Submission #742474

#	Time	Username	Problem	Language	Result	Execution time	Memory
742474		penguin133	The Collection Game (BOI21_swaps)	C++17	15 / 100	65 ms	1440 KiB

swaps

#include <bits/stdc++.h>
using namespace std;
 
//#define int long long
#include "swaps.h"
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
 
int cnt[505], vis[505], stuf[505][505], ans[505];
bool cmp(int a, int b){
	return cnt[a] > cnt[b];
}
void solve(int N, int V) {
   for(int i=1;i<N;i++){
	   vector <pi> bru;
	   for(int j=1;j<=N;j++)vis[j] = 0;
	   for(int j=1;j<=N;j++){
		   int tmp = j + i;
		   if(tmp > N)tmp -= N;
		   if(!stuf[j][tmp] && !vis[j] && !vis[tmp]){
			   schedule(j, tmp);
			   vis[j] = 1;
			   vis[tmp] = 1;
             	stuf[tmp][j] = stuf[j][tmp] = 1;
			   bru.push_back({j, tmp});
		   }
	   }
	   vector <int> ret = visit();
	   for(int j=0;j<(int)ret.size();j++){
		   if(ret[j])cnt[bru[j].fi]++;
		   else cnt[bru[j].se]++;
	   }
   }
   for(int i=1;i<N;i++){
	   vector <pi> bru;
	   for(int j=1;j<=N;j++)vis[j] = 0;
	   for(int j=1;j<=N;j++){
		   int tmp = j + i;
		   if(tmp > N)tmp -= N;
		   if(!stuf[j][tmp] && !vis[j] && !vis[tmp]){
			   schedule(j, tmp);
			   vis[j] = 1;
			   vis[tmp] = 1;
             stuf[tmp][j] = stuf[j][tmp] = 1;
			   bru.push_back({j, tmp});
		   }
	   }
	   vector <int> ret = visit();
	   for(int j=0;j<(int)ret.size();j++){
		   if(ret[j])cnt[bru[j].fi]++;
		   else cnt[bru[j].se]++;
	   }
   }
   vector <int> brr;
   for(int i=1;i<=N;i++)brr.push_back(i);
   sort(brr.begin(), brr.end(), cmp);
   answer(brr);
   
}

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 3
• Subtask 4: 0 / 2
• Subtask 5: 0 / 9
• Subtask 6: 0 / 6
• Subtask 7: 0 / 9
• Subtask 8: 0 / 6
• Subtask 9: 0 / 21
• Subtask 10: 0 / 14
• Subtask 11: 0 / 9
• Subtask 12: 0 / 6