Submission #561585

#	Time	Username	Problem	Language	Result	Execution time	Memory
561585		amunduzbaev	Broken Device (JOI17_broken_device)	C++17	0 / 100	2 ms	524 KiB

Anna

#include "Annalib.h"
#include "bits/stdc++.h"
using namespace std;

void Anna(int n, long long x, int k, int p[]){
	vector<int> used(n);
	for(int i=0;i<k;i++) used[p[i]] = 1;
	const int M = 4;
	vector<int> bit(M);
	int t = 0;
	for(int i=2;i<n && t < M;i++){
		if(!used[i] && !used[i-1]){
			used[i] = used[i-1] = 1;
			bit[t++] = i;
		}
	}
	
	vector<int> pos;
	for(int i=0;i<n;){
		if(used[i]) { i++; continue; }
		int j = i;
		while(j < n && !used[j]) j++;
		pos.push_back(j - i);
		i = j;
	}
	int b = -1;
	for(int i=1;i<=(1 << M);i++){
		int cnt = 0;
		for(auto x : pos){
			cnt += (x / (i + 1));
		}
		
		if(cnt >= 60 / i){
			b = i;
		}
	}
	if(!(~b)){
		for(int i=0;i<n;i++) Set(i, 0);
		//~ assert(false);
		return;
	}
	
	for(int i=0;i<k;i++) Set(p[i], 0);
	int v = b - 1;
	for(int i=0;i<M;i++){
		Set(bit[i] - 1, 1);
		Set(bit[i], v & 1);
		v >>= 1;
	}
	int l = 0;
	for(int i=0;i<60;i+=b){
		while(l<n){
			int ok = 1;
			for(int k=0;k<=b;k++){
				if(l < k) ok = 0;
				else if(used[l - k]) ok = 0;
			}
			
			if(ok) break;
			l++;
		}
		
		//~ assert(l<n);
		for(int j=b - 1;~j;j--){
			Set(l - j, x & 1);
			used[l - j] = 1;
			x >>= 1;
		}
		
		used[l - b] = 1;
		Set(l - b, 1);
	}
	
	for(int i=0;i<n;i++){
		if(!used[i]){
			Set(i, 0);
		}
	}
}

/*

2
150 14 1
2
150 9 2
0 1

*/

Bruno

#include "Brunolib.h"
#include "bits/stdc++.h"
using namespace std;

long long Bruno( int n, int a[] ){
	int b = 1, l = -1;
	const int M = 4;
	int val = 0, t = 0;
	for(int i=0;i<n && t < M;i++){
		if(!a[i]) continue;
		if(a[i]){
			val |= (a[i + 1] << t);
			t++, i++, l = i + 1;
		}
	}
	
	if(l == -1) return 0ll;
	b = val + 1;
	int bit = 0;
	long long x = 0;
	for(int i=l;i<n;i++){
		if(a[i]){
			for(int j=i+1;j<=i+b && bit < 60;j++){
				x |= ((a[j] * 1ll) << bit);
				bit++;
			}
			
			i += b;
		}
	}
	
	//~ cout<<x<<endl;
	return x;
}

• Subtask 1: 0 / 100