Submission #901318

#	Time	Username	Problem	Language	Result	Execution time	Memory
901318		Darren0724	Minerals (JOI19_minerals)	C++17	75 / 100	24 ms	3232 KiB

minerals

#include "minerals.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
//Query(int)
//Answer(int,int)
int last=0;
int ask(int k){
	int p = Query(k);
	int tmp = p - last;
	last = p;
	return tmp; 
}
void dc(vector<int> &a,vector<int> &b,int t){
	int n=a.size();
	if(n==1){
		Answer(a[0],b[0]);
		return;
	}
	int r=__lg(n-1);
	int m=1<<r;
	if(t>0){
		for(int i=m;i<n;i++){
			ask(a[i]);
		}
	}
	else{
		for(int i=0;i<m;i++){
			ask(a[i]);
		}
	}
	vector<int> a1,a2,b1,b2;
	for(int i=0;i<m;i++){
		a1.push_back(a[i]);
	}
	for(int i=m;i<n;i++){
		a2.push_back(a[i]);
	}
	for(int i=0;i<n;i++){
		if(ask(b[i])==0){
			b1.push_back(b[i]);
		}
		else{
			b2.push_back(b[i]);
		}
	}
	if(t==0){
		dc(a1,b1,2);
		dc(b2,a2,1);
	}
	if(t==1){
		dc(a1,b1,2);
		dc(b2,a2,1);
	}
	if(t==2){
		dc(a1,b1,1);
		dc(a2,b2,0);
	}	
}
void Solve(int n) {
	vector<int> a,b;
	for(int i=1;i<=n*2;i++){
		if(ask(i)==0){
			b.push_back(i);
		}
		else{
			a.push_back(i);
		}
	}
	dc(a,b,2);
}
/*
6
1 2
3 4
5 6
8 7
10 9
11 12
*/

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