Submission #975952

#	Time	Username	Problem	Language	Result	Execution time	Memory
975952		phoenix0423	Mars (APIO22_mars)	C++17	6 / 100	11 ms	4552 KiB

mars

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#include "mars.h"
int dx[] = {0, 1, 0, -1};
int dy[] = {1, 0, -1, 0};

string solve(string s, int n){
	auto inbound = [&](int x, int y) -> bool {
		return x >= 0 && y >= 0 && x < 2 * n + 1 && y < 2 * n + 1;
	};
	int ans = 0;
	vector<vector<int>> vis(10, vector<int>(10));
	auto dfs = [&](auto dfs, int x, int y) -> void {
		for(int d = 0; d < 4; d++){
			int xx = x + dx[d], yy = y + dy[d];
			if(!inbound(xx, yy) || s[xx * 10 + yy] == '0' || vis[xx][yy]) continue;
			vis[xx][yy] = 1;
			dfs(dfs, xx, yy);
		}
	};
	for(int i = 0; i < 10; i++){
		for(int j = 0; j < 10; j++){
			if(s[i * 10 + j] == '0' || vis[i][j]) continue;
			ans++;
			vis[i][j] = 1;
			dfs(dfs, i, j);
		}
	}
	string ret = "";
	for(int i = 0; i < 30; i++){
		if(ans & (1 << i)) ret += '1';
		else ret += '0';
	}
	for(int i = 0; i < 70; i++) ret += '0';
	return ret;
}

std::string process(std::vector <std::vector<std::string>> a, int i, int j, int k, int n){
	if(n <= 4){
		vector<vector<int>> st(10, vector<int>(10));
		for(int dx = 0; dx < 3; dx++){
			for(int dy = 0; dy < 3; dy++){
				for(int c = 0; c < 10; c++){
					for(int d = 0; d < 10; d++){
						if(i + dx + c > 2 * n || j + dy + d > 2 * n) break;
						if(a[dx][dy][c * 10 + d] == '1') st[dx + c][dy + d] = 1;
					}
				}
			}
		}
		a[i][j] = "";
		for(int c = 0; c < 10; c++){
			for(int d = 0; d < 10; d++){
				if(st[c][d]) a[i][j] += '1';
				else a[i][j] += '0';
			}
		}
		if(i == 0 && j == 0 && k == n - 1){
			return solve(a[0][0], n);
		}	
		return a[i][j];
	}
}

Compilation message (stderr)

mars.cpp: In function 'std::string process(std::vector<std::vector<std::__cxx11::basic_string<char> > >, int, int, int, int)':
mars.cpp:70:1: warning: control reaches end of non-void function [-Wreturn-type]
   70 | }
      | ^

• Subtask 1: 6 / 6
• Subtask 2: 0 / 8
• Subtask 3: 0 / 7
• Subtask 4: 0 / 8
• Subtask 5: 0 / 7
• Subtask 6: 0 / 8
• Subtask 7: 0 / 10
• Subtask 8: 0 / 24
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11