oj.uz

Submission #136472

# Submission time Handle Problem Language Result Execution time Memory
136472 2019-07-25T10:48:55 Z sebinkim Connect (CEOI06_connect) C++14
36 / 100
 32 ms 17016 KB 
#include <bits/stdc++.h>

using namespace std;

int D[1010][9090];
char S[33][99];
int n, m;

int main()
{
	int i, j, x, y, t, k, v;
	
	scanf("%d%d\n", &n, &m);
	
	for(i=0; i<n; i++){
		fgets(S[i], 88, stdin);
	}
	
	n /= 2; m /= 2;
	
	for(i=0; i<=n*m; i++){
		for(j=0; j<(1<<n+1); j++){
			D[i][j] = 1e9;
		}
	}
	
	D[0][0] = 0;
	
	for(i=0; i<n*m; i++){
		x = i % n << 1 | 1; y = i / n << 1 | 1;
		for(j=0; j<(1<<n+1); j++){
			if(S[x][y] == 'X'){
				v = 1;
				if(!(j & 3)) k = 2;
				else if((j & 3) != 3) k = 1;
			}
			else{
				v = 2;
				if((j & 3) == 3) k = 1;
				else if(j & 3) k = 2;
				else k = 5;
			}
			
			if(k & 1){
				t = j >> 1 & ~1;
				D[i + 1][t] = min(D[i + 1][t], D[i][j] + (k > 1? 0 : v));
			}
			if(k & 2){
				if(S[x + 1][y] != '-'){
					t = j >> 1 | 1;
					D[i + 1][t] = min(D[i + 1][t], D[i][j] + v);
				}
				if(S[x][y + 1] != '|'){
					t = j >> 1 & ~1 | 1 << n;
					D[i + 1][t] = min(D[i + 1][t], D[i][j] + v);
				}
			}
			if(k & 4){
				if(S[x + 1][y] != '-' && S[x][y + 1] != '|'){
					t = j >> 1 | 1 | 1 << n;
					D[i + 1][t] = min(D[i + 1][t], D[i][j] + v);
				}
			}
		}
	}
	
	printf("%d\n", D[n * m][0]);
	
	return 0;
}

Compilation message

connect.cpp: In function 'int main()':
connect.cpp:22:19: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   for(j=0; j<(1<<n+1); j++){
                  ~^~
connect.cpp:31:19: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   for(j=0; j<(1<<n+1); j++){
                  ~^~
connect.cpp:54:17: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
      t = j >> 1 & ~1 | 1 << n;
          ~~~~~~~^~~~
connect.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d\n", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~~
connect.cpp:16:8: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   fgets(S[i], 88, stdin);
   ~~~~~^~~~~~~~~~~~~~~~~
connect.cpp:46:52: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
     D[i + 1][t] = min(D[i + 1][t], D[i][j] + (k > 1? 0 : v));
                                              ~~~~~~^~~~~~~~

Subtask #1
36.0 / 100.0

# Verdict Execution time Memory Grader output
1 Partially correct 2 ms 504 KB Partially correct (80% score). Wrong board
2 Partially correct 2 ms 504 KB Partially correct (80% score). Wrong board
3 Partially correct 3 ms 632 KB Partially correct (80% score). Wrong board
4 Partially correct 4 ms 1276 KB Partially correct (80% score). Wrong board
5 Incorrect 11 ms 5496 KB Wrong score! (96, expected 102)
6 Incorrect 3 ms 1144 KB Wrong score! (102, expected 112)
7 Partially correct 2 ms 888 KB Partially correct (80% score). Wrong board
8 Incorrect 3 ms 1272 KB Wrong score! (74, expected 94)
9 Incorrect 3 ms 1652 KB Wrong score! (130, expected 132)
10 Incorrect 4 ms 2168 KB Wrong score! (188, expected 208)
11 Partially correct 4 ms 1912 KB Partially correct (80% score). Wrong board
12 Incorrect 6 ms 3192 KB Wrong score! (258, expected 268)
13 Incorrect 6 ms 3320 KB Wrong score! (196, expected 208)
14 Incorrect 9 ms 5112 KB Wrong score! (458, expected 462)
15 Partially correct 11 ms 6136 KB Partially correct (80% score). Wrong board
16 Partially correct 15 ms 8056 KB Partially correct (80% score). Wrong board
17 Incorrect 17 ms 8952 KB Wrong score! (232, expected 288)
18 Partially correct 32 ms 17016 KB Partially correct (80% score). Wrong board
19 Incorrect 32 ms 17016 KB Wrong score! (202, expected 212)
20 Incorrect 31 ms 16988 KB Wrong score! (352, expected 374)