oj.uz

Submission #81899

# Submission time Handle Problem Language Result Execution time Memory
81899 2018-10-27T15:50:57 Z zoooma13 Dango Maker (JOI18_dango_maker) C++14
13 / 100
 3 ms 1020 KB 
#include <bits/stdc++.h>
using namespace std;

#define MAX_N 3005

int N ,M;
char G[MAX_N][MAX_N];

set <int> Adj[MAX_N];

int idx = 0;
int id1[MAX_N][MAX_N];
int id2[MAX_N][MAX_N];

bool vis[MAX_N*MAX_N];
int Ev ,Od;

void DFS(int Q ,bool S)
{
    Ev += !S ,Od += S;
    vis[Q] = 1;

    for(const int&i : Adj[Q])
        if(!vis[i])
            DFS(i ,!S);
}

int main()
{
    scanf("%d%d",&N,&M);
    for(int i=0; i<N; i++)
        scanf("%s",G[i]);

    for(int i=0; i<N; i++)
    for(int j=0; j<M-2; j++)
        if(G[i][j] == 'R' && G[i][j+1] == 'G' && G[i][j+2] == 'W')
            id1[i][j] = id1[i][j+1] = id1[i][j+2] = ++idx;

    for(int i=0; i<N-2; i++)
    for(int j=0; j<M; j++)
        if(G[i][j] == 'R' && G[i+1][j] == 'G' && G[i+2][j] == 'W')
            id2[i][j] = id2[i+1][j] = id2[i+2][j] = ++idx;

    for(int i=0; i<N; i++)
    for(int j=0; j<M; j++)
        if(id1[i][j] != id2[i][j] && min(id1[i][j] ,id2[i][j]) != 0)
        {
            Adj[id1[i][j]].insert(id2[i][j]);
            Adj[id2[i][j]].insert(id1[i][j]);
        }

    int Ans = 0;
    for(int i=1; i<=idx; i++)
    {
        Ev = 0 ,Od = 0;
        if(!vis[i])
            DFS(i ,0);
        Ans += max(Ev ,Od);
    }

    printf("%d\n",Ans);
}

Compilation message

dango_maker.cpp: In function 'int main()':
dango_maker.cpp:30:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&N,&M);
     ~~~~~^~~~~~~~~~~~~~
dango_maker.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s",G[i]);
         ~~~~~^~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 580 KB Output is correct
3 Correct 3 ms 580 KB Output is correct
4 Correct 2 ms 580 KB Output is correct
5 Correct 2 ms 736 KB Output is correct
6 Correct 3 ms 736 KB Output is correct
7 Correct 2 ms 736 KB Output is correct
8 Correct 2 ms 736 KB Output is correct
9 Correct 2 ms 808 KB Output is correct
10 Correct 2 ms 808 KB Output is correct
11 Correct 2 ms 808 KB Output is correct
12 Correct 3 ms 808 KB Output is correct
13 Correct 2 ms 808 KB Output is correct
14 Correct 3 ms 808 KB Output is correct
15 Correct 2 ms 808 KB Output is correct
16 Correct 2 ms 808 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 580 KB Output is correct
3 Correct 3 ms 580 KB Output is correct
4 Correct 2 ms 580 KB Output is correct
5 Correct 2 ms 736 KB Output is correct
6 Correct 3 ms 736 KB Output is correct
7 Correct 2 ms 736 KB Output is correct
8 Correct 2 ms 736 KB Output is correct
9 Correct 2 ms 808 KB Output is correct
10 Correct 2 ms 808 KB Output is correct
11 Correct 2 ms 808 KB Output is correct
12 Correct 3 ms 808 KB Output is correct
13 Correct 2 ms 808 KB Output is correct
14 Correct 3 ms 808 KB Output is correct
15 Correct 2 ms 808 KB Output is correct
16 Correct 2 ms 808 KB Output is correct
17 Correct 3 ms 808 KB Output is correct
18 Correct 3 ms 912 KB Output is correct
19 Correct 2 ms 912 KB Output is correct
20 Correct 3 ms 912 KB Output is correct
21 Correct 3 ms 912 KB Output is correct
22 Correct 2 ms 912 KB Output is correct
23 Correct 3 ms 912 KB Output is correct
24 Correct 2 ms 912 KB Output is correct
25 Correct 3 ms 912 KB Output is correct
26 Correct 3 ms 912 KB Output is correct
27 Correct 3 ms 976 KB Output is correct
28 Correct 2 ms 996 KB Output is correct
29 Correct 3 ms 1000 KB Output is correct
30 Correct 2 ms 1000 KB Output is correct
31 Correct 3 ms 1000 KB Output is correct
32 Correct 2 ms 1000 KB Output is correct
33 Correct 3 ms 1016 KB Output is correct
34 Incorrect 2 ms 1020 KB Output isn't correct
35 Halted 0 ms 0 KB -

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 580 KB Output is correct
3 Correct 3 ms 580 KB Output is correct
4 Correct 2 ms 580 KB Output is correct
5 Correct 2 ms 736 KB Output is correct
6 Correct 3 ms 736 KB Output is correct
7 Correct 2 ms 736 KB Output is correct
8 Correct 2 ms 736 KB Output is correct
9 Correct 2 ms 808 KB Output is correct
10 Correct 2 ms 808 KB Output is correct
11 Correct 2 ms 808 KB Output is correct
12 Correct 3 ms 808 KB Output is correct
13 Correct 2 ms 808 KB Output is correct
14 Correct 3 ms 808 KB Output is correct
15 Correct 2 ms 808 KB Output is correct
16 Correct 2 ms 808 KB Output is correct
17 Correct 3 ms 808 KB Output is correct
18 Correct 3 ms 912 KB Output is correct
19 Correct 2 ms 912 KB Output is correct
20 Correct 3 ms 912 KB Output is correct
21 Correct 3 ms 912 KB Output is correct
22 Correct 2 ms 912 KB Output is correct
23 Correct 3 ms 912 KB Output is correct
24 Correct 2 ms 912 KB Output is correct
25 Correct 3 ms 912 KB Output is correct
26 Correct 3 ms 912 KB Output is correct
27 Correct 3 ms 976 KB Output is correct
28 Correct 2 ms 996 KB Output is correct
29 Correct 3 ms 1000 KB Output is correct
30 Correct 2 ms 1000 KB Output is correct
31 Correct 3 ms 1000 KB Output is correct
32 Correct 2 ms 1000 KB Output is correct
33 Correct 3 ms 1016 KB Output is correct
34 Incorrect 2 ms 1020 KB Output isn't correct
35 Halted 0 ms 0 KB -