Submission #361608

#	Time	Username	Problem	Language	Result	Execution time	Memory
361608		saarang123	Paint By Numbers (IOI16_paint)	C++17	10 / 100	159 ms	492 KiB

paint

#include <bits/stdc++.h>
using namespace std;

string solve_puzzle(string s, vector<int> c) {
	int n = s.size(), k = c.size();
	vector<bool> white(n, true), black(n, true);
	for(int mask = 0; mask < (1 << n); mask++) {
		vector<bool> puzzle(n);
		for(int i = 0; i < n; i++) puzzle[i] = (mask >> i & 1);
		int ptr = 0;
		bool flag = 1;
		for(int i = 0, j = 0; i < n && j < n && ptr < k; i = j) {
			while(j < n && puzzle[i] == puzzle[j]) j++;
			if(puzzle[i] == 1) {
				int cnt = j - i;
				if(cnt == c[ptr]) ptr++;
				else {
					flag = 0; break;
				}
			}
		}
		if(ptr != k) continue;
		if(!flag) continue;
		for(int i = 0; i < n; i++) {
			white[i] = white[i] && (puzzle[i] == 0);
			black[i] = black[i] && (puzzle[i]);
		}
	}
	string ans = "";
	for(int i = 0; i < n; i++) {
		if(black[i]) ans += "X";
		else if(white[i]) ans += "_";
		else ans += "?";
	}
	return ans;
}

• Subtask 1: 7 / 7
• Subtask 2: 3 / 3
• Subtask 3: 0 / 22
• Subtask 4: 0 / 27
• Subtask 5: 0 / 21
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10