oj.uz

Submission #22782

# Submission time Handle Problem Language Result Execution time Memory
22782 2017-04-30T07:26:55 Z 퍼플달고싶다(#990, smu201111192, pce913, cokcjswo) Young Zebra (KRIII5_YZ) C++
7 / 7
 426 ms 40092 KB 
#include <bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define SIZE 31600000
#define BC 50
#define BS 5000
#define MOD 1000000007LL
#define MAXV 555
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3fLL
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef vector<vector<long long> > mat;

int n,m;
char str[444][444];
bool bd[1222][1222];
bool visited[1222][1222];
int sz[1222][1222];
pair<int, int> p[1222][1222];
int dy[4] = {-1,0,1,0}, dx[4] = {0,1,0,-1};

pair<int, int> find(pair<int, int> u) {
	if(p[u.fi][u.se] == u)	return u;
	return p[u.fi][u.se] = find(p[u.fi][u.se]);
}

void merge(pair<int, int> u, pair<int, int> v) {
	u = find(u), v = find(v);
	if(u == v)	return;
	p[u.fi][u.se] = v;
	sz[v.fi][v.se] += sz[u.fi][u.se];
}

bool ok(int y, int x) {return y>=0 && y<3*n && x>=0 && x<3*m;}

void bfs(int y, int x) {
	queue<pair<int, int > > q;
	q.push({y,x});
	visited[y][x] = 1;
	while(!q.empty()) {
		int hy = q.front().fi, hx = q.front().se;
		// printf("here %d %d\n",hy,hx);
		q.pop();
		for(int i=0;i<4;i++) {
			int ny = hy + dy[i], nx = hx + dx[i];
			if(ny < 0)	ny += 3*n;
			if(nx < 0)	nx += 3*m;
			if(ny >= 3*n)	ny -= 3*n;
			if(nx >= 3*m)	nx -= 3*m;
			if(ok(ny,nx) && visited[ny][nx] == 0 && (bd[y][x] == bd[ny][nx])) {
				merge({y,x}, {ny,nx}), q.push({ny,nx}), visited[ny][nx] = 1;
			}
		}
	}
}

int ans[444][444];

int main () {
	for(int i=0;i<1222;i++)	for(int j=0;j<1222;j++)	p[i][j] = {i,j}, sz[i][j] = 1;
	scanf("%d%d",&n,&m);
	for(int i=0;i<n;i++)	scanf("%s",str[i]);
	for(int yc=0;yc<3;yc++) 
		for(int xc=0;xc<3;xc++) 
			for(int i=0;i<n;i++) 
				for(int j=0;j<m;j++) 
					bd[yc*n+i][xc*m+j] = str[i][j] == 'B' ? 1 : 0;


	for(int i=0;i<n;i++) {
		for(int j=0;j<m;j++) {
			int y = n+i, x = m+j;
			if(visited[y][x] == 0)		bfs(y,x);
			pair<int, int> root = find({y,x});
			ans[i][j] = sz[root.fi][root.se];
		}
	}

	for(int i=0;i<n;i++) {
		for(int j=0;j<m;j++) {
			pair<int, int> chk = find({i+n,j+m});
			for(int yc=0;yc<3;yc++) {
				for(int xc=0;xc<3;xc++) {
					if(yc == 1 && xc == 1)	continue;
					pair<int, int> chk2 = find({i+yc*n,j+xc*m});
					if(chk == chk2)	ans[i][j] = -1;
				}
			}
			printf("%d ",ans[i][j]);
		}
		printf("\n");
	}

	// for(int i=0;i<100;i++) {
	// 	for(int j=0;j<100;j++)	printf("%d ",sz[i][j]);
	// 	printf("\n");
	// }
}

Compilation message

YZ.cpp: In function 'void bfs(int, int)':
YZ.cpp:42:9: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  q.push({y,x});
         ^
YZ.cpp:42:14: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  q.push({y,x});
              ^
YZ.cpp:55:11: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
     merge({y,x}, {ny,nx}), q.push({ny,nx}), visited[ny][nx] = 1;
           ^
YZ.cpp:55:18: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
     merge({y,x}, {ny,nx}), q.push({ny,nx}), visited[ny][nx] = 1;
                  ^
YZ.cpp:55:35: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
     merge({y,x}, {ny,nx}), q.push({ny,nx}), visited[ny][nx] = 1;
                                   ^
YZ.cpp:55:42: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
     merge({y,x}, {ny,nx}), q.push({ny,nx}), visited[ny][nx] = 1;
                                          ^
YZ.cpp: In function 'int main()':
YZ.cpp:64:64: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  for(int i=0;i<1222;i++) for(int j=0;j<1222;j++) p[i][j] = {i,j}, sz[i][j] = 1;
                                                                ^
YZ.cpp:64:58: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  for(int i=0;i<1222;i++) for(int j=0;j<1222;j++) p[i][j] = {i,j}, sz[i][j] = 1;
                                                          ^
YZ.cpp:78:31: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
    pair<int, int> root = find({y,x});
                               ^
YZ.cpp:85:30: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
    pair<int, int> chk = find({i+n,j+m});
                              ^
YZ.cpp:89:33: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
      pair<int, int> chk2 = find({i+yc*n,j+xc*m});
                                 ^
YZ.cpp:65:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^
YZ.cpp:66:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<n;i++) scanf("%s",str[i]);
                                         ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 209 ms 29796 KB Output is correct
2 Correct 159 ms 38524 KB Output is correct
3 Correct 169 ms 28252 KB Output is correct
4 Correct 136 ms 26216 KB Output is correct
5 Correct 106 ms 25336 KB Output is correct
6 Correct 79 ms 24224 KB Output is correct
7 Correct 413 ms 28876 KB Output is correct
8 Correct 189 ms 40092 KB Output is correct
9 Correct 376 ms 40076 KB Output is correct
10 Correct 149 ms 25164 KB Output is correct
11 Correct 103 ms 25768 KB Output is correct
12 Correct 109 ms 25764 KB Output is correct
13 Correct 273 ms 27476 KB Output is correct
14 Correct 149 ms 27644 KB Output is correct
15 Correct 313 ms 36396 KB Output is correct
16 Correct 169 ms 24924 KB Output is correct
17 Correct 146 ms 27072 KB Output is correct
18 Correct 69 ms 26992 KB Output is correct
19 Correct 66 ms 23400 KB Output is correct
20 Correct 266 ms 40028 KB Output is correct
21 Correct 363 ms 28208 KB Output is correct
22 Correct 426 ms 28100 KB Output is correct
23 Correct 253 ms 38496 KB Output is correct
24 Correct 206 ms 33756 KB Output is correct
25 Correct 239 ms 31580 KB Output is correct
26 Correct 9 ms 23400 KB Output is correct
27 Correct 9 ms 23400 KB Output is correct
28 Correct 13 ms 23668 KB Output is correct
29 Correct 16 ms 23668 KB Output is correct
30 Correct 9 ms 23400 KB Output is correct
31 Correct 9 ms 23400 KB Output is correct
32 Correct 9 ms 23400 KB Output is correct
33 Correct 6 ms 23400 KB Output is correct
34 Correct 6 ms 23400 KB Output is correct
35 Correct 6 ms 23400 KB Output is correct
36 Correct 13 ms 24720 KB Output is correct
37 Correct 19 ms 24500 KB Output is correct
38 Correct 13 ms 23400 KB Output is correct
39 Correct 19 ms 24496 KB Output is correct
40 Correct 16 ms 24720 KB Output is correct