Submission #869641

#	Time	Username	Problem	Language	Result	Execution time	Memory
869641		willychan	Super Dango Maker (JOI22_dango3)	C++17	2 / 100	739 ms	1048576 KiB

dango3

#include "dango3.h"

#include <vector>
#include<random>
#include<algorithm>
#include<iostream>
#include<cassert>
using namespace std;
namespace {

int variable_example = 1;
int n,m;
}  // namespace

void ans(vector<int> pos){
	if(pos.size()==n){Answer(pos);return;}
	random_shuffle(pos.begin(),pos.end());
	vector<int> l;
	vector<int> r;
	vector<bool> nin(pos.size(),0);
	int k = (pos.size()/n)/2;
	int cnt = 0;
	for(int i=0;i<pos.size();i++){
		if(cnt==k*n) break;
		vector<int> q;
		nin[i]=1;
		for(int j=0;j<pos.size();j++){
			if(!nin[j]) q.push_back(pos[j]);
		}
		if(Query(q)<k) nin[i]=0;
		else{
			cnt++;
		}
	}
	for(int i=0;i<pos.size();i++){
		if(nin[i]) l.push_back(pos[i]);
		else r.push_back(pos[i]);
	}
	ans(l);
	ans(r);
}

void Solve(int N, int M) {
	n = N;m = M;
	vector<int> pos;
	for(int i=1;i<=N*M;i++){
		pos.push_back(i);
	}
	ans(pos);
}

Compilation message (stderr)

dango3.cpp: In function 'void ans(std::vector<int>)':
dango3.cpp:16:15: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   16 |  if(pos.size()==n){Answer(pos);return;}
      |     ~~~~~~~~~~^~~
dango3.cpp:23:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |  for(int i=0;i<pos.size();i++){
      |              ~^~~~~~~~~~~
dango3.cpp:27:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   for(int j=0;j<pos.size();j++){
      |               ~^~~~~~~~~~~
dango3.cpp:35:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |  for(int i=0;i<pos.size();i++){
      |              ~^~~~~~~~~~~
dango3.cpp: At global scope:
dango3.cpp:11:5: warning: '{anonymous}::variable_example' defined but not used [-Wunused-variable]
   11 | int variable_example = 1;
      |     ^~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 0 / 5
• Subtask 3: 0 / 15
• Subtask 4: 0 / 78