Submission #319446

#	Time	Username	Problem	Language	Result	Execution time	Memory
319446		ronnith	Emacs (COCI20_emacs)	C++14	50 / 50	1 ms	492 KiB

emacs

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#warning Check Integer OverFlow
#define ll long long
#define rep(i,a,b) for(int i=a;i<b;i++)
#define per(i,a,b) for(int i=a;i>=b;i--)
#define trav(a,b) for(auto a:b)
#define sz(a) a.size()
#define maxs(a,b) if(b>a)a=b
#define mins(a,b) if(b<a)a=b
#ifdef LOCAL 
	#define dbg(x) cerr<<"["<<#x<<":"<<x<<"] "
	#define dbg2(a,b) dbg(a);dbg(b)
	#define dbg3(a,b,c) dbg2(a,b);dbg(c)
	#define dln cerr << ln
#else
	#define dbg(x) 0
	#define dbg2(a,b) 0
	#define dbg3(a,b,c) 0
	#define dln 0
#endif
#define gcd(a,b) __gcd(a,b)
#define lcm(a,b) (((a)/(__gcd(a,b))) * b)
#define print(arr) for(auto it = arr.begin();it < arr.end();it ++){cout << *it << " ";}cout << ln;
#define all(a) (a).begin(), (a).end()
#define vi vector<int>
#define v vector
#define p pair
#define pii p<int,int>
#define pb push_back
#define mk make_pair
#define f first
#define s second
#define ln "\n"
typedef long double ld;
using namespace std;
using namespace __gnu_pbds;
ll modF=1e9+7;

template<class T> using iset = tree<
T,
null_type,
less<T>,
rb_tree_tag,
tree_order_statistics_node_update>;

/*OUTPUT

*/
int dx[4] = {1,-1,0,0};
int dy[4] = {0,0,1,-1};

int N,M;
char a[100][100];
int vis[100][100];

void ff(int i,int j){
	if(i < 0 or i >= N or j < 0 or j >= M)return;
	if(vis[i][j])return;
	if(a[i][j] != '*')return;
	vis[i][j] = 1;
	rep(k,0,4)ff(i + dx[k],j + dy[k]);
}

void solve(){
	cin >> N >> M;
	rep(i,0,N){
		rep(j,0,M){
			cin >> a[i][j];
		}
	}
	int ans = 0;
	rep(i,0,N){
		rep(j,0,M){
			if(a[i][j] == '*' and vis[i][j] == 0){
				ans ++;
				ff(i,j);
			}
		}
	}
	cout << ans << ln;
}

int main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int t = 1;
	// cin >> t;
	while(t --){
		solve();
	}
}

Compilation message (stderr)

emacs.cpp:4:2: warning: #warning Check Integer OverFlow [-Wcpp]
    4 | #warning Check Integer OverFlow
      |  ^~~~~~~

• Subtask 1: 50 / 50