oj.uz

답안 #647319

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
647319 2022-10-02T07:46:41 Z myrcella Zagonetka (COI18_zagonetka) C++17
18 / 100
 3000 ms 368 KB 
//by szh
#include<bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pii pair<int,int>
#define pll pair<long long,long long>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl
#define pq priority_queue
#define inf 0x3f
#define rep(i,a,b) for (int i=a;i<(b);i++)
#define MP make_pair
#define SZ(x) (int(x.size()))
#define ll long long
#define mod 1000000007
#define ALL(x) x.begin(),x.end()
void inc(int &a,int b) {a=(a+b)%mod;}
void dec(int &a,int b) {a=(a-b+mod)%mod;}
int lowbit(int x) {return x&(-x);}
ll p0w(ll base,ll p) {ll ret=1;while(p>0){if (p%2ll==1ll) ret=ret*base%mod;base=base*base%mod;p/=2ll;}return ret;}


const int maxn = 111;
int a[maxn],pos[maxn],b[maxn];
int lst[maxn],nxt[maxn]; //lst[i] = j -> j<i
pii min1[maxn],min2[maxn];
int deg[maxn],deg1[maxn],deg2[maxn];
bool edge[maxn][maxn];
vector <int> edge1[maxn],edge2[maxn]; //edge1: u->v == u<v

int n;
int cnt[maxn];

void solve() {
	queue <int> q;
	rep(i,1,n+1) if(deg[i]==0) q.push(i);
	memset(b,-1,sizeof(b));
	int cur = 1;
	while (!q.empty()) {
		int u=q.front();
		q.pop();
		b[pos[u]]=cur++;
		rep(v,1,n+1) {
			if (edge[u][v]==0) continue;
			deg[v]--;
			cnt[v]++;
			if (deg[v]==0) q.push(v);
		}
	}
	rep(i,1,n+1) deg[i] += cnt[i],cnt[i]=0;
}

void dfs1(int u) {
	min1[u] = {u,0};
	for (int v:edge1[u]) {
		dfs1(v);
		min1[u] = min(min1[u],{min1[v].fi,min1[v].se+1});
	}
}

void dfs2(int u) {
	min2[u] = {u,0};
	for (int v:edge2[u]) {
		dfs2(v);
		min2[u] = min(min2[u],{min2[v].fi,min2[v].se+1});
	}
}

void solve1() {
	pq <pair<pii,int>, vector<pair<pii,int>>, greater<pair<pii,int>> > q;
	rep(i,0,n) if(deg1[i]==0) q.push({min1[i],i});
	int cur = 1;
	while (!q.empty()) {
		int u=q.top().se;
//		debug(u);
		q.pop();
		b[u]=cur++;
		for (int v:edge1[u]){
			deg1[v]--;
			if (deg1[v]==0) q.push({min1[v],v});
		}
	}
}

void solve2() {
	pq <pair<pii,int>, vector<pair<pii,int>>, greater<pair<pii,int>> > q;
	rep(i,0,n) if (deg2[i]==0) q.push({min2[i],i});
	int cur = n;
	while (!q.empty()) {
		int u = q.top().se;
		q.pop();
		b[u] = cur--;
		for (int v:edge2[u]) {
			deg2[v]--;
			if (deg2[v]==0) q.push({min2[v],v});
		}
	}
}

int main() {
//	freopen("input.txt","r",stdin);	
	cin>>n;
	rep(i,0,n) cin>>a[i],pos[a[i]] = i;
	rep(i,1,n+1) 
	rep(j,i+1,n+1) edge[i][j] = 1,deg[j]++;  
	memset(lst,-1,sizeof(lst));
	memset(nxt,-1,sizeof(nxt));
	rep(t,1,n){
		 for (int i=1;i+t<=n;i++) {
			int j = i+t;
			edge[i][j]=0,deg[j]--;
			edge[j][i]=1,deg[i]++;
			solve();
			bool flag = false;
			rep(i,0,n) {
				if (b[i]==-1) flag=true;
			}
			int ans=0;
			if (!flag) {
				cout<<"query";
				rep(k,0,n) cout<<" "<<b[k];
				cout<<endl;
				cin>>ans;
			}
			if (ans==0) edge[i][j] =1,deg[j]++;
			edge[j][i] = 0,deg[i]--;
		}
	}
	/*
	rep(i,1,n+1) {
		s.erase(i);
		vector <int> tmp;
		while (nxt[pos[i]]==-1) {
			auto it = s.upper_bound(i);
			if (it==s.end()) break;
			int cur = *it;
			debug(cur);
			swap(a[pos[i]],a[pos[cur]]);
			cout<<"query";
			rep(k,0,n) cout<<" "<<a[k];
			cout<<endl;
			int ans;cin>>ans;
			swap(a[pos[i]],a[pos[cur]]);
			if (ans==0) {
				nxt[pos[i]] = pos[cur];
				edge[pos[i]].pb(pos[cur]);
				deg[pos[cur]]++;
			}
			else tmp.pb(cur);
			s.erase(cur);
		}
		while (!tmp.empty()) s.insert(tmp.back()),tmp.pop_back();
	}
	*/
	rep(i,1,n+1) 
		rep(j,1,n+1) {
			
			if (edge[i][j]==0) continue;
	//		debug(i),debug(j);
			edge1[pos[i]].pb(pos[j]),deg1[pos[j]]++;
			edge2[pos[j]].pb(pos[i]),deg2[pos[i]]++;
		}
	rep(i,0,n) {
		if (deg1[i]==0) dfs1(i);
		if (deg2[i]==0) dfs2(i);
	}
	/*
	int curmin = 1,curmax = n;
	rep(i,0,n) {
		if (amin[i]==0) {
			vector <int> tmp;
			int pos = i;
			while (pos!=-1 and amin[pos]==0) tmp.pb(pos),pos = lst[pos];
			while (!tmp.empty()) amin[tmp.back()] = curmin++,tmp.pop_back();
		}
		if (amax[i]==0) {
			vector <int> tmp;
			int pos = i;
			while (pos!=-1 and amax[pos]==0) tmp.pb(pos),pos = nxt[pos];
			while (!tmp.empty()) amax[tmp.back()] = curmax--,tmp.pop_back();
		}
	}
	
	solve2();
	cout<<"query";
	rep(i,0,n) cout<<" "<<b[i];
	cout<<endl;
	int err;cin>>err;
	assert(err==1);
		*/
	cout<<"end"<<endl;
	solve1();
	rep(i,0,n) cout<<b[i]<<" ";
	cout<<endl;
	solve2();
	rep(i,0,n) cout<<b[i]<<" ";
	cout<<endl;
	return 0;
}

Subtask #1
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 368 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Incorrect 1 ms 208 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 300 KB Output is correct
2 Correct 56 ms 300 KB Output is correct
3 Correct 77 ms 208 KB Output is correct
4 Correct 68 ms 300 KB Output is correct
5 Correct 13 ms 300 KB Output is correct
6 Correct 71 ms 304 KB Output is correct
7 Correct 9 ms 296 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 55 ms 300 KB Output is correct
10 Correct 19 ms 300 KB Output is correct

Subtask #3
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Incorrect 2 ms 208 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 208 ms 308 KB Output is correct
2 Correct 225 ms 300 KB Output is correct
3 Correct 196 ms 304 KB Output is correct
4 Execution timed out 3077 ms 328 KB Time limit exceeded
5 Halted 0 ms 0 KB -