Submission #205567

#	Time	Username	Problem	Language	Result	Execution time	Memory
205567		cheetose	Minerals (JOI19_minerals)	C++17	90 / 100	85 ms	2952 KiB

minerals

#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a));
#define MEM_1(a) memset((a),-1,sizeof(a));
#define ALL(a) a.begin(),a.end()
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<ld> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 42043;
ll POW(ll a, ll b, ll MMM = MOD) { ll ret = 1; for (; b; b >>= 1, a = (a*a) % MMM)if (b & 1)ret = (ret*a) % MMM; return ret; }
ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
ll lcm(ll a, ll b) { if (a == 0 || b == 0)return a + b; return a*(b / gcd(a, b)); }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };
int ddx[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 };

#include "minerals.h"
bool in[100000];
int pr;

void f(Vi &A,Vi &B)
{
	int n=A.size();
	if(n==1)
	{
		Answer(A[0],B[0]);
		return;
	}
	random_shuffle(ALL(B));
	int m=n/2;
	Vi Aa,Ab,Ba,Bb;
	bool ok=in[A[0]];
	fup(i,0,m-1,1)
	{
		int t=Query(A[i]);
		Aa.pb(A[i]);
		in[A[i]]^=1;
		pr=t;
	}
	fup(i,m,n-1,1)Ab.pb(A[i]);
	int i=0;
	while(Ba.size()<m && Bb.size()<n-m)
	{
		int t=Query(B[i]);
		if(ok)
		{
			if(t==pr)Bb.pb(B[i]);
			else Ba.pb(B[i]);
		}
		else
		{
			if(t==pr)Ba.pb(B[i]);
			else Bb.pb(B[i]);
		}
		in[B[i]]^=1;
		i++;
		pr=t;
	}
	while(Ba.size()<m)Ba.pb(B[i++]);
	while(Bb.size()<n-m)Bb.pb(B[i++]);
	f(Aa,Ba);f(Ab,Bb);
}
void Solve(int n){
	srand(time(NULL));
	Vi A,B;
	fup(i,1,2*n,1)
	{
		int t=Query(i);
		in[i]=1;
		if(t==pr)B.pb(i);
		else A.pb(i);
		pr=t;
	}
	f(A,B);
}

Compilation message (stderr)

minerals.cpp: In function 'void f(Vi&, Vi&)':
minerals.cpp:69:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(Ba.size()<m && Bb.size()<n-m)
        ~~~~~~~~~^~
minerals.cpp:69:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(Ba.size()<m && Bb.size()<n-m)
                       ~~~~~~~~~^~~~
minerals.cpp:86:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(Ba.size()<m)Ba.pb(B[i++]);
        ~~~~~~~~~^~
minerals.cpp:87:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(Bb.size()<n-m)Bb.pb(B[i++]);
        ~~~~~~~~~^~~~

• Subtask 1: 6 / 6
• Subtask 2: 25 / 25
• Subtask 3: 9 / 9
• Subtask 4: 30 / 30
• Subtask 5: 5 / 5
• Subtask 6: 5 / 5
• Subtask 7: 5 / 5
• Subtask 8: 5 / 5
• Subtask 9: 0 / 10