oj.uz

Submission #55399

# Submission time Handle Problem Language Result Execution time Memory
55399 2018-07-07T07:35:17 Z 강태규(#1543) Sandwich (JOI16_sandwich) C++11
35 / 100
 8000 ms 40860 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <unordered_map>
#include <functional>
#include <cstring>
#include <cmath>
#include <ctime>
#include <cstdlib>

using namespace std;
typedef long long llong;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<llong, llong> pll;
 
int r, c;
char grid[401][401];
vector<int> edge[2][401][401];
int used[2][400][400];
int fin[2][400][400];
 
void intToNode(int &t, int &x, int &y, int i) {
    y = i & 1023;
    x = (i >> 10) & 1023;
    t = i >> 20;
}

const int inf = 1e6;
int dfs(int d) {
    int t, x, y;
    intToNode(t, x, y, d);
    if (fin[t][x][y]) return 0;
    if (used[t][x][y]) return inf;
    used[t][x][y] = 1;
    int ret = 1;
    
    for (int i : edge[t][x][y]) {
        ret += dfs(i);
        ret = min(ret, inf);
    }
    fin[t][x][y] = 1;
    return ret;
}

int ans[400][400];

int main() {
    scanf("%d%d", &r, &c);
    for (int i = 0; i < r; ++i) {
        scanf("%s", grid[i]);
    }
    for (int i = 0; i < r; ++i) {
        for (int j = 0; j < c; ++j) {
            if (j) edge[0][i][j].push_back((i << 10) | (j - 1));
            if (i + 1 < r) edge[grid[i][j] != 'N'][i][j].push_back(((grid[i + 1][j] != 'N') << 20) | ((i + 1) << 10) | j);
            if (j + 1 < c) edge[1][i][j].push_back((1 << 20) | (i << 10) | (j + 1));
            if (i) edge[grid[i][j] != 'Z'][i][j].push_back(((grid[i - 1][j] != 'Z') << 20) | ((i - 1) << 10) | j);
        }
    }
    for (int i = 0; i < r; ++i) {
        for (int j = 0; j < r; ++j) {
            for (int k = 0; k < c; ++k) {
                used[0][j][k] = 0;
                used[1][j][k] = 0;
                fin[0][j][k] = 0;
                fin[1][j][k] = 0;
            }
        }
        int sum = 0;
        for (int j = 0; j < c; ++j) {
            sum += dfs((i << 10) | j);
            sum = min(sum, inf);
            ans[i][j] = sum;
        }
    }
    
    for (int i = 0; i < r; ++i) {
        for (int j = 0; j < r; ++j) {
            for (int k = 0; k < c; ++k) {
                used[0][j][k] = 0;
                used[1][j][k] = 0;
                fin[0][j][k] = 0;
                fin[1][j][k] = 0;
            }
        }
        int sum = 0;
        for (int j = c; j--; ) {
            sum += dfs((1 << 20) | (i << 10) | j);
            sum = min(sum, inf);
            ans[i][j] = min(ans[i][j], sum);
        }
    }
    for (int i = 0; i < r; ++i) {
        for (int j = 0; j < c; ++j) {
            printf("%d ", ans[i][j] < inf ? 2 * ans[i][j] : -1);
        }
        printf("\n");
    }
    
	return 0;
}

Compilation message

sandwich.cpp: In function 'int main()':
sandwich.cpp:53:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &r, &c);
     ~~~~~^~~~~~~~~~~~~~~~
sandwich.cpp:55:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s", grid[i]);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 7928 KB Output is correct
2 Correct 9 ms 7928 KB Output is correct
3 Correct 8 ms 8348 KB Output is correct
4 Correct 8 ms 8348 KB Output is correct
5 Correct 8 ms 8448 KB Output is correct
6 Correct 28 ms 8832 KB Output is correct
7 Correct 23 ms 8832 KB Output is correct
8 Correct 20 ms 8832 KB Output is correct
9 Correct 17 ms 8832 KB Output is correct
10 Correct 18 ms 8832 KB Output is correct
11 Correct 25 ms 8832 KB Output is correct
12 Correct 14 ms 8832 KB Output is correct
13 Correct 25 ms 8832 KB Output is correct
14 Correct 22 ms 8980 KB Output is correct
15 Correct 15 ms 8980 KB Output is correct
16 Correct 16 ms 8980 KB Output is correct
17 Correct 16 ms 8980 KB Output is correct
18 Correct 16 ms 8980 KB Output is correct
19 Correct 15 ms 8980 KB Output is correct
20 Correct 16 ms 8980 KB Output is correct
21 Correct 22 ms 8980 KB Output is correct
22 Correct 20 ms 8980 KB Output is correct
23 Correct 19 ms 8980 KB Output is correct
24 Correct 33 ms 8980 KB Output is correct
25 Correct 25 ms 8980 KB Output is correct
26 Correct 20 ms 8980 KB Output is correct
27 Correct 12 ms 8980 KB Output is correct
28 Correct 18 ms 9000 KB Output is correct

Subtask #2
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 7928 KB Output is correct
2 Correct 9 ms 7928 KB Output is correct
3 Correct 8 ms 8348 KB Output is correct
4 Correct 8 ms 8348 KB Output is correct
5 Correct 8 ms 8448 KB Output is correct
6 Correct 28 ms 8832 KB Output is correct
7 Correct 23 ms 8832 KB Output is correct
8 Correct 20 ms 8832 KB Output is correct
9 Correct 17 ms 8832 KB Output is correct
10 Correct 18 ms 8832 KB Output is correct
11 Correct 25 ms 8832 KB Output is correct
12 Correct 14 ms 8832 KB Output is correct
13 Correct 25 ms 8832 KB Output is correct
14 Correct 22 ms 8980 KB Output is correct
15 Correct 15 ms 8980 KB Output is correct
16 Correct 16 ms 8980 KB Output is correct
17 Correct 16 ms 8980 KB Output is correct
18 Correct 16 ms 8980 KB Output is correct
19 Correct 15 ms 8980 KB Output is correct
20 Correct 16 ms 8980 KB Output is correct
21 Correct 22 ms 8980 KB Output is correct
22 Correct 20 ms 8980 KB Output is correct
23 Correct 19 ms 8980 KB Output is correct
24 Correct 33 ms 8980 KB Output is correct
25 Correct 25 ms 8980 KB Output is correct
26 Correct 20 ms 8980 KB Output is correct
27 Correct 12 ms 8980 KB Output is correct
28 Correct 18 ms 9000 KB Output is correct
29 Correct 9 ms 9000 KB Output is correct
30 Correct 20 ms 11436 KB Output is correct
31 Execution timed out 8076 ms 40860 KB Time limit exceeded
32 Halted 0 ms 0 KB -