)':
treasure.cpp:96:15: error: invalid conversion from 'int' to 'int*' [-fpermissive]
   96 |    add(input, DATA);
      |               ^~~~
      |               |
      |               int
treasure.cpp:52:30: note:   initializing argument 2 of 'int add(const int*, int*)'
   52 | int add(const int *key, int *data)
      |                         ~~~~~^~~~
treasure.cpp:97:13: error: no match for 'operator[]' (operand types are 'std::map<std::tuple<int, int, int, int>, int>' and 'int')
   97 |    return dp[DATA].data = countTreasure(r1, c1, r2, c2);
      |             ^
In file included from /usr/include/c++/9/map:61,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:81,
                 from treasure.cpp:2:
/usr/include/c++/9/bits/stl_map.h:490:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::tuple<int, int, int, int>; _Tp = int; _Compare = std::less<std::tuple<int, int, int, int> >; _Alloc = std::allocator<std::pair<const std::tuple<int, int, int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::tuple<int, int, int, int>]'
  490 |       operator[](const key_type& __k)
      |       ^~~~~~~~
/usr/include/c++/9/bits/stl_map.h:490:34: note:   no known conversion for argument 1 from 'int' to 'const key_type&' {aka 'const std::tuple<int, int, int, int>&'}
  490 |       operator[](const key_type& __k)
      |                  ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/9/bits/stl_map.h:510:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](std::map<_Key, _Tp, _Compare, _Alloc>::key_type&&) [with _Key = std::tuple<int, int, int, int>; _Tp = int; _Compare = std::less<std::tuple<int, int, int, int> >; _Alloc = std::allocator<std::pair<const std::tuple<int, int, int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::tuple<int, int, int, int>]'
  510 |       operator[](key_type&& __k)
      |       ^~~~~~~~
/usr/include/c++/9/bits/stl_map.h:510:29: note:   no known conversion for argument 1 from 'int' to 'std::map<std::tuple<int, int, int, int>, int>::key_type&&' {aka 'std::tuple<int, int, int, int>&&'}
  510 |       operator[](key_type&& __k)
      |                  ~~~~~~~~~~~^~~
treasure.cpp: In function 'void findTreasure(int)':
treasure.cpp:244:2: error: expected '}' at end of input
  244 |  }
      |  ^
treasure.cpp:156:26: note: to match this '{'
  156 | void findTreasure(int N) {
      |                          ^