Submission #65294

#	Time	Username	Problem	Language	Result	Execution time	Memory
65294		mhnd	Unscrambling a Messy Bug (IOI16_messy)	C++17	0 / 100	2 ms	384 KiB

messy

#include "messy.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
const int N = 3e5+50;
const ll oo = 1e18;
const ll mod = 1e9+7;

int n;
vector<int> ans;

void add(int l,int r){
	if (l + 1 == r) return;
  int m = l + r >> 1;
  string s = "";
  for (int i = 0; i < n; ++i) {
    s += '1';
  }
  for (int i = l; i < r; ++i) {
    s[i] = '0';
  }
  for (int i = l; i < m; ++i) {
    s[i] = '1';
    add_element(s);
    s[i] = '0';
  }
  add(l, m);
  add(m, r);
}


void ask(int l,int r,string s){
	if(l > r){
		for(int i=0;i<n;i++)
			if(s[i] == '0'){
				ans[i] = l;
				return;
			}
	}
	string x=s,y="";
	for(int i=0;i<n;i++)y+='1';
	for(int i=0;i<n;i++){
		if(s[i] == '0'){
			s[i]='1';
			if(check_element(s)){
				x[i] = '1';
				y[i] = '0';
			}
			s[i]='0';
		}
	}
	int md = (l+r)/2;
	ask(l,md,y);
	ask(md,r,x);
}

vector<int> restore_permutation(int N, int w, int r) {
	int n = N;
	add(0,n);
	compile_set();
	ans.resize(n);
	string a = "";
	for(int i=0;i<n;i++)a += '0';
	ask(0,n,a);
	return ans;
}

Compilation message (stderr)

messy.cpp: In function 'void add(int, int)':
messy.cpp:17:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = l + r >> 1;
           ~~^~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 18
• Subtask 3: 0 / 11
• Subtask 4: 0 / 21
• Subtask 5: 0 / 30