oj.uz

Submission #66744

# Submission time Handle Problem Language Result Execution time Memory
66744 2018-08-12T08:39:13 Z cdemirer Dango Maker (JOI18_dango_maker) C++17
13 / 100
 558 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;
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 213 ms 211704 KB Output is correct
2 Correct 204 ms 211816 KB Output is correct
3 Correct 197 ms 211884 KB Output is correct
4 Correct 182 ms 211884 KB Output is correct
5 Correct 181 ms 211884 KB Output is correct
6 Correct 180 ms 211884 KB Output is correct
7 Correct 190 ms 211936 KB Output is correct
8 Correct 206 ms 211936 KB Output is correct
9 Correct 194 ms 212036 KB Output is correct
10 Correct 204 ms 212044 KB Output is correct
11 Correct 181 ms 212048 KB Output is correct
12 Correct 199 ms 212108 KB Output is correct
13 Correct 189 ms 212108 KB Output is correct
14 Correct 206 ms 212108 KB Output is correct
15 Correct 240 ms 212108 KB Output is correct
16 Correct 235 ms 212212 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 213 ms 211704 KB Output is correct
2 Correct 204 ms 211816 KB Output is correct
3 Correct 197 ms 211884 KB Output is correct
4 Correct 182 ms 211884 KB Output is correct
5 Correct 181 ms 211884 KB Output is correct
6 Correct 180 ms 211884 KB Output is correct
7 Correct 190 ms 211936 KB Output is correct
8 Correct 206 ms 211936 KB Output is correct
9 Correct 194 ms 212036 KB Output is correct
10 Correct 204 ms 212044 KB Output is correct
11 Correct 181 ms 212048 KB Output is correct
12 Correct 199 ms 212108 KB Output is correct
13 Correct 189 ms 212108 KB Output is correct
14 Correct 206 ms 212108 KB Output is correct
15 Correct 240 ms 212108 KB Output is correct
16 Correct 235 ms 212212 KB Output is correct
17 Correct 194 ms 212212 KB Output is correct
18 Correct 178 ms 212212 KB Output is correct
19 Correct 183 ms 212212 KB Output is correct
20 Correct 213 ms 212212 KB Output is correct
21 Correct 198 ms 212212 KB Output is correct
22 Correct 188 ms 212212 KB Output is correct
23 Correct 204 ms 212212 KB Output is correct
24 Correct 198 ms 212224 KB Output is correct
25 Correct 215 ms 212224 KB Output is correct
26 Correct 185 ms 212224 KB Output is correct
27 Runtime error 558 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 213 ms 211704 KB Output is correct
2 Correct 204 ms 211816 KB Output is correct
3 Correct 197 ms 211884 KB Output is correct
4 Correct 182 ms 211884 KB Output is correct
5 Correct 181 ms 211884 KB Output is correct
6 Correct 180 ms 211884 KB Output is correct
7 Correct 190 ms 211936 KB Output is correct
8 Correct 206 ms 211936 KB Output is correct
9 Correct 194 ms 212036 KB Output is correct
10 Correct 204 ms 212044 KB Output is correct
11 Correct 181 ms 212048 KB Output is correct
12 Correct 199 ms 212108 KB Output is correct
13 Correct 189 ms 212108 KB Output is correct
14 Correct 206 ms 212108 KB Output is correct
15 Correct 240 ms 212108 KB Output is correct
16 Correct 235 ms 212212 KB Output is correct
17 Correct 194 ms 212212 KB Output is correct
18 Correct 178 ms 212212 KB Output is correct
19 Correct 183 ms 212212 KB Output is correct
20 Correct 213 ms 212212 KB Output is correct
21 Correct 198 ms 212212 KB Output is correct
22 Correct 188 ms 212212 KB Output is correct
23 Correct 204 ms 212212 KB Output is correct
24 Correct 198 ms 212224 KB Output is correct
25 Correct 215 ms 212224 KB Output is correct
26 Correct 185 ms 212224 KB Output is correct
27 Runtime error 558 ms 263168 KB Execution killed with signal 9 (could be triggered by violating memory limits)
28 Halted 0 ms 0 KB -