Submission #863397

#	Time	Username	Problem	Language	Result	Execution time	Memory
863397		vjudge1	Emacs (COCI20_emacs)	C++17	50 / 50	1 ms	604 KiB

emacs

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define fi first
#define se second
#define pb push_back
#define endl "\n"
#define int long long

using namespace std;

typedef tuple<int, int, int> iii;
typedef long long ll;
const int mod =998244353;

int n, m, ans;
char c[105][105];
bool vis[105][105];
void dfs(int i, int j){
	if(i<1 || i>n || j<1 || j>m || c[i][j]=='.' || vis[i][j])return;
	vis[i][j]=true;
	dfs(i-1, j);
	dfs(i+1, j);
	dfs(i, j+1);
	dfs(i, j-1);
}
int32_t main(){
	fast;
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cin>>c[i][j];
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			if(vis[i][j])continue;
			if(c[i][j]=='.')continue;
			ans++;
			dfs(i, j);
		}
	}
	cout<<ans<<endl;
}	

• Subtask 1: 50 / 50