oj.uz

Submission #889252

# Submission time Handle Problem Language Result Execution time Memory
889252 2023-12-19T09:02:01 Z alexander707070 Dango Maker (JOI18_dango_maker) C++14
13 / 100
 33 ms 146156 KB 
#include<bits/stdc++.h>
#define MAXN 6000007
using namespace std;

int n,m;
char t[3007][3007];

vector<int> v[MAXN];
int s[MAXN],cnt1,cnt2,ans;
int num[3007][3007],num2[3007][3007],total;

void dfs(int x,int p,int side){
    s[x]=side;
    if(side==1)cnt1++;
    else cnt2++;

    for(int i=0;i<v[x].size();i++){
        if(v[x][i]==p)continue;
        if(s[v[x][i]]==0)dfs(v[x][i],x,3-side);
    }
}

int main(){

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n>>m;

    for(int i=1;i<=n;i++){
        for(int f=1;f<=m;f++){
            cin>>t[i][f];
        }
    }

    for(int i=1;i<=n;i++){
        for(int f=1;f<=m;f++){
            if(t[i][f]=='R' and t[i][f+1]=='G' and t[i][f+2]=='W'){
                total++; num[i][f]=total;
            }
            if(t[i][f]=='R' and t[i+1][f]=='G' and t[i+2][f]=='W'){
                total++; num2[i][f]=total;
            }

            if(t[i][f]=='R' and t[i][f+1]=='G' and t[i][f+2]=='W' and t[i+1][f]=='G' and t[i+2][f]=='W'){
                v[num[i][f]].push_back(num2[i][f]);
                v[num2[i][f]].push_back(num[i][f]);
            }
        }
    }

    for(int i=2;i<=n-1;i++){
        for(int f=2;f<=m-1;f++){
            if(t[i][f]=='G' and t[i][f-1]=='R' and t[i][f+1]=='W' and t[i-1][f]=='R' and t[i+1][f]=='W'){
                v[num[i][f-1]].push_back(num2[i-1][f]);
                v[num2[i-1][f]].push_back(num[i][f-1]);
            }
        }
    }

    for(int i=3;i<=n;i++){
        for(int f=3;f<=m;f++){
            if(t[i][f]=='W' and t[i][f-2]=='R' and t[i][f-1]=='G' and t[i-2][f]=='R' and t[i-1][f]=='G'){
                v[num[i][f-2]].push_back(num2[i-2][f]);
                v[num2[i-2][f]].push_back(num[i][f-2]);
            }
        }
    }

    for(int i=1;i<=total;i++){
        if(s[i]==0){
            cnt1=cnt2=0;
            dfs(i,0,1);
            ans+=max(cnt1,cnt2);
        }
    }

    cout<<ans<<"\n";

    return 0;
}

Compilation message

dango_maker.cpp: In function 'void dfs(int, int, int)':
dango_maker.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i=0;i<v[x].size();i++){
      |                 ~^~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 143952 KB Output is correct
2 Correct 31 ms 143956 KB Output is correct
3 Correct 30 ms 143960 KB Output is correct
4 Correct 29 ms 143964 KB Output is correct
5 Correct 31 ms 143964 KB Output is correct
6 Correct 31 ms 146012 KB Output is correct
7 Correct 31 ms 146012 KB Output is correct
8 Correct 31 ms 146012 KB Output is correct
9 Correct 30 ms 146000 KB Output is correct
10 Correct 31 ms 143960 KB Output is correct
11 Correct 33 ms 146008 KB Output is correct
12 Correct 31 ms 146008 KB Output is correct
13 Correct 31 ms 146156 KB Output is correct
14 Correct 30 ms 143960 KB Output is correct
15 Correct 29 ms 143964 KB Output is correct
16 Correct 30 ms 143964 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 143952 KB Output is correct
2 Correct 31 ms 143956 KB Output is correct
3 Correct 30 ms 143960 KB Output is correct
4 Correct 29 ms 143964 KB Output is correct
5 Correct 31 ms 143964 KB Output is correct
6 Correct 31 ms 146012 KB Output is correct
7 Correct 31 ms 146012 KB Output is correct
8 Correct 31 ms 146012 KB Output is correct
9 Correct 30 ms 146000 KB Output is correct
10 Correct 31 ms 143960 KB Output is correct
11 Correct 33 ms 146008 KB Output is correct
12 Correct 31 ms 146008 KB Output is correct
13 Correct 31 ms 146156 KB Output is correct
14 Correct 30 ms 143960 KB Output is correct
15 Correct 29 ms 143964 KB Output is correct
16 Correct 30 ms 143964 KB Output is correct
17 Correct 30 ms 145972 KB Output is correct
18 Correct 31 ms 146004 KB Output is correct
19 Correct 31 ms 146012 KB Output is correct
20 Correct 30 ms 146000 KB Output is correct
21 Correct 31 ms 146012 KB Output is correct
22 Correct 31 ms 145960 KB Output is correct
23 Correct 32 ms 146012 KB Output is correct
24 Correct 31 ms 146016 KB Output is correct
25 Correct 31 ms 144056 KB Output is correct
26 Correct 33 ms 144084 KB Output is correct
27 Correct 31 ms 146000 KB Output is correct
28 Correct 30 ms 145996 KB Output is correct
29 Correct 31 ms 146068 KB Output is correct
30 Correct 30 ms 143956 KB Output is correct
31 Correct 31 ms 143956 KB Output is correct
32 Correct 31 ms 143996 KB Output is correct
33 Correct 31 ms 146004 KB Output is correct
34 Incorrect 30 ms 146012 KB Output isn't correct
35 Halted 0 ms 0 KB -

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 143952 KB Output is correct
2 Correct 31 ms 143956 KB Output is correct
3 Correct 30 ms 143960 KB Output is correct
4 Correct 29 ms 143964 KB Output is correct
5 Correct 31 ms 143964 KB Output is correct
6 Correct 31 ms 146012 KB Output is correct
7 Correct 31 ms 146012 KB Output is correct
8 Correct 31 ms 146012 KB Output is correct
9 Correct 30 ms 146000 KB Output is correct
10 Correct 31 ms 143960 KB Output is correct
11 Correct 33 ms 146008 KB Output is correct
12 Correct 31 ms 146008 KB Output is correct
13 Correct 31 ms 146156 KB Output is correct
14 Correct 30 ms 143960 KB Output is correct
15 Correct 29 ms 143964 KB Output is correct
16 Correct 30 ms 143964 KB Output is correct
17 Correct 30 ms 145972 KB Output is correct
18 Correct 31 ms 146004 KB Output is correct
19 Correct 31 ms 146012 KB Output is correct
20 Correct 30 ms 146000 KB Output is correct
21 Correct 31 ms 146012 KB Output is correct
22 Correct 31 ms 145960 KB Output is correct
23 Correct 32 ms 146012 KB Output is correct
24 Correct 31 ms 146016 KB Output is correct
25 Correct 31 ms 144056 KB Output is correct
26 Correct 33 ms 144084 KB Output is correct
27 Correct 31 ms 146000 KB Output is correct
28 Correct 30 ms 145996 KB Output is correct
29 Correct 31 ms 146068 KB Output is correct
30 Correct 30 ms 143956 KB Output is correct
31 Correct 31 ms 143956 KB Output is correct
32 Correct 31 ms 143996 KB Output is correct
33 Correct 31 ms 146004 KB Output is correct
34 Incorrect 30 ms 146012 KB Output isn't correct
35 Halted 0 ms 0 KB -