Submission #310721

#TimeUsernameProblemLanguageResultExecution timeMemory
310721whaleeePainting Squares (IOI20_squares)C++14
0 / 100
574 ms772 KiB
#include <bits/stdc++.h>
#include "squares.h"
 
#define mp make_pair
#define mt make_tuple
#define fi first
#define se second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define forn(i, n) for (int i = 0; i < (int)(n); ++i)
#define for1(i, n) for (int i = 1; i <= (int)(n); ++i)
#define ford(i, n) for (int i = (int)(n) - 1; i >= 0; --i)
#define fore(i, a, b) for (int i = (int)(a); i <= (int)(b); ++i)
 
using namespace std;
 
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vpi;
typedef vector<vi> vvi;
typedef long long i64;
typedef vector<i64> vi64;
typedef vector<vi64> vvi64;
typedef pair<i64, i64> pi64;
typedef double ld;

vi labels_global(20000,0);

vi paint(int n) {
	forn(i,labels_global.size()) {
		labels_global[i] = 1;
	}
	vi labels(n + 1, 1);
    int k = 0;
    while ((pow(2,k)-1)+k < n) {
        k++;
    }
    vector<bool>visited(pow(2,k)+1, 0);
    int val = pow(2,k)-1;
    int sym;
	visited[val] = true;
	int i =0 ;
    while (i+k < n) {
        // cerr << "val start " << val << '\n';
		// val = val >> 1;
		val = (val << 1) % (int)pow(2,k);
        sym = 0;
		// cerr << "val now " << val << '\n';  
        if (visited[val]) {
			// cerr << "i am here \n";
            val += 1;
            sym = 1;
        }
        visited[val] = true;
		// cerr << "to " << i+k+1 << '\n';
		// cerr << i+k << " vs " << n << '\n';
		// assert(i+k < n);
        labels[i+k] = sym;
		labels_global[i+k] = sym;
		i++;
    }
    labels[n] = k;
	// cerr << "I AM OK\n";
	// forn(i,n) {
		// cerr << labels[i] << ' ';
	// }
	// cerr << '\n';
	return labels;
}

int find_location(int n, vi c) {
	// return 1;
	int ans;
	// cerr << "called\n";
	if (c[c.size()-1] == -1) {
		ans = n-c.size();
		ford(i,n) {
			if (c[i] == -1) {
				ans++;
			}
			else {
				return ans;
			}
		}
	}
	// cerr << "here\n";
	return search(begin(labels_global), end(labels_global), begin(c), end(c)) - labels_global.begin(); 
}
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