Submission #1077361

#	Time	Username	Problem	Language	Result	Execution time	Memory
1077361		thelegendary08	Broken Device (JOI17_broken_device)	C++14	45 / 100	30 ms	3036 KiB

Anna

#include "Annalib.h"
#include<bits/stdc++.h>
#define f0r(i,n) for(int i = 0; i<n;i++)
#define pb push_back
#define vb vector<bool>
#define vi vector<int>
using namespace std;
void Anna( int n, long long x, int k, int p[] ){
	vector<bool>broken(n);
	f0r(i, k){
		broken[p[i]] = 1;
	}
	vb ret(n, 0);
	vb v;
	f0r(i, 60){
		v.pb((1LL<<i) & x);
	}
	//for(auto u : v)cout<<u<<' ';
	//cout<<'\n';
	int i = 0;
	int ptr = 0;
	while(i < n-3 && ptr < 60){
		if(!broken[i] && !broken[i+1] && !broken[i+2] && !broken[i+3]){
			ret[i] = 1;
			ret[i+1] = v[ptr];
			ret[i+2] = v[ptr + 1];
			ret[i+3] = v[ptr + 2];
			ptr += 3;
			i += 4;
		}
		else i++;
	}
	f0r(i, n){
		Set(i, ret[i]);
	}
}

Bruno

#include "Brunolib.h"
#include<bits/stdc++.h>
#define f0r(i,n) for(int i = 0; i<n;i++)
#define pb push_back
#define vb vector<bool>
#define vi vector<int>
using namespace std;
long long Bruno( int n, int A[] ){
	//for(int i = 0; i<N;i++)cout<<A[i]<<' ';
	//cout<<'\n';
  	long long ret = 0;
  	vb ans;
  	int ptr = 0;
  	while(ptr < n - 2){
  		if(A[ptr] == 1){
  			ans.pb(A[ptr + 1]);
  			ans.pb(A[ptr + 2]);
  			ans.pb(A[ptr + 3]);
  			ptr += 4; 
  		}
  		else ptr++;
  	}
  	f0r(i, ans.size()){
  		ret += ans[i] * (1LL << i);
  	}
  	//cout<<ret;
  	return ret;
}

Compilation message (stderr)

Bruno.cpp: In function 'long long int Bruno(int, int*)':
Bruno.cpp:3:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    3 | #define f0r(i,n) for(int i = 0; i<n;i++)
......
   23 |    f0r(i, ans.size()){
      |        ~~~~~~~~~~~~~              
Bruno.cpp:23:4: note: in expansion of macro 'f0r'
   23 |    f0r(i, ans.size()){
      |    ^~~

• Subtask 1: 45 / 100