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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#648794#3125. Dango MakerDimash0 4ms9872kbC++232.1kb2024-10-17 20:26:092024-10-17 20:26:10

Judging History

你现在查看的是最新测评结果

  • [2024-10-17 20:26:10]
  • 评测
  • 测评结果:0
  • 用时:4ms
  • 内存:9872kb
  • [2024-10-17 20:26:09]
  • 提交

answer

#include <bits/stdc++.h>
    
using namespace std;
    
typedef long long ll;
    
const int  N = 3e3 + 12, MOD = 998244353, M = 3e6 + 12;
    
char a[N][N];
int n, m, res = 0, res1 = 0, v[N][N], it = 1, h[N][N];
vector<int> g[M];   
void add(int x, int y) {
    g[x].push_back(y);
    g[y].push_back(x);
}
bool vis[N * N];
pair<int, int> dfs(int v){
    vis[v] = 1;
    int dp1 = 1, dp0 = 0;
    for(int to:g[v]) {
        if(vis[to]) continue;
        auto [d0, d1] =  dfs(to);
        dp0 += max(d0, d1);
        d1 += d0;
    }
    return {dp0, dp1};
}
void test() {
    cin >> n >> m;
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            cin >> a[i][j];
        }
    }
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            if(a[i][j] == 'G' && a[i][j - 1] == 'R' && a[i][j + 1] == 'W') {
                h[i][j - 1] = it++;
            }
            if(a[i][j] == 'G' && a[i - 1][j] == 'R' && a[i + 1][j] == 'W') {
                v[i - 1][j] = it++;
            }
        }
    }
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            if(a[i][j] == 'G' && a[i][j - 1] == 'R' && a[i][j + 1] == 'W') {
                if(v[i][j - 1]) {
                    add(v[i][j - 1], h[i][j - 1]);
                }
                if(v[i - 1][j]) {
                    add(v[i - 1][j], h[i][j - 1]);
                }
                if(v[i - 2][j + 1]) {
                    add(v[i - 2][j + 1], h[i][j - 1]);
                }
            }
        }
    }
    for(int i = 1; i < it; i++) {
        sort(g[i].begin(), g[i].end());
        g[i].resize(unique(g[i].begin(), g[i].end()) - g[i].begin());
    }
    for(int i = 1; i < it; i++) {
        if(!vis[i]) {
            dfs(i);
            auto [x, y] = dfs(i);
            res += max(x, y);
        }
    }
    cout << res << '\n';
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0); 
    
    int t = 1; 
    // cin >> t;
    
    while(t--) 
        test();
    
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 13
Accepted
time: 4ms
memory: 5736kb

input:

1 1
G

output:

0

result:

ok single line: '0'

Test #2:

score: 13
Accepted
time: 4ms
memory: 5596kb

input:

1 2
RG

output:

0

result:

ok single line: '0'

Test #3:

score: 13
Accepted
time: 0ms
memory: 5736kb

input:

2 1
W
R

output:

0

result:

ok single line: '0'

Test #4:

score: 13
Accepted
time: 4ms
memory: 5660kb

input:

3 2
WW
RW
WR

output:

0

result:

ok single line: '0'

Test #5:

score: 13
Accepted
time: 4ms
memory: 7644kb

input:

4 4
GRRW
GWWR
WWWW
RGRG

output:

0

result:

ok single line: '0'

Test #6:

score: 0
Wrong Answer
time: 2ms
memory: 9872kb

input:

4 4
RGRR
RRRG
GRGW
RGWW

output:

1

result:

wrong answer 1st lines differ - expected: '2', found: '1'

Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Skipped

Dependency #1:

0%