Submission #827649

#	Time	Username	Problem	Language	Result	Execution time	Memory
827649		DarkMatter	Emacs (COCI20_emacs)	C++17	50 / 50	1 ms	384 KiB

emacs

#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
#include<unordered_map>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int, int>pi;
typedef pair<ll, ll>pl;
typedef vector<pi>vpi;
typedef vector<pl>vpl;
typedef vector<vi> vvi;
typedef vector<vl> vvl;
typedef vector<string> vs;
typedef vector<bool> vb;
const long double PI = acos(-1);
const ll oo = 1e18;
const int MOD = 1e9 + 7;
const int N = 2e5 + 7;
#define endl '\n'
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define read(v) for (auto& it : v) scanf("%d", &it);
#define readL(v) for (auto& it : v) scanf("%lld", &it);
#define print(v) for (auto it : v) printf("%d ", it); puts("");
#define printL(v) for (auto it : v) printf("%lld ", it); puts("");
int dr[] = { -1,0 }, dc[] = { 0,-1 };
void solve() {
	int n, m, ans = 0;
	scanf("%d %d", &n, &m);
	vs v(n);
	for (auto& it : v)
		cin >> it;
	vector<vpi> p(n, vpi(m, { -1 ,-1 }));
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			if (v[i][j] == '.')
				continue;
			bool ok = false;
			for (int d = 0; d < 2; d++) {
				int nr = i + dr[d], nc = j + dc[d];
				if (nr < 0 || nc < 0 || v[nr][nc] == '.')
					continue;
				p[i][j] = p[nr][nc];
				ok = true;
			}
			if (!ok)
				p[i][j] = { i,j }, ans++;
		}
	}
	printf("%d\n", ans);
}
int t = 1;
int main() {
//#ifndef ONLINE_JUDGE
//	freopen("input.txt", "r", stdin);
//#endif
	//scanf("%d", &t);
	while (t--) solve();
}

Compilation message (stderr)

emacs.cpp: In function 'void solve()':
emacs.cpp:31:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |  scanf("%d %d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 50 / 50