oj.uz

Submission #66742

# Submission time Handle Problem Language Result Execution time Memory
66742 2018-08-12T08:37:28 Z cdemirer Dango Maker (JOI18_dango_maker) C++17
13 / 100
 646 ms 263168 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;
int mat[3000][3000];
vi touch[3000][3000];

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*3000/3;
int parent[ARRSIZE];
bool vis[ARRSIZE] = {0};
int dpi[ARRSIZE], dpe[ARRSIZE];

void dfs(int x) {
	vis[x] = true;
	for (int i = 0; i < edges[x].size(); i++) {
		int y = edges[x][i];
		if (y == parent[x]) continue;
		parent[y] = x;
		dfs(y);
	}
	dpi[x] = 1;
	for (int i = 0; i < edges[x].size(); i++) {
		int y = edges[x][i];
		if (y == parent[x]) continue;
		dpi[x] += dpe[y];
	}
	dpe[x] = 0;
	for (int i = 0; i < edges[x].size(); i++) {
		int y = edges[x][i];
		if (y == parent[x]) continue;
		dpe[x] += max(dpi[y], dpe[y]);
	}
}

int main(int argc, char **argv) {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	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);
			}
		}
	}
	
	//cerr << num_nodes << endl;
	int sum = 0;
	for (int i = 0; i < num_nodes; i++) {
		if (vis[i]) continue;
		parent[i] = -1;
		dfs(i);
		sum += max(dpi[i], dpe[i]);
		//cerr << "i am " << i << " i added " << max(dpi[i], dpe[i]) << endl;
	}
	cout << sum << endl;
	
	return 0;
}

Compilation message

dango_maker.cpp: In function 'void dfs(int)':
dango_maker.cpp:36:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < edges[x].size(); i++) {
                  ~~^~~~~~~~~~~~~~~~~
dango_maker.cpp:43:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < edges[x].size(); i++) {
                  ~~^~~~~~~~~~~~~~~~~
dango_maker.cpp:49:20: 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:74:24: 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:78:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for (int k = 0; k < touch[i][j+1].size(); k++) connect(x, touch[i][j+1][k]);
                      ~~^~~~~~~~~~~~~~~~~~~~~~
dango_maker.cpp:82:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for (int k = 0; k < touch[i][j+2].size(); k++) connect(x, touch[i][j+2][k]);
                      ~~^~~~~~~~~~~~~~~~~~~~~~
dango_maker.cpp:93:24: 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:97:24: 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:101:24: 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]);
                      ~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 237 ms 211772 KB Output is correct
2 Correct 203 ms 211772 KB Output is correct
3 Correct 206 ms 211832 KB Output is correct
4 Correct 181 ms 211872 KB Output is correct
5 Correct 188 ms 212000 KB Output is correct
6 Correct 212 ms 212044 KB Output is correct
7 Correct 192 ms 212112 KB Output is correct
8 Correct 217 ms 212112 KB Output is correct
9 Correct 211 ms 212112 KB Output is correct
10 Correct 208 ms 212112 KB Output is correct
11 Correct 216 ms 212112 KB Output is correct
12 Correct 205 ms 212136 KB Output is correct
13 Correct 235 ms 212160 KB Output is correct
14 Correct 179 ms 212180 KB Output is correct
15 Correct 178 ms 212180 KB Output is correct
16 Correct 212 ms 212220 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 237 ms 211772 KB Output is correct
2 Correct 203 ms 211772 KB Output is correct
3 Correct 206 ms 211832 KB Output is correct
4 Correct 181 ms 211872 KB Output is correct
5 Correct 188 ms 212000 KB Output is correct
6 Correct 212 ms 212044 KB Output is correct
7 Correct 192 ms 212112 KB Output is correct
8 Correct 217 ms 212112 KB Output is correct
9 Correct 211 ms 212112 KB Output is correct
10 Correct 208 ms 212112 KB Output is correct
11 Correct 216 ms 212112 KB Output is correct
12 Correct 205 ms 212136 KB Output is correct
13 Correct 235 ms 212160 KB Output is correct
14 Correct 179 ms 212180 KB Output is correct
15 Correct 178 ms 212180 KB Output is correct
16 Correct 212 ms 212220 KB Output is correct
17 Correct 204 ms 212256 KB Output is correct
18 Correct 184 ms 212256 KB Output is correct
19 Correct 197 ms 212256 KB Output is correct
20 Correct 201 ms 212256 KB Output is correct
21 Correct 198 ms 212256 KB Output is correct
22 Correct 180 ms 212256 KB Output is correct
23 Correct 227 ms 212256 KB Output is correct
24 Correct 235 ms 212256 KB Output is correct
25 Correct 218 ms 212256 KB Output is correct
26 Correct 184 ms 212256 KB Output is correct
27 Runtime error 646 ms 263168 KB Execution killed with signal 9 (could be triggered by violating memory limits)
28 Halted 0 ms 0 KB -

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 237 ms 211772 KB Output is correct
2 Correct 203 ms 211772 KB Output is correct
3 Correct 206 ms 211832 KB Output is correct
4 Correct 181 ms 211872 KB Output is correct
5 Correct 188 ms 212000 KB Output is correct
6 Correct 212 ms 212044 KB Output is correct
7 Correct 192 ms 212112 KB Output is correct
8 Correct 217 ms 212112 KB Output is correct
9 Correct 211 ms 212112 KB Output is correct
10 Correct 208 ms 212112 KB Output is correct
11 Correct 216 ms 212112 KB Output is correct
12 Correct 205 ms 212136 KB Output is correct
13 Correct 235 ms 212160 KB Output is correct
14 Correct 179 ms 212180 KB Output is correct
15 Correct 178 ms 212180 KB Output is correct
16 Correct 212 ms 212220 KB Output is correct
17 Correct 204 ms 212256 KB Output is correct
18 Correct 184 ms 212256 KB Output is correct
19 Correct 197 ms 212256 KB Output is correct
20 Correct 201 ms 212256 KB Output is correct
21 Correct 198 ms 212256 KB Output is correct
22 Correct 180 ms 212256 KB Output is correct
23 Correct 227 ms 212256 KB Output is correct
24 Correct 235 ms 212256 KB Output is correct
25 Correct 218 ms 212256 KB Output is correct
26 Correct 184 ms 212256 KB Output is correct
27 Runtime error 646 ms 263168 KB Execution killed with signal 9 (could be triggered by violating memory limits)
28 Halted 0 ms 0 KB -