oj.uz

Submission #66869

# Submission time Handle Problem Language Result Execution time Memory
66869 2018-08-12T16:53:27 Z cdemirer Dango Maker (JOI18_dango_maker) C++17
33 / 100
 221 ms 212108 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> ii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vii> vvii;
typedef vector<vi> vvi;
typedef pair<double, double> dodo;
#define pb(x) push_back(x)
#define mp(x, y) make_pair(x, y)


int N, M;

vvi edges;
int num_nodes = 0;
int createNode() {
	edges.pb(vi());
	return num_nodes++;
}
void connect(int a, int b) {
	edges[a].pb(b);
	edges[b].pb(a);
}

const int ARRSIZE = 3000*3000;
int parent[ARRSIZE];
bool vis[ARRSIZE] = {0};
int bfs(int x, bool b) {
	int ret = 0;
	queue<ii> Q;
	Q.push(mp(x, (int)b));
	while (!Q.empty()) {
		ii a = Q.front(); Q.pop();
		if (vis[a.first]) {
			continue;
		}
		vis[a.first] = true;
		ret += a.second;
		for (int i = 0; i < edges[a.first].size(); i++) {
			int y = edges[a.first][i];
			Q.push(mp(y, !a.second));
		}
	}
	return ret;
}
void clean(int x) {
	vis[x] = false;
	for (int i = 0; i < edges[x].size(); i++) {
		int y = edges[x][i];
		if (!vis[y]) continue;
		clean(y);
	}
}	

int mat[3000][3000];
vi touch[3000][3000];
void func() {
	
	cin >> N >> M;
	for (int i = 0; i < N; i++) {
		string s; cin >> s;
		for (int j = 0; j < M; j++) {
			if (s[j] == 'R') mat[i][j] = 0;
			if (s[j] == 'G') mat[i][j] = 1;
			if (s[j] == 'W') mat[i][j] = 2;
		}
	}
	for (int i = 0; i < N; i++) {
		for (int j = 0; j < M-2; j++) {
			if (mat[i][j]*9 + mat[i][j+1]*3 + mat[i][j+2]*1 == 5) {
				int x = createNode();
				/*if (touch[i][j].size() > 0) {
					for (int k = 0; k < touch[i][j].size(); k++) connect(x, touch[i][j][k]);
				}*/
				touch[i][j].pb(x);
				/*if (touch[i][j+1].size() > 0) {
					for (int k = 0; k < touch[i][j+1].size(); k++) connect(x, touch[i][j+1][k]);
				}*/
				touch[i][j+1].pb(x);
				/*if (touch[i][j+2].size() > 0) {
					for (int k = 0; k < touch[i][j+2].size(); k++) connect(x, touch[i][j+2][k]);
				}*/
				touch[i][j+2].pb(x);
			}
		}
	}
	for (int i = 0; i < N-2; i++) {
		for (int j = 0; j < M; j++) {
			if (mat[i][j]*9 + mat[i+1][j]*3 + mat[i+2][j]*1 == 5) {
				int x = createNode();
				//if (touch[i][j].size() > 0) {
				for (int k = 0; k < touch[i][j].size(); k++) connect(x, touch[i][j][k]);
				//}
				//touch[i][j].pb(x);
				//if (touch[i+1][j].size() > 0) {
				for (int k = 0; k < touch[i+1][j].size(); k++) connect(x, touch[i+1][j][k]);
				//}
				//touch[i+1][j].pb(x);
				//if (touch[i+2][j].size() > 0) {
				for (int k = 0; k < touch[i+2][j].size(); k++) connect(x, touch[i+2][j][k]);
				//}
				//touch[i+2][j].pb(x);
			}
		}
	}
}

int count_component(int x) {
	vis[x] = true;
	int ret = 1;
	for (int i = 0; i < edges[x].size(); i++) {
		int y = edges[x][i];
		if (vis[y]) continue;
		ret += count_component(y);
	}
	return ret;
}

int es[ARRSIZE] = {0};
int main(int argc, char **argv) {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	func();
	
	if (N > 1000 || M > 1000) exit(-1);
	
	int sum = 0;
	set<ii> S;
	for (int i = 0; i < num_nodes; i++) es[i] = edges[i].size();
	for (int i = 0; i < num_nodes; i++) S.insert(mp(es[i], i));
	while (!S.empty()) {
		int x = (*S.begin()).second;
		S.erase(S.begin());
		for (int i = 0; i < edges[x].size(); i++) {
			int y = edges[x][i];
			auto it = S.find(mp(es[y], y));
			if (it != S.end()) {
				S.erase(it);
				for (int j = 0; j < edges[y].size(); j++) {
					int y2 = edges[y][j];
					auto it2 = S.find(mp(es[y2], y2));
					if (it2 != S.end()) {
						S.erase(it2);
						es[y2]--;
						S.insert(mp(es[y2], y2));
					}
				}
			}
		}
		sum++;
	}
	/*for (int i = 0; i < num_nodes; i++) {
		if (vis[i]) continue;
		int a = bfs(i, true);
		clean(i);
		int b = bfs(i, false);
		assert(abs(a-b) <= 1);
		sum += max(a, b);
	}*/
	cout << sum << endl;
	
	return 0;
}

Compilation message

dango_maker.cpp: In function 'int bfs(int, bool)':
dango_maker.cpp:41:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < edges[a.first].size(); i++) {
                   ~~^~~~~~~~~~~~~~~~~~~~~~~
dango_maker.cpp: In function 'void clean(int)':
dango_maker.cpp:50:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < edges[x].size(); i++) {
                  ~~^~~~~~~~~~~~~~~~~
dango_maker.cpp: In function 'void func()':
dango_maker.cpp:94:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int k = 0; k < touch[i][j].size(); k++) connect(x, touch[i][j][k]);
                     ~~^~~~~~~~~~~~~~~~~~~~
dango_maker.cpp:98:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int k = 0; k < touch[i+1][j].size(); k++) connect(x, touch[i+1][j][k]);
                     ~~^~~~~~~~~~~~~~~~~~~~~~
dango_maker.cpp:102:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int k = 0; k < touch[i+2][j].size(); k++) connect(x, touch[i+2][j][k]);
                     ~~^~~~~~~~~~~~~~~~~~~~~~
dango_maker.cpp: In function 'int count_component(int)':
dango_maker.cpp:113:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < edges[x].size(); i++) {
                  ~~^~~~~~~~~~~~~~~~~
dango_maker.cpp: In function 'int main(int, char**)':
dango_maker.cpp:137:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < edges[x].size(); i++) {
                   ~~^~~~~~~~~~~~~~~~~
dango_maker.cpp:142:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int j = 0; j < edges[y].size(); j++) {
                     ~~^~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 211704 KB Output is correct
2 Correct 185 ms 211704 KB Output is correct
3 Correct 198 ms 211888 KB Output is correct
4 Correct 214 ms 211888 KB Output is correct
5 Correct 202 ms 211888 KB Output is correct
6 Correct 197 ms 211888 KB Output is correct
7 Correct 199 ms 212000 KB Output is correct
8 Correct 203 ms 212000 KB Output is correct
9 Correct 202 ms 212000 KB Output is correct
10 Correct 188 ms 212000 KB Output is correct
11 Correct 184 ms 212000 KB Output is correct
12 Correct 182 ms 212000 KB Output is correct
13 Correct 199 ms 212000 KB Output is correct
14 Correct 208 ms 212068 KB Output is correct
15 Correct 196 ms 212072 KB Output is correct
16 Correct 198 ms 212076 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 211704 KB Output is correct
2 Correct 185 ms 211704 KB Output is correct
3 Correct 198 ms 211888 KB Output is correct
4 Correct 214 ms 211888 KB Output is correct
5 Correct 202 ms 211888 KB Output is correct
6 Correct 197 ms 211888 KB Output is correct
7 Correct 199 ms 212000 KB Output is correct
8 Correct 203 ms 212000 KB Output is correct
9 Correct 202 ms 212000 KB Output is correct
10 Correct 188 ms 212000 KB Output is correct
11 Correct 184 ms 212000 KB Output is correct
12 Correct 182 ms 212000 KB Output is correct
13 Correct 199 ms 212000 KB Output is correct
14 Correct 208 ms 212068 KB Output is correct
15 Correct 196 ms 212072 KB Output is correct
16 Correct 198 ms 212076 KB Output is correct
17 Correct 194 ms 212076 KB Output is correct
18 Correct 195 ms 212076 KB Output is correct
19 Correct 193 ms 212076 KB Output is correct
20 Correct 204 ms 212076 KB Output is correct
21 Correct 206 ms 212076 KB Output is correct
22 Correct 205 ms 212108 KB Output is correct
23 Correct 221 ms 212108 KB Output is correct
24 Correct 207 ms 212108 KB Output is correct
25 Correct 187 ms 212108 KB Output is correct
26 Correct 188 ms 212108 KB Output is correct
27 Correct 192 ms 212108 KB Output is correct
28 Correct 211 ms 212108 KB Output is correct
29 Correct 200 ms 212108 KB Output is correct
30 Correct 186 ms 212108 KB Output is correct
31 Correct 204 ms 212108 KB Output is correct
32 Correct 208 ms 212108 KB Output is correct
33 Correct 193 ms 212108 KB Output is correct
34 Correct 189 ms 212108 KB Output is correct
35 Correct 206 ms 212108 KB Output is correct
36 Correct 221 ms 212108 KB Output is correct
37 Correct 181 ms 212108 KB Output is correct
38 Correct 195 ms 212108 KB Output is correct
39 Correct 213 ms 212108 KB Output is correct
40 Correct 201 ms 212108 KB Output is correct
41 Correct 200 ms 212108 KB Output is correct
42 Correct 196 ms 212108 KB Output is correct
43 Correct 198 ms 212108 KB Output is correct
44 Correct 207 ms 212108 KB Output is correct
45 Correct 211 ms 212108 KB Output is correct
46 Correct 200 ms 212108 KB Output is correct
47 Correct 203 ms 212108 KB Output is correct
48 Correct 202 ms 212108 KB Output is correct
49 Correct 197 ms 212108 KB Output is correct
50 Correct 187 ms 212108 KB Output is correct
51 Correct 181 ms 212108 KB Output is correct
52 Correct 195 ms 212108 KB Output is correct
53 Correct 202 ms 212108 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 211704 KB Output is correct
2 Correct 185 ms 211704 KB Output is correct
3 Correct 198 ms 211888 KB Output is correct
4 Correct 214 ms 211888 KB Output is correct
5 Correct 202 ms 211888 KB Output is correct
6 Correct 197 ms 211888 KB Output is correct
7 Correct 199 ms 212000 KB Output is correct
8 Correct 203 ms 212000 KB Output is correct
9 Correct 202 ms 212000 KB Output is correct
10 Correct 188 ms 212000 KB Output is correct
11 Correct 184 ms 212000 KB Output is correct
12 Correct 182 ms 212000 KB Output is correct
13 Correct 199 ms 212000 KB Output is correct
14 Correct 208 ms 212068 KB Output is correct
15 Correct 196 ms 212072 KB Output is correct
16 Correct 198 ms 212076 KB Output is correct
17 Correct 194 ms 212076 KB Output is correct
18 Correct 195 ms 212076 KB Output is correct
19 Correct 193 ms 212076 KB Output is correct
20 Correct 204 ms 212076 KB Output is correct
21 Correct 206 ms 212076 KB Output is correct
22 Correct 205 ms 212108 KB Output is correct
23 Correct 221 ms 212108 KB Output is correct
24 Correct 207 ms 212108 KB Output is correct
25 Correct 187 ms 212108 KB Output is correct
26 Correct 188 ms 212108 KB Output is correct
27 Correct 192 ms 212108 KB Output is correct
28 Correct 211 ms 212108 KB Output is correct
29 Correct 200 ms 212108 KB Output is correct
30 Correct 186 ms 212108 KB Output is correct
31 Correct 204 ms 212108 KB Output is correct
32 Correct 208 ms 212108 KB Output is correct
33 Correct 193 ms 212108 KB Output is correct
34 Correct 189 ms 212108 KB Output is correct
35 Correct 206 ms 212108 KB Output is correct
36 Correct 221 ms 212108 KB Output is correct
37 Correct 181 ms 212108 KB Output is correct
38 Correct 195 ms 212108 KB Output is correct
39 Correct 213 ms 212108 KB Output is correct
40 Correct 201 ms 212108 KB Output is correct
41 Correct 200 ms 212108 KB Output is correct
42 Correct 196 ms 212108 KB Output is correct
43 Correct 198 ms 212108 KB Output is correct
44 Correct 207 ms 212108 KB Output is correct
45 Correct 211 ms 212108 KB Output is correct
46 Correct 200 ms 212108 KB Output is correct
47 Correct 203 ms 212108 KB Output is correct
48 Correct 202 ms 212108 KB Output is correct
49 Correct 197 ms 212108 KB Output is correct
50 Correct 187 ms 212108 KB Output is correct
51 Correct 181 ms 212108 KB Output is correct
52 Correct 195 ms 212108 KB Output is correct
53 Correct 202 ms 212108 KB Output is correct
54 Runtime error 204 ms 212108 KB Execution failed because the return code was nonzero
55 Halted 0 ms 0 KB -