oj.uz

Submission #330197

# Submission time Handle Problem Language Result Execution time Memory
330197 2020-11-24T06:36:28 Z Kevin_Zhang_TW Dango Maker (JOI18_dango_maker) C++17
33 / 100
 453 ms 262148 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T>
bool chmax(T &a, T b) { return a < b ? (a = b, true) : false; }
template<class T> 
bool chmin(T &a, T b) { return b < a ? (a = b, true) : false; }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U>
void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T>
void debug(T L, T R) { while (L != R) cerr << *L << " \n"[next(L) == R], ++L; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 3005, MAX_M = MAX_N * MAX_N / 3 << 1;
char w[MAX_N][MAX_N];
int n, m, a, b, id[MAX_N][MAX_N];
bool valid (char a, char b, char c) { return a == 'R' && b == 'G' && c == 'W'; }
vector<int> edge[MAX_M];
int ma[MAX_M], vist[MAX_M];
int Time;
bool dfs(int x) {
	if (vist[x] == Time) return false;
	vist[x] = Time;
	for (int u : edge[x]) if (ma[u] == -1 || dfs(ma[u])) {
		return ma[u] = x, ma[x] = u, true;
	}
	return false;
}
int max_clique() {
	b += a;
	memset(ma, -1, sizeof(ma)); 
	int res = b;

	for (int i = 1;i <= a;++i)
		if (ma[i] == -1 && (Time = i, dfs(i)))
			--res;

	return res; 
}
int solve() {
	for (int i = 1;i <= n;++i)
		for (int j = 1;j <= m;++j) { 
			if (valid(w[i][j-1], w[i][j], w[i][j+1])) 
				id[i][j] = ++a; 
		} 

	for (int i = 1;i <= n;++i)
		for (int j = 1;j <= m;++j) { 
			if (valid(w[i-1][j], w[i][j], w[i+1][j])) {
				++b;
				for (int x : {id[i-1][j+1], id[i][j], id[i+1][j-1]})
					edge[x].pb(b + a);
			} 
		} 

	return max_clique(); 
}
int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n >> m;
	for (int i = 1;i <= n;++i)
		cin >> w[i] + 1;

	cout << solve() << '\n';
}

Compilation message

dango_maker.cpp: In function 'int32_t main()':
dango_maker.cpp:70:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   70 |   cin >> w[i] + 1;
      |          ~~~~~^~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 165228 KB Output is correct
2 Correct 114 ms 165356 KB Output is correct
3 Correct 118 ms 165228 KB Output is correct
4 Correct 108 ms 165356 KB Output is correct
5 Correct 104 ms 165356 KB Output is correct
6 Correct 103 ms 165356 KB Output is correct
7 Correct 104 ms 165356 KB Output is correct
8 Correct 102 ms 165356 KB Output is correct
9 Correct 106 ms 165356 KB Output is correct
10 Correct 103 ms 165356 KB Output is correct
11 Correct 102 ms 165356 KB Output is correct
12 Correct 104 ms 165376 KB Output is correct
13 Correct 103 ms 165356 KB Output is correct
14 Correct 105 ms 165356 KB Output is correct
15 Correct 102 ms 165356 KB Output is correct
16 Correct 112 ms 165356 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 165228 KB Output is correct
2 Correct 114 ms 165356 KB Output is correct
3 Correct 118 ms 165228 KB Output is correct
4 Correct 108 ms 165356 KB Output is correct
5 Correct 104 ms 165356 KB Output is correct
6 Correct 103 ms 165356 KB Output is correct
7 Correct 104 ms 165356 KB Output is correct
8 Correct 102 ms 165356 KB Output is correct
9 Correct 106 ms 165356 KB Output is correct
10 Correct 103 ms 165356 KB Output is correct
11 Correct 102 ms 165356 KB Output is correct
12 Correct 104 ms 165376 KB Output is correct
13 Correct 103 ms 165356 KB Output is correct
14 Correct 105 ms 165356 KB Output is correct
15 Correct 102 ms 165356 KB Output is correct
16 Correct 112 ms 165356 KB Output is correct
17 Correct 103 ms 165484 KB Output is correct
18 Correct 110 ms 165356 KB Output is correct
19 Correct 102 ms 165356 KB Output is correct
20 Correct 106 ms 165356 KB Output is correct
21 Correct 105 ms 165356 KB Output is correct
22 Correct 105 ms 165356 KB Output is correct
23 Correct 103 ms 165356 KB Output is correct
24 Correct 104 ms 165356 KB Output is correct
25 Correct 104 ms 165356 KB Output is correct
26 Correct 104 ms 165228 KB Output is correct
27 Correct 104 ms 165356 KB Output is correct
28 Correct 106 ms 165408 KB Output is correct
29 Correct 105 ms 165356 KB Output is correct
30 Correct 104 ms 165376 KB Output is correct
31 Correct 105 ms 165356 KB Output is correct
32 Correct 104 ms 165368 KB Output is correct
33 Correct 114 ms 165356 KB Output is correct
34 Correct 103 ms 165356 KB Output is correct
35 Correct 102 ms 165356 KB Output is correct
36 Correct 103 ms 165484 KB Output is correct
37 Correct 102 ms 165356 KB Output is correct
38 Correct 103 ms 165484 KB Output is correct
39 Correct 101 ms 165356 KB Output is correct
40 Correct 105 ms 165356 KB Output is correct
41 Correct 103 ms 165484 KB Output is correct
42 Correct 114 ms 165356 KB Output is correct
43 Correct 110 ms 165484 KB Output is correct
44 Correct 103 ms 165484 KB Output is correct
45 Correct 123 ms 165356 KB Output is correct
46 Correct 106 ms 165356 KB Output is correct
47 Correct 106 ms 165356 KB Output is correct
48 Correct 104 ms 165356 KB Output is correct
49 Correct 103 ms 165356 KB Output is correct
50 Correct 117 ms 165356 KB Output is correct
51 Correct 112 ms 165356 KB Output is correct
52 Correct 100 ms 165356 KB Output is correct
53 Correct 102 ms 165356 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 165228 KB Output is correct
2 Correct 114 ms 165356 KB Output is correct
3 Correct 118 ms 165228 KB Output is correct
4 Correct 108 ms 165356 KB Output is correct
5 Correct 104 ms 165356 KB Output is correct
6 Correct 103 ms 165356 KB Output is correct
7 Correct 104 ms 165356 KB Output is correct
8 Correct 102 ms 165356 KB Output is correct
9 Correct 106 ms 165356 KB Output is correct
10 Correct 103 ms 165356 KB Output is correct
11 Correct 102 ms 165356 KB Output is correct
12 Correct 104 ms 165376 KB Output is correct
13 Correct 103 ms 165356 KB Output is correct
14 Correct 105 ms 165356 KB Output is correct
15 Correct 102 ms 165356 KB Output is correct
16 Correct 112 ms 165356 KB Output is correct
17 Correct 103 ms 165484 KB Output is correct
18 Correct 110 ms 165356 KB Output is correct
19 Correct 102 ms 165356 KB Output is correct
20 Correct 106 ms 165356 KB Output is correct
21 Correct 105 ms 165356 KB Output is correct
22 Correct 105 ms 165356 KB Output is correct
23 Correct 103 ms 165356 KB Output is correct
24 Correct 104 ms 165356 KB Output is correct
25 Correct 104 ms 165356 KB Output is correct
26 Correct 104 ms 165228 KB Output is correct
27 Correct 104 ms 165356 KB Output is correct
28 Correct 106 ms 165408 KB Output is correct
29 Correct 105 ms 165356 KB Output is correct
30 Correct 104 ms 165376 KB Output is correct
31 Correct 105 ms 165356 KB Output is correct
32 Correct 104 ms 165368 KB Output is correct
33 Correct 114 ms 165356 KB Output is correct
34 Correct 103 ms 165356 KB Output is correct
35 Correct 102 ms 165356 KB Output is correct
36 Correct 103 ms 165484 KB Output is correct
37 Correct 102 ms 165356 KB Output is correct
38 Correct 103 ms 165484 KB Output is correct
39 Correct 101 ms 165356 KB Output is correct
40 Correct 105 ms 165356 KB Output is correct
41 Correct 103 ms 165484 KB Output is correct
42 Correct 114 ms 165356 KB Output is correct
43 Correct 110 ms 165484 KB Output is correct
44 Correct 103 ms 165484 KB Output is correct
45 Correct 123 ms 165356 KB Output is correct
46 Correct 106 ms 165356 KB Output is correct
47 Correct 106 ms 165356 KB Output is correct
48 Correct 104 ms 165356 KB Output is correct
49 Correct 103 ms 165356 KB Output is correct
50 Correct 117 ms 165356 KB Output is correct
51 Correct 112 ms 165356 KB Output is correct
52 Correct 100 ms 165356 KB Output is correct
53 Correct 102 ms 165356 KB Output is correct
54 Correct 102 ms 165356 KB Output is correct
55 Correct 106 ms 174316 KB Output is correct
56 Correct 103 ms 165484 KB Output is correct
57 Correct 107 ms 176236 KB Output is correct
58 Correct 115 ms 177632 KB Output is correct
59 Correct 199 ms 218188 KB Output is correct
60 Correct 200 ms 218316 KB Output is correct
61 Correct 215 ms 218192 KB Output is correct
62 Correct 105 ms 165356 KB Output is correct
63 Correct 197 ms 218060 KB Output is correct
64 Runtime error 453 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -