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답안 #419646

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
419646 2021-06-07T10:51:11 Z alishahali1382 Monster Game (JOI21_monster) C++17
93 / 100
 134 ms 4532 KB 
#include "monster.h"
#include <bits/stdc++.h>
#pragma GCC optimize("O2")
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef vector<int> vi;
#define debug(x) {cerr<<#x<<"="<<x<<"\n";}
#define debug2(x, y) {cerr<<"{"<<#x<<", "<<#y<<"}={"<<x<<", "<<y<<"}\n";}
#define debugp(p) {cerr<<#p<<"={"<<p.first<<" "<<p.second<<"}\n";}
#define debugv(abcd) {cerr<<#abcd<<": ";for (auto dcba:abcd) cerr<<dcba<<" ";cerr<<"\n";}
#define pb push_back
#define all(x) x.begin(), x.end()
#define kill(x) return cout<<x<<"\n", 0;
#define SZ(x) ((int)x.size())

const int inf=1000010000;
const int mod=1000000007;
const int MAXN=1010;

int n, m, q, k, u, v, x, y, t, l, r, ans;
int A[MAXN][MAXN];
int P[MAXN], deg[MAXN];
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

bool Ask(int u, int v){
	if (u==v) return 0; // wtf
	if (u>v) return !Ask(v, u);
	if (A[u][v]==-1) A[u][v]=!Query(u, v);
	return A[u][v];
}
vi FUCK(vi A){
	vi B(n, 0);
	for (int i=0; i<n; i++) B[A[i]]=i;
	return B;
}

void MergeSort(int *l, int *r){
	if (r-l<=1) return ;
	int *mid=(r-l)/2+l;
	MergeSort(l, mid);
	MergeSort(mid, r);
	vector<int> vec(r-l, 0);
	merge(l, mid, mid, r, vec.begin(), Ask);
	for (int i=0; i<r-l; i++) (*(l+i))=vec[i];
}

vi Solve(int _n){
	n=_n;
	memset(A, -1, sizeof(A));
	vi out;
	iota(P, P+n, 0);
	shuffle(P, P+n, rng);
	MergeSort(P, P+n);
	// cerr<<"P: ";for (int i=0; i<n; i++) cerr<<P[i]<<" \n"[i==n-1];

	int t=0, y=P[n-1];
	for (int i=0; i<n; i++) if (i!=y) t+=Ask(y, i);
	if (t==n-2){
		if (Ask(P[2], P[0])){
			for (int i=n-1; ~i; i--) out.pb(P[i]);
		}
		else{
			out.pb(P[0]);
			for (int i=n-1; i; i--) out.pb(P[i]);
		}
		// debugv(out)
		// debug("shit")
		return FUCK(out);
	}
	int j=0, pos=n-1;
	for (int i=0; i<n-1; i++) if (Ask(y, P[i])){
		x=P[i];
		j=i;
		break ;
	}
	if (t==1){
		int tx=0;
		for (int i=n-1; ~i && tx<=1; i--) if (P[i]!=x) tx+=Ask(x, P[i]);
		if (tx==1){
			out.pb(P[pos--]);
		}
		else{
			out.pb(P[pos--]);
			out.pb(P[pos--]);
			assert(tx<=n-2);
		}
	}
	else{
		out.pb(P[pos--]);
		out.pb(P[pos--]);
		while (~pos && P[pos]!=x && Ask(y, P[pos])) out.pb(P[pos--]);
	}
	reverse(all(out));
	// debugv(out)

	int last=P[n-1];
	while (~pos){
		int nw=P[pos];
		vi shit;
		while (1){
			int v=P[pos--];
			shit.pb(v);
			if (Ask(last, v)) break ;
		}
		reverse(all(shit));
		for (int x:shit) out.pb(x);
		last=nw;
	}
	reverse(all(out));
	return FUCK(out);
}

Compilation message

monster.cpp: In function 'vi Solve(int)':
monster.cpp:74:6: warning: variable 'j' set but not used [-Wunused-but-set-variable]
   74 |  int j=0, pos=n-1;
      |      ^

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4296 KB Output is correct
2 Correct 2 ms 4168 KB Output is correct
3 Correct 2 ms 4168 KB Output is correct
4 Correct 2 ms 4296 KB Output is correct
5 Correct 2 ms 4168 KB Output is correct
6 Correct 2 ms 4296 KB Output is correct
7 Correct 3 ms 4168 KB Output is correct
8 Correct 3 ms 4296 KB Output is correct
9 Correct 3 ms 4296 KB Output is correct
10 Correct 2 ms 4296 KB Output is correct
11 Correct 3 ms 4296 KB Output is correct
12 Correct 2 ms 4296 KB Output is correct
13 Correct 2 ms 4296 KB Output is correct
14 Correct 3 ms 4296 KB Output is correct
15 Correct 2 ms 4296 KB Output is correct
16 Correct 17 ms 4296 KB Output is correct
17 Correct 18 ms 4168 KB Output is correct
18 Correct 23 ms 4296 KB Output is correct
19 Correct 21 ms 4276 KB Output is correct
20 Correct 9 ms 4296 KB Output is correct
21 Correct 2 ms 4168 KB Output is correct
22 Correct 2 ms 4296 KB Output is correct
23 Correct 3 ms 4296 KB Output is correct
24 Correct 2 ms 4296 KB Output is correct
25 Correct 3 ms 4296 KB Output is correct
26 Correct 17 ms 4296 KB Output is correct
27 Correct 3 ms 4168 KB Output is correct
28 Correct 2 ms 4168 KB Output is correct
29 Correct 3 ms 4296 KB Output is correct
30 Correct 3 ms 4296 KB Output is correct
31 Correct 2 ms 4296 KB Output is correct
32 Correct 22 ms 4292 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4296 KB Output is correct
2 Correct 2 ms 4168 KB Output is correct
3 Correct 2 ms 4168 KB Output is correct
4 Correct 2 ms 4296 KB Output is correct
5 Correct 2 ms 4168 KB Output is correct
6 Correct 2 ms 4296 KB Output is correct
7 Correct 3 ms 4168 KB Output is correct
8 Correct 3 ms 4296 KB Output is correct
9 Correct 3 ms 4296 KB Output is correct
10 Correct 2 ms 4296 KB Output is correct
11 Correct 3 ms 4296 KB Output is correct
12 Correct 2 ms 4296 KB Output is correct
13 Correct 2 ms 4296 KB Output is correct
14 Correct 3 ms 4296 KB Output is correct
15 Correct 2 ms 4296 KB Output is correct
16 Correct 17 ms 4296 KB Output is correct
17 Correct 18 ms 4168 KB Output is correct
18 Correct 23 ms 4296 KB Output is correct
19 Correct 21 ms 4276 KB Output is correct
20 Correct 9 ms 4296 KB Output is correct
21 Correct 2 ms 4168 KB Output is correct
22 Correct 2 ms 4296 KB Output is correct
23 Correct 3 ms 4296 KB Output is correct
24 Correct 2 ms 4296 KB Output is correct
25 Correct 3 ms 4296 KB Output is correct
26 Correct 17 ms 4296 KB Output is correct
27 Correct 3 ms 4168 KB Output is correct
28 Correct 2 ms 4168 KB Output is correct
29 Correct 3 ms 4296 KB Output is correct
30 Correct 3 ms 4296 KB Output is correct
31 Correct 2 ms 4296 KB Output is correct
32 Correct 22 ms 4292 KB Output is correct
33 Correct 134 ms 4296 KB Output is correct
34 Correct 101 ms 4292 KB Output is correct
35 Correct 98 ms 4296 KB Output is correct
36 Correct 120 ms 4288 KB Output is correct
37 Correct 132 ms 4296 KB Output is correct
38 Correct 82 ms 4532 KB Output is correct
39 Correct 117 ms 4296 KB Output is correct
40 Correct 124 ms 4288 KB Output is correct
41 Correct 118 ms 4408 KB Output is correct
42 Correct 107 ms 4296 KB Output is correct
43 Correct 102 ms 4296 KB Output is correct
44 Correct 55 ms 4412 KB Output is correct

Subtask #3
68.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Partially correct 60 ms 4296 KB Partially correct
2 Partially correct 93 ms 4296 KB Partially correct
3 Partially correct 94 ms 4412 KB Partially correct
4 Partially correct 75 ms 4280 KB Partially correct
5 Partially correct 127 ms 4296 KB Partially correct
6 Correct 98 ms 4296 KB Output is correct
7 Correct 93 ms 4288 KB Output is correct
8 Partially correct 95 ms 4296 KB Partially correct
9 Partially correct 88 ms 4288 KB Partially correct
10 Partially correct 122 ms 4296 KB Partially correct
11 Partially correct 132 ms 4288 KB Partially correct
12 Partially correct 103 ms 4416 KB Partially correct
13 Correct 108 ms 4296 KB Output is correct
14 Correct 101 ms 4288 KB Output is correct
15 Correct 64 ms 4424 KB Output is correct
16 Correct 84 ms 4416 KB Output is correct
17 Correct 94 ms 4296 KB Output is correct
18 Correct 62 ms 4296 KB Output is correct