oj.uz

Submission #591037

# Submission time Handle Problem Language Result Execution time Memory
591037 2022-07-06T18:39:26 Z piOOE Dango Maker (JOI18_dango_maker) C++17
100 / 100
 229 ms 148492 KB 
//#define _GLIBCXX_DEBUG

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include <bits/stdc++.h>

using namespace std;

//randoms
//chrono::steady_clock::now().time_since_epoch().count()
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

#define ll long long
#define trace(x) cout << #x << " = " << (x) << endl;
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define uniq(x) x.resize(unique(all(x)) -  begin(x))
#define ld long double
#define sz(s) (int) size(s)
#define pii pair<int, int>
#define mp(x, y) make_pair(x, y)
#define mt make_tuple
#define int128 __int128

template<typename T>
void ckmn(T &x, T y) { if (x > y) { x = y; }}

template<typename T>
void ckmx(T &x, T y) { if (x < y) { x = y; }}


int rand(int l, int r) { return (int) ((ll) rnd() % (r - l + 1)) + l; }

const ll infL = 1e18;
const int infI = 1e9 + 7;
const int N = 3000000;
const ll mod = 998244353;
const ld eps = 1e-9;

int g[N][3];
int used[N], pr[N], T;

bool dfs(int v) {
    if (used[v] == T) return false;
    used[v] = T;
    for (int to : g[v]) {
        if (to != -1 && pr[to] == -1) {
            pr[to] = v;
            return true;
        }
    }
    for (int to : g[v]) {
        if (to != -1 && dfs(pr[to])) {
            pr[to] = v;
            return true;
        }
    }
    return false;
}


int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m;
    cin >> n >> m;
    vector<string> s(n);
    vector<vector<int>> R(n, vector<int>(m, -1));
    vector<vector<int>> D(n, vector<int>(m, -1));
    for (int i = 0; i < n; ++i) {
        cin >> s[i];
    }
    memset(g, -1, sizeof(g));
    int last = -1;
    for (int i = 1; i < n - 1; ++i) {
        for (int j = 0; j < m; ++j) {
            if (s[i][j] == 'G' && s[i - 1][j] == 'R' && s[i + 1][j] == 'W') {
                D[i][j] = D[i - 1][j] = D[i + 1][j] = ++last;
            }
        }
    }
    int gg = last;
    last = -1;
    for (int i = 0; i < n; ++i) {
        for (int j = 1; j < m - 1; ++j) {
            if (s[i][j] == 'G' && s[i][j - 1] == 'R' && s[i][j + 1] == 'W') {
                R[i][j] = R[i][j - 1] = R[i][j + 1] = ++last;
            }
        }
    }
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            if (D[i][j] != -1 && R[i][j] != -1) {

                g[D[i][j]][used[D[i][j]]++] = R[i][j];
            }
        }
    }
    memset(used, 0, sizeof(used));
    memset(pr, -1, sizeof(pr));
    int ans = 0;
    for (int i = 0; i <= gg; ++i) {
        ++T;
        if (dfs(i))
            ++ans;
    }
    cout << gg + last - ans + 2;
    return 0;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 58988 KB Output is correct
2 Correct 21 ms 58964 KB Output is correct
3 Correct 22 ms 58952 KB Output is correct
4 Correct 22 ms 59036 KB Output is correct
5 Correct 25 ms 58964 KB Output is correct
6 Correct 21 ms 58964 KB Output is correct
7 Correct 21 ms 59004 KB Output is correct
8 Correct 21 ms 58964 KB Output is correct
9 Correct 20 ms 58964 KB Output is correct
10 Correct 22 ms 58944 KB Output is correct
11 Correct 22 ms 59012 KB Output is correct
12 Correct 22 ms 59020 KB Output is correct
13 Correct 22 ms 58956 KB Output is correct
14 Correct 27 ms 58980 KB Output is correct
15 Correct 22 ms 58964 KB Output is correct
16 Correct 23 ms 58960 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 58988 KB Output is correct
2 Correct 21 ms 58964 KB Output is correct
3 Correct 22 ms 58952 KB Output is correct
4 Correct 22 ms 59036 KB Output is correct
5 Correct 25 ms 58964 KB Output is correct
6 Correct 21 ms 58964 KB Output is correct
7 Correct 21 ms 59004 KB Output is correct
8 Correct 21 ms 58964 KB Output is correct
9 Correct 20 ms 58964 KB Output is correct
10 Correct 22 ms 58944 KB Output is correct
11 Correct 22 ms 59012 KB Output is correct
12 Correct 22 ms 59020 KB Output is correct
13 Correct 22 ms 58956 KB Output is correct
14 Correct 27 ms 58980 KB Output is correct
15 Correct 22 ms 58964 KB Output is correct
16 Correct 23 ms 58960 KB Output is correct
17 Correct 21 ms 58964 KB Output is correct
18 Correct 22 ms 58960 KB Output is correct
19 Correct 21 ms 58964 KB Output is correct
20 Correct 22 ms 58904 KB Output is correct
21 Correct 22 ms 59000 KB Output is correct
22 Correct 21 ms 58964 KB Output is correct
23 Correct 23 ms 58964 KB Output is correct
24 Correct 21 ms 58924 KB Output is correct
25 Correct 21 ms 58996 KB Output is correct
26 Correct 26 ms 59028 KB Output is correct
27 Correct 22 ms 58964 KB Output is correct
28 Correct 24 ms 59072 KB Output is correct
29 Correct 23 ms 58964 KB Output is correct
30 Correct 23 ms 58988 KB Output is correct
31 Correct 22 ms 58984 KB Output is correct
32 Correct 23 ms 58968 KB Output is correct
33 Correct 23 ms 58964 KB Output is correct
34 Correct 22 ms 58932 KB Output is correct
35 Correct 22 ms 58968 KB Output is correct
36 Correct 24 ms 58964 KB Output is correct
37 Correct 22 ms 58912 KB Output is correct
38 Correct 23 ms 59012 KB Output is correct
39 Correct 24 ms 58964 KB Output is correct
40 Correct 21 ms 58916 KB Output is correct
41 Correct 23 ms 58964 KB Output is correct
42 Correct 22 ms 58928 KB Output is correct
43 Correct 23 ms 58964 KB Output is correct
44 Correct 23 ms 58964 KB Output is correct
45 Correct 22 ms 58984 KB Output is correct
46 Correct 22 ms 58976 KB Output is correct
47 Correct 22 ms 58932 KB Output is correct
48 Correct 22 ms 58964 KB Output is correct
49 Correct 26 ms 58956 KB Output is correct
50 Correct 22 ms 58940 KB Output is correct
51 Correct 21 ms 58968 KB Output is correct
52 Correct 23 ms 58964 KB Output is correct
53 Correct 22 ms 58976 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 58988 KB Output is correct
2 Correct 21 ms 58964 KB Output is correct
3 Correct 22 ms 58952 KB Output is correct
4 Correct 22 ms 59036 KB Output is correct
5 Correct 25 ms 58964 KB Output is correct
6 Correct 21 ms 58964 KB Output is correct
7 Correct 21 ms 59004 KB Output is correct
8 Correct 21 ms 58964 KB Output is correct
9 Correct 20 ms 58964 KB Output is correct
10 Correct 22 ms 58944 KB Output is correct
11 Correct 22 ms 59012 KB Output is correct
12 Correct 22 ms 59020 KB Output is correct
13 Correct 22 ms 58956 KB Output is correct
14 Correct 27 ms 58980 KB Output is correct
15 Correct 22 ms 58964 KB Output is correct
16 Correct 23 ms 58960 KB Output is correct
17 Correct 21 ms 58964 KB Output is correct
18 Correct 22 ms 58960 KB Output is correct
19 Correct 21 ms 58964 KB Output is correct
20 Correct 22 ms 58904 KB Output is correct
21 Correct 22 ms 59000 KB Output is correct
22 Correct 21 ms 58964 KB Output is correct
23 Correct 23 ms 58964 KB Output is correct
24 Correct 21 ms 58924 KB Output is correct
25 Correct 21 ms 58996 KB Output is correct
26 Correct 26 ms 59028 KB Output is correct
27 Correct 22 ms 58964 KB Output is correct
28 Correct 24 ms 59072 KB Output is correct
29 Correct 23 ms 58964 KB Output is correct
30 Correct 23 ms 58988 KB Output is correct
31 Correct 22 ms 58984 KB Output is correct
32 Correct 23 ms 58968 KB Output is correct
33 Correct 23 ms 58964 KB Output is correct
34 Correct 22 ms 58932 KB Output is correct
35 Correct 22 ms 58968 KB Output is correct
36 Correct 24 ms 58964 KB Output is correct
37 Correct 22 ms 58912 KB Output is correct
38 Correct 23 ms 59012 KB Output is correct
39 Correct 24 ms 58964 KB Output is correct
40 Correct 21 ms 58916 KB Output is correct
41 Correct 23 ms 58964 KB Output is correct
42 Correct 22 ms 58928 KB Output is correct
43 Correct 23 ms 58964 KB Output is correct
44 Correct 23 ms 58964 KB Output is correct
45 Correct 22 ms 58984 KB Output is correct
46 Correct 22 ms 58976 KB Output is correct
47 Correct 22 ms 58932 KB Output is correct
48 Correct 22 ms 58964 KB Output is correct
49 Correct 26 ms 58956 KB Output is correct
50 Correct 22 ms 58940 KB Output is correct
51 Correct 21 ms 58968 KB Output is correct
52 Correct 23 ms 58964 KB Output is correct
53 Correct 22 ms 58976 KB Output is correct
54 Correct 21 ms 59012 KB Output is correct
55 Correct 23 ms 59348 KB Output is correct
56 Correct 22 ms 59092 KB Output is correct
57 Correct 24 ms 59344 KB Output is correct
58 Correct 43 ms 68976 KB Output is correct
59 Correct 188 ms 148296 KB Output is correct
60 Correct 184 ms 148492 KB Output is correct
61 Correct 188 ms 148340 KB Output is correct
62 Correct 21 ms 59092 KB Output is correct
63 Correct 180 ms 145256 KB Output is correct
64 Correct 170 ms 148444 KB Output is correct
65 Correct 212 ms 148476 KB Output is correct
66 Correct 229 ms 148460 KB Output is correct
67 Correct 129 ms 148300 KB Output is correct
68 Correct 126 ms 148340 KB Output is correct
69 Correct 137 ms 148260 KB Output is correct
70 Correct 40 ms 68940 KB Output is correct
71 Correct 41 ms 69016 KB Output is correct
72 Correct 40 ms 68928 KB Output is correct
73 Correct 43 ms 68932 KB Output is correct
74 Correct 39 ms 69040 KB Output is correct
75 Correct 40 ms 68972 KB Output is correct
76 Correct 41 ms 68952 KB Output is correct
77 Correct 40 ms 68940 KB Output is correct
78 Correct 46 ms 69044 KB Output is correct
79 Correct 40 ms 68964 KB Output is correct
80 Correct 40 ms 68992 KB Output is correct
81 Correct 40 ms 68936 KB Output is correct
82 Correct 42 ms 69032 KB Output is correct
83 Correct 43 ms 69024 KB Output is correct
84 Correct 40 ms 68924 KB Output is correct
85 Correct 42 ms 69052 KB Output is correct
86 Correct 45 ms 69036 KB Output is correct
87 Correct 43 ms 68964 KB Output is correct
88 Correct 41 ms 68956 KB Output is correct
89 Correct 40 ms 69020 KB Output is correct
90 Correct 44 ms 69036 KB Output is correct