Submission #767851

#	Time	Username	Problem	Language	Result	Execution time	Memory
767851		minhcool	Minerals (JOI19_minerals)	C++17	90 / 100	33 ms	5284 KiB

minerals

//#define local
#ifndef local
#include "minerals.h"
#endif
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
 
//#define int long long
#define fi first
#define se second
#define pb push_back
#define mp make_pair
 
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
const int N = 3e5 + 5;
 
const int oo = 1e18 + 7, mod = 1e9 + 7;
 
mt19937 rng(1);
 
int rnd(int l, int r){
	int temp = rng() % (r - l + 1);
	return abs(temp) + l;
}
 
vector<int> fi, se;
 
#define index indexx
int index[N];
 
bool in[N];

bool used[N];

int total[N][17];
 
void Solve(int N){
	int lst = 0;
	for(int i = 1; i <= 2 * N; i++){
		int temp = Query(i);
		in[i] = 1;
		if(temp == lst) se.pb(i);
		else fi.pb(i);
		lst = temp;
	}
	for(int i = 0; i < N; i++){
		int num = 0;
		for(int j = 0; j <= 15; j++){
			if(i & (1LL << j)) num += (1LL << j);
			total[num][j]++;
		}
	}
	bool temp = 1;
	shuffle(se.begin(), se.end(), default_random_engine(7405));
	for(int i = 0; i <= 15; i++){
		int num = 0;
		for(int j = 0; j < fi.size(); j++){
			bool temp1 = in[fi[j]], temp2 = (j & (1LL << i));
			if(i == 15 && temp1) continue;
			if(temp1 ^ temp2){
				num++;
				lst = Query(fi[j]);
				in[fi[j]] ^= 1;
			}
		}
	//	cout << i << " " << num << "\n";
		for(auto it : se){
			//if(i == 14 && (used[index[it] + (1LL << 14)])) continue;
			if(!total[index[it]][i]){
				index[it] += (1LL << i);
				continue;
			}
			if(!total[index[it] + (1LL << i)][i]){
				continue;
			}
			int temp = Query(it);
			if(lst == temp) index[it] += (1LL << i);
			total[index[it]][i]--;
			//if(i == 14 && (index[it] + (1LL << 15)) >= fi.size()) used[index[it]] = 1;
			//in[it] ^= 1;
			lst = temp;
		}
		//temp ^= 1;	
	}
	//for(auto it : se) cout << index[it] << " " << fi[index[it]] << "\n";
	for(auto it : se) Answer(fi[index[it]], it);
}
 
#ifdef local
void process(){
 
}
 
signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int t;
	cin >> t;
	while(t--) process();
}
#endif

Compilation message (stderr)

minerals.cpp:22:21: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   22 | const int oo = 1e18 + 7, mod = 1e9 + 7;
      |                ~~~~~^~~
minerals.cpp: In function 'void Solve(int)':
minerals.cpp:62:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |   for(int j = 0; j < fi.size(); j++){
      |                  ~~^~~~~~~~~~~
minerals.cpp:58:7: warning: unused variable 'temp' [-Wunused-variable]
   58 |  bool temp = 1;
      |       ^~~~

• 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