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10026.cpp
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10026.cpp
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#include<iostream>
#include<utility>
#include<algorithm>
#include<queue>
#include<string>
using namespace std;
typedef pair<int, int> pii;
int N;
char map[100][100];
bool visited[100][100];
int dx[4] = { 1,0,-1,0 };
int dy[4] = { 0,1,0,-1 };
void init() {
for (int y = 0; y < N; y++) {
for (int x = 0; x < N; x++) {
visited[y][x] = false;
}
}
}
void nbfs(int a, int b) {
char which = map[b][a];
queue<pii> q;
q.push(pii(a, b));
visited[b][a] = true;
while (!q.empty()) {
pii cur = q.front();
q.pop();
int copyx = cur.first;
int copyy = cur.second;
for (int k = 0; k < 4; k++) {
int x = copyx + dx[k];
int y = copyy + dy[k];
if (!(x >= 0 && x < N && y >= 0 && y < N)) continue;
if (!visited[y][x] && map[y][x] == which) {
q.push(pii(x, y));
visited[y][x] = true;
}
}
}
}
void rbfs(int a, int b) {
char which = map[b][a];
queue<pii> q;
q.push(pii(a, b));
visited[b][a] = true;
while (!q.empty()) {
pii cur = q.front();
q.pop();
int copyx = cur.first;
int copyy = cur.second;
for (int k = 0; k < 4; k++) {
int x = copyx + dx[k];
int y = copyy + dy[k];
if (!(x >= 0 && x < N && y >= 0 && y < N)) continue;
if (which == 'B') {
if (!visited[y][x] && map[y][x] == which) {
q.push(pii(x, y));
visited[y][x] = true;
}
}
else {
if (!visited[y][x]) {
if (map[y][x] == 'R' || map[y][x] == 'G') {
q.push(pii(x, y));
visited[y][x] = true;
}
}
}
}
}
}
int main() {
cin >> N;
for (int y = 0; y < N; y++) {
string s;
cin >> s;
for (int a = 0; a < N; a++) {
map[y][a] = s[a];
}
}
int ctr = 0;
for (int y = 0; y < N; y++) {
for (int x = 0; x < N; x++) {
if (!visited[y][x]) {
nbfs(x, y);
ctr++;
}
}
}
cout << ctr << " ";
init();
//fill(visited, visited + 100, false);
ctr = 0;
for (int y = 0; y < N; y++) {
for (int x = 0; x < N; x++) {
if (!visited[y][x]) {
rbfs(x, y);
ctr++;
}
}
}
cout << ctr;
}