Submission #204334

#	Time	Username	Problem	Language	Result	Execution time	Memory
204334		cheetose	Minerals (JOI19_minerals)	C++17	0 / 100	5 ms	376 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 987654321
#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 = 1000000007;
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 getans[100000];
int a[100000];
void Solve(int N){
	srand(time(NULL));
	int findcnt=0;
	int i=0,j=0;
	int pr=0;
	fup(k,0,2*N-1,1)a[k]=k+1;
	random_shuffle(a,a+2*N);
	fup(k,0,2*N-1,1)assert(1<=a[k] && a[k]<=2*N);
	while(findcnt<N)
	{
		while(getans[j])j=(j+1)%(2*N);
		int x=Query(a[j]);
		if(x==pr)
		{
			pr=x;
			while(1)
			{
				while(getans[i])i=(i+1)%(2*N);
				int y=Query(a[i]);
				if(y==pr)
				{
					findcnt++;
					Answer(a[i],a[j]);
					getans[i]=getans[j]=1;
					pr=y;
					break;
				}
				else pr=y;
				i++;
			}
		}
		else pr=x;
		j++;
	}
}/*
int main(){
	Solve(5);
}*/

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