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Submission #443547

# Submission time Handle Problem Language Result Execution time Memory
443547 2021-07-10T18:01:13 Z penguinhacker Pohlepko (COCI16_pohlepko) C++14
80 / 80
 18 ms 12324 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ar array

const int mxN=2000;
int n, m;
string g[mxN], ans;
bool vis[mxN][mxN];

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> m;
	for (int i=0; i<n; ++i)
		cin >> g[i];
	vector<ar<int, 2>> q(1, {0, 0});
	while(q.size()) {
		ans+=g[q.front()[0]][q.front()[1]];
		int mn=69;
		vector<ar<int, 2>> nq;
		auto ck=[&](int i, int j) {
			if (i>=n||j>=m||vis[i][j])
				return;
			vis[i][j]=1;
			int cur=g[i][j]-'a';
			if (cur<mn) {
				mn=cur;
				nq={{i, j}};
			} else if (cur==mn)
				nq.push_back({i, j});
		};
		for (ar<int, 2> i : q) {
			ck(i[0]+1, i[1]);
			ck(i[0], i[1]+1);
		}
		swap(q, nq);
	}
	cout << ans;
	return 0;
}

Subtask #1
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 380 KB Output is correct
2 Correct 1 ms 1356 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 1548 KB Output is correct
7 Correct 5 ms 5708 KB Output is correct
8 Correct 14 ms 12324 KB Output is correct
9 Correct 1 ms 516 KB Output is correct
10 Correct 1 ms 844 KB Output is correct
11 Correct 1 ms 844 KB Output is correct
12 Correct 3 ms 3020 KB Output is correct
13 Correct 4 ms 4620 KB Output is correct
14 Correct 18 ms 12324 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 14 ms 6476 KB Output is correct