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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#798015#8363. interactiveL_Wave10 86ms9896kbC++203.9kb2024-12-03 23:08:212024-12-03 23:08:22

Judging History

你现在查看的是最新测评结果

  • [2024-12-03 23:08:22]
  • 评测
  • 测评结果:10
  • 用时:86ms
  • 内存:9896kb
  • [2024-12-03 23:08:21]
  • 提交

answer

// Problem: #P13098. 交互题
// Author: XZC(L_Wave)
// Language: Cpp/G++20
// Contest: Hydro
// URL: http://www.nfls.com.cn:10611/p/5472
// Memory Limit: 512 MB
// Time Limit: 2000 ms
// Create Time: not 2024-12-03 20:49:39, but 1926-08-17 11:45:14
// 
// Powered by CP Editor (https://cpeditor.org)

#ifndef LOCAL
#include"interactive.h"
#else
#include <vector>
#include <cstdio>
#include <cstdlib>
#include <numeric>

std::vector<int> solve(int n);
int query(std::vector<int> vec);

#define rep0(i, n) for(int i = 0; i < (int)(n); i ++)
#define rep1(i, n) for(int i = 1; i <= (int)(n); i ++)
using namespace std;

namespace
{
	const int MAXN = 500, MAXQ = 300000;
	int n, ty, p[505], mat[505][505], cnt;
	bool vis[505];
	bool legal(const vector<int>& arr)
	{
		if((int)arr.size() != n) return false;
		rep1(i, n) vis[i] = false;
		rep0(i, arr.size()) {
			if(arr[i] < 1 || arr[i] > n || vis[arr[i]]) return false;
			vis[arr[i]] = true;
		}
		return true;
	}
}

int query(vector<int> arr)
{
	if(cnt == MAXQ || !legal(arr)) {
		printf("WA: 0\n"); exit(0);
	}
	
	int ret = 0;
	rep0(i, (int)arr.size() - 1) ret += mat[arr[i]][arr[i + 1]];
	cnt ++;
	return ret;
}

int main()
{
	scanf("%d%d", &ty, &n);
	iota(p+1,p+n+1,1);
	if (ty==1)
	rep1(i, n) scanf("%d", &p[i]);
	rep1(i, n - 1) mat[p[i]][p[i + 1]] = mat[p[i + 1]][p[i]] = 1;
	
	vector<int> ans = solve(n);
	if(!legal(ans)) printf("WA: 1\n");
	else {
		int sum = 0;
		rep0(i, n - 1) sum += mat[ans[i]][ans[i + 1]];
		if(sum == n - 1) printf("AC: %d\n", cnt);
		else printf("WA: 1\n");
	}
	exit(0);
}
#endif

#include <bits/stdc++.h>
#undef rep
#define rep(i, a, b) for (int i = (a), i##ABRACADABRA = (b); i <= i##ABRACADABRA; i++)
#define drep(i, a, b) for (int i = (a), i##ABRACADABRA = (b); i >= i##ABRACADABRA; i--)
using namespace std;
using ll = long long;

namespace local{

vector<int>res;
mt19937 rng(chrono::steady_clock().now().time_since_epoch().count());
int id[505][505],p[505],n;
long double w[505][505];
bool vis[505];

void dfs(int u){
  // cout<<u<<'\n';
  res.push_back(u);
  vis[u]=1;
  rep(v,1,n)if (!vis[id[u][v]]){
    dfs(id[u][v]);
    return ;
  }
}

int ask(){
  vector<int>Q;
  rep(i,1,n)Q.push_back(p[i]);
  return query(Q);
}

void adj(vector<pair<int,int>>V,long double val){
  val/=V.size();
  for (auto [x,y]:V)w[x][y]=w[y][x]=(w[x][y]*10+val)/11;
}

std::vector<int> solve(int _n){
  n=_n;
  iota(p+1,p+n+1,1);
  rep(i,1,n)rep(j,1,n){
    if (i^j)w[i][j]=2.l/n;
    else w[i][j]=-1e9;
  }
  rep(i,1,11000){
    shuffle(p+1,p+n+1,rng);
    int x=ask();
    // cout<<"$$ "<<x<<'\n';
    rep(t,1,n-1)if (w[p[t]][p[t+1]]>0.9999)--x;
    if (!x){
      rep(t,1,n-1)if (w[p[t]][p[t+1]]<=0.9999)w[p[t]][p[t+1]]=w[p[t+1]][p[t]]=-1e9;
      // rep(i,1,n)rep(j,1,n)cout<<w[i][j]<<" \n"[j==n];
      continue;
    }
    vector<pair<int,int>>V;
    rep(t,1,n-1)if (w[p[t]][p[t+1]]>0&&w[p[t]][p[t+1]]<=0.9999)V.push_back({p[t],p[t+1]});
    if (x==(int)V.size()){
      for (auto [x,y]:V)w[x][y]=w[y][x]=1;
      V.clear();
    }
    // if (V.size()==1)cout<<w[V[0].first][V[0].second]<<' '<<x<<'\n';
    adj(V,x);
    // if (V.size()==1)cout<<w[V[0].first][V[0].second]<<'\n';
    // if (x==-1){
      // rep(i,1,n)cout<<p[i]<<' ';
      // cout<<'\n';
      // rep(i,1,n-1)if (w[p[i]][p[i+1]]>0.9999)cout<<p[i]<<' '<<p[i+1]<<' '<<w[p[i]][p[i+1]]<<'\n';
    // }
    // rep(i,1,n)rep(j,1,n)cout<<w[i][j]<<" \n"[j==n];
  }
  int pos=0;
  long double mx=0;
  rep(i,1,n){
    iota(id[i]+1,id[i]+n+1,1);
    sort(id[i]+1,id[i]+n+1,[&](int x,int y){
      return w[i][x]>w[i][y];
    });
  }
  rep(i,1,n){
    memset(vis,0,sizeof(vis));
    res.clear();
    dfs(i);
    long double val=1;
    rep(i,0,n-2)val=min(val,w[res[i]][res[i+1]]);
    if (mx<val)mx=val,pos=i;
  }
  memset(vis,0,sizeof(vis));
  res.clear();
  dfs(pos);
  return res;
}

}

std::vector<int> solve(int n){return local::solve(n);}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 10
Accepted

Test #1:

score: 10
Accepted
time: 2ms
memory: 5908kb

input:

1 3
3 1 2

output:

11000 521245195 7113

result:

points 1.0

Test #2:

score: 10
Accepted
time: 6ms
memory: 5976kb

input:

1 30
6 28 10 9 13 4 7 1 21 15 20 27 19 5 17 2 22 12 29 23 14 30 18 3 11 24 26 16 8 25

output:

11000 521245195 537621159

result:

points 1.0

Test #3:

score: 10
Accepted
time: 6ms
memory: 6132kb

input:

1 27
24 17 15 3 13 9 6 16 14 22 7 19 25 12 1 26 23 27 10 21 8 5 18 11 20 4 2

output:

11000 521245195 966160455

result:

points 1.0

Test #4:

score: 10
Accepted
time: 6ms
memory: 6060kb

input:

1 29
24 8 7 14 19 20 4 6 1 12 18 2 10 3 23 13 26 11 22 27 9 17 16 5 21 29 25 15 28

output:

11000 521245195 646167394

result:

points 1.0

Test #5:

score: 10
Accepted
time: 7ms
memory: 6120kb

input:

1 30
9 22 10 27 8 5 23 21 2 25 6 13 30 19 17 20 4 14 29 28 24 15 11 7 12 18 26 16 3 1

output:

11000 521245195 904341262

result:

points 1.0

Test #6:

score: 10
Accepted
time: 6ms
memory: 6052kb

input:

1 27
8 6 11 20 24 7 9 25 13 19 2 3 23 15 16 4 22 21 10 18 12 27 14 5 1 17 26

output:

11000 521245195 173992498

result:

points 1.0

Test #7:

score: 10
Accepted
time: 6ms
memory: 6252kb

input:

1 27
2 5 25 13 11 12 23 24 6 18 19 21 15 17 7 10 16 20 22 27 3 4 8 14 26 1 9

output:

11000 521245195 772894146

result:

points 1.0

Test #8:

score: 10
Accepted
time: 3ms
memory: 6344kb

input:

1 27
13 11 10 27 20 23 3 25 12 24 6 2 19 9 7 17 1 5 8 26 14 16 21 15 22 4 18

output:

11000 521245195 181323461

result:

points 1.0

Test #9:

score: 10
Accepted
time: 6ms
memory: 5992kb

input:

1 27
3 15 12 14 18 27 23 6 20 26 21 5 13 19 10 9 11 17 16 4 25 7 24 2 22 1 8

output:

11000 521245195 480249695

result:

points 1.0

Test #10:

score: 10
Accepted
time: 6ms
memory: 6124kb

input:

1 29
23 7 4 10 9 16 1 14 3 17 13 19 15 8 5 22 24 29 11 12 18 25 21 2 28 26 27 20 6

output:

11000 521245195 31142540

result:

points 1.0

Subtask #2:

score: 0
Wrong Answer

Test #11:

score: 90
Accepted
time: 6ms
memory: 6336kb

input:

1 27
17 16 3 20 27 5 2 13 24 21 25 23 19 9 7 4 22 12 26 15 14 11 1 18 6 10 8

output:

11000 521245195 558749364

result:

points 1.0

Test #12:

score: 90
Accepted
time: 6ms
memory: 4328kb

input:

1 29
19 13 20 22 26 1 23 24 3 14 8 25 29 17 10 9 15 11 18 4 2 28 21 7 6 12 16 27 5

output:

11000 521245195 145445666

result:

points 1.0

Test #13:

score: 90
Accepted
time: 6ms
memory: 6132kb

input:

1 28
16 7 19 9 23 12 20 26 4 10 15 8 21 5 1 22 27 2 18 24 28 6 3 14 13 17 25 11

output:

11000 521245195 877668399

result:

points 1.0

Test #14:

score: 90
Accepted
time: 6ms
memory: 6060kb

input:

1 30
13 4 29 25 16 14 6 15 19 28 7 20 3 23 12 17 8 22 1 24 9 30 21 18 2 26 27 10 11 5

output:

11000 521245195 737974315

result:

points 1.0

Test #15:

score: 90
Accepted
time: 3ms
memory: 6052kb

input:

1 27
18 25 15 20 23 14 4 16 27 6 2 12 21 19 17 26 9 8 10 11 3 7 13 22 24 5 1

output:

11000 521245195 590934171

result:

points 1.0

Test #16:

score: 81
Acceptable Answer
time: 86ms
memory: 9896kb

input:

2 494
364 164 445 359 288 412 15 377 91 481 14 3 357 358 269 136 336 106 392 200 50 388 33 338 114 11 266 186 170 239 494 196 395 68 36 423 378 218 342 275 67 240 120 86 134 356 190 323 123 339 187 30 270 430 292 121 372 404 94 143 454 309 461 344 141 480 474 248 199 42 150 260 369 483 493 124 396 4...

output:

11000 521245195 998930322

result:

points 0.90

Test #17:

score: 81
Acceptable Answer
time: 86ms
memory: 9896kb

input:

2 500
468 70 339 65 443 143 75 123 220 163 390 484 489 139 392 147 183 132 202 14 19 380 310 259 179 482 85 36 232 419 285 378 137 274 376 23 321 263 217 485 387 466 94 104 164 57 185 359 42 211 40 206 418 184 458 173 441 291 11 366 428 384 223 190 374 34 275 210 171 226 408 168 88 494 204 66 481 10...

output:

11000 521245195 110390244

result:

points 0.90

Test #18:

score: 0
Wrong Answer
time: 79ms
memory: 9812kb

input:

2 500
217 120 312 323 22 113 331 295 315 66 434 181 381 421 154 253 226 100 152 490 389 261 244 249 165 500 4 426 23 487 356 466 364 436 2 374 486 494 420 14 344 34 26 475 279 96 457 493 185 147 227 41 180 61 472 102 76 131 141 164 324 204 403 298 283 284 19 132 258 355 499 183 108 483 348 172 134 2...

output:

0 0 0

result:

FAIL WA