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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#639279#8529. Balance of Permutationucup-team134TL 3908ms614484kbC++175.8kb2024-10-13 18:41:352024-10-13 18:41:35

Judging History

你现在查看的是最新测评结果

  • [2024-10-13 18:41:35]
  • 评测
  • 测评结果:TL
  • 用时:3908ms
  • 内存:614484kb
  • [2024-10-13 18:41:35]
  • 提交

answer

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define ll long long
#define pb push_back
#define f first
#define s second
#define sz(x) (int)(x).size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define ios ios_base::sync_with_stdio(false);cin.tie(NULL)
#define ld long double
#define li __int128

using namespace __gnu_pbds;
using namespace std;

mt19937 rng(time(NULL));
const int N=30,G=15,M=1<<G;
li top[M][2][G*G+1];
int n,b;
li total[G+1][G*G+1];
li cnt[M][G*G+1];
bool done[M];
void calctop(){
	top[M-1][0][0]=1; // basecase
	for(int e=0;e<=G;e++){
		int my=e&1,other=my^1;
		for(int i=0;i<M;i++)for(int j=0;j<G*G;j++)top[i][other][j]=0;
		for(int msk=M-1;msk>=0;msk--){
			int x=__builtin_popcount(msk);
			int nema=G-x + e;
			int sledeci=G-nema-1;
			for(int uzeto=0;uzeto<=G*G;uzeto++){
				if(top[msk][my][uzeto]==0)continue;
				bitset<G> aa=msk;
				//cout << aa << " " << e << " " << uzeto << ": " << (int)top[msk][my][uzeto] << endl;
				if(nema==G){
					int myu=uzeto;
					for(int i=0;i<G;i++){
						if(msk&(1<<i)){
							myu+=i;
						}
					}
					//cout << aa << " ";
					//printf("%i %i += %i\n",e,myu,(int)top[msk][my][uzeto]);
					if(myu>G*G)printf("%i %i\n",myu,G*G);
					assert(myu<=G*G);
					total[e][myu]+=top[msk][my][uzeto];
					assert(cnt[msk][myu]==0);
					cnt[msk][myu]+=top[msk][my][uzeto];
					continue;
				}
				// Take it
				for(int i=0;i<G;i++){
					int ad=abs(i-sledeci);
					if(msk&(1<<i)){
						assert(ad+uzeto<=G*G);
						top[msk^(1<<i)][my][uzeto+ad]+=top[msk][my][uzeto];
					}
				}
				// Take some smaller 1
				int ad=sledeci+1;
				assert(ad+uzeto<=G*G);
				top[msk][other][uzeto+ad]+=top[msk][my][uzeto];
			}
		}
	}
}
vector<int> tk;
void remove(int i){
	tk.clear();
	for(int msk=0;msk<M;msk++){
		if(!(msk&(1<<i))){
			if(!done[msk]){
				done[msk]=1;
				tk.pb(msk);
				int em=__builtin_popcount(msk);
				for(int k=0;k<=G*G;k++){
					//printf("%i %i -= %i\n",em,k,(int)cnt[msk][k]);
					total[em][k]-=cnt[msk][k];
				}
			}
		}
	}
}
void undo(){
	for(auto msk:tk){
		done[msk]=0;
		int em=__builtin_popcount(msk);
		for(int k=0;k<=G*G;k++){
			total[em][k]+=cnt[msk][k];
		}
	}
}
set<int> havebot,havetop;
const int G2=N-G,M2=(1<<G2);
gp_hash_table<int,li> bot[661][G2+1];
int K;
vector<int> mybot;
void reset(){
	K=sz(mybot);
	for(int i=0;i<661;i++)for(int j=0;j<=K;j++)bot[i][j].clear();
}
vector<li> fact(G+1);
bool pastLim=false;
int emOffset;
li calc(int msk,int em,int treba){
	int x=__builtin_popcount(msk);
	bitset<M2> aa=msk;
	//cout << aa << " " << em << " " << treba << endl;
	if(K-x+em+emOffset==K){ // took everything, base case :)
		if(!pastLim){
			for(int i=0;i<K;i++){
				if(msk&(1<<i)){
					treba-=K-emOffset-1-mybot[i];
				}
			}
			if(treba<0||treba>G*G)return 0;
			//printf("Treba: %i\n",treba);
			//printf("Opcija: %i\n",(int)total[em+emOffset][treba]);
			return total[em+emOffset][treba]*fact[em]*fact[em+emOffset];
		}
		else{
			assert(msk==0&&em==0);
			return treba==0;
		}
	}
	if(bot[treba][em].find(msk)!=bot[treba][em].end())return bot[treba][em][msk];
	li val=0;
	int vecUzeo=K-x+em;
	for(int i=0;i<K;i++){
		if(msk&(1<<i)){
			int taking=mybot[i];
			int ad=abs(taking-vecUzeo);
			if(ad<=treba){
				val+=calc(msk^(1<<i),em,treba-ad);
			}
		}
	}
	if(sz(havetop)){
		int ad=K-emOffset-vecUzeo;
		if(ad<=treba){
			val+=calc(msk,em+1,treba-ad);
		}
	}
	bot[treba][em][msk]=val;
	return val;
}
li getbot(int treba){
	if(treba<0)return 0;
	reset();
	return calc((1<<K)-1,0,treba);
}
vector<int> ans;
int LIMIT;
void calcans(li treba){
	if(sz(ans)==n){
		assert(treba==1);
		for(auto p:ans){
			printf("%i ",p+1);
		}
		printf("\n");
		return;
	}
	/*printf("%i!\n",sz(ans));
	for(auto p:ans)printf("%i ",p);
	printf("\n");
	for(auto p:havebot)printf("%i ",p);
	printf("\n");
	for(auto p:havetop)printf("%i ",p);
	printf("\n");*/
	if(sz(ans)==LIMIT){
		// Convert all the top to bot case
		// TODO
		for(auto p:havetop)havebot.insert(p);
		havetop.clear();
		LIMIT=N+1;
		pastLim=1;
	}
	// Take something from bot
	vector<int> opt;
	for(auto p:havebot)opt.pb(p);
	for(auto p:opt){
		havebot.erase(p);
		ans.pb(p);

		int tr=b;
		emOffset=0;
		for(int i=0;i<sz(ans);i++){
			if(ans[i]<LIMIT){
				// small
				tr-=abs(i-ans[i]);
			}
			else{
				emOffset++;
				tr-=LIMIT-i;
			}
		}
		mybot.clear();
		for(auto d:havebot){
			mybot.pb(d-sz(ans));
		}
		li my=getbot(tr);
		//printf("Pokusavam %i: %i\n",p,(int)my);
		if(my>=treba){
			calcans(treba);
			return;
		}
		treba-=my;
		
		ans.pop_back();
		havebot.insert(p);
	}
	
	// Take something from top
	opt.clear();
	for(auto p:havetop)opt.pb(p);
	for(auto p:opt){
		havetop.erase(p);
		ans.pb(p);
		remove(p-LIMIT);

		int tr=b;
		emOffset=0;
		for(int i=0;i<sz(ans);i++){
			if(ans[i]<LIMIT){
				// small
				tr-=abs(i-ans[i]);
			}
			else{
				emOffset++;
				tr-=LIMIT-i;
			}
		}
		//printf("Limit = %i\n",LIMIT);
		mybot.clear();
		for(auto d:havebot){
			mybot.pb(d-sz(ans));
		}
		li my=getbot(tr);
		//printf("Pokusavam 2 %i: %i\n",p,(int)my);
		if(my>=treba){
			calcans(treba);
			return;
		}
		treba-=my;
		
		ans.pop_back();
		havetop.insert(p);
		undo();
	}
	assert(0);
}
int main()
{
	fact[0]=1;
	for(int i=1;i<=G;i++)fact[i]=i*fact[i-1];
	scanf("%i %i",&n,&b);
	string s;
	cin >> s;
	li k=0;
	for(auto p:s){
		k*=10;
		k+=p-'0';
	}
	//n=b=k=6;
	if(n>G){
		calctop();
		//printf("Done calctop!\n");
		for(int i=0;i<n-G;i++){
			havebot.insert(i);
		}
		for(int i=n-G;i<n;i++)havetop.insert(i);
		LIMIT=n-G;
	}
	else{
		for(int i=0;i<n;i++)havebot.insert(i);
		LIMIT=n;pastLim=1;
	}
	calcans(k);
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 11128kb

input:

6 6 6

output:

1 2 6 3 4 5 

result:

ok 6 numbers

Test #2:

score: 0
Accepted
time: 3086ms
memory: 614484kb

input:

30 300 3030303030303030303030

output:

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

result:

ok 30 numbers

Test #3:

score: 0
Accepted
time: 0ms
memory: 13160kb

input:

1 0 1

output:

1 

result:

ok 1 number(s): "1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 11168kb

input:

2 0 1

output:

1 2 

result:

ok 2 number(s): "1 2"

Test #5:

score: 0
Accepted
time: 3ms
memory: 11156kb

input:

2 2 1

output:

2 1 

result:

ok 2 number(s): "2 1"

Test #6:

score: 0
Accepted
time: 0ms
memory: 11160kb

input:

5 8 3

output:

1 5 4 2 3 

result:

ok 5 number(s): "1 5 4 2 3"

Test #7:

score: 0
Accepted
time: 4ms
memory: 11184kb

input:

7 20 100

output:

3 6 7 4 1 5 2 

result:

ok 7 numbers

Test #8:

score: 0
Accepted
time: 0ms
memory: 11168kb

input:

7 2 6

output:

2 1 3 4 5 6 7 

result:

ok 7 numbers

Test #9:

score: 0
Accepted
time: 5ms
memory: 12628kb

input:

7 24 1

output:

4 5 6 7 1 2 3 

result:

ok 7 numbers

Test #10:

score: 0
Accepted
time: 0ms
memory: 12916kb

input:

7 22 360

output:

7 6 4 3 5 2 1 

result:

ok 7 numbers

Test #11:

score: 0
Accepted
time: 4ms
memory: 11208kb

input:

7 20 358

output:

5 7 2 4 6 3 1 

result:

ok 7 numbers

Test #12:

score: 0
Accepted
time: 10ms
memory: 11360kb

input:

10 48 10001

output:

7 5 8 9 6 10 3 4 1 2 

result:

ok 10 numbers

Test #13:

score: 0
Accepted
time: 9ms
memory: 12568kb

input:

10 42 10101

output:

3 9 6 8 10 5 7 2 1 4 

result:

ok 10 numbers

Test #14:

score: 0
Accepted
time: 1515ms
memory: 380092kb

input:

25 300 1

output:

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

result:

ok 25 numbers

Test #15:

score: 0
Accepted
time: 1527ms
memory: 364380kb

input:

25 300 283788388040048639877

output:

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

result:

ok 25 numbers

Test #16:

score: 0
Accepted
time: 1983ms
memory: 376900kb

input:

26 302 105773752969551707419545

output:

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

result:

ok 26 numbers

Test #17:

score: 0
Accepted
time: 3071ms
memory: 391384kb

input:

27 308 8781128321749037280676555

output:

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

result:

ok 27 numbers

Test #18:

score: 0
Accepted
time: 3908ms
memory: 403784kb

input:

28 304 806517199954337651602356955

output:

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

result:

ok 28 numbers

Test #19:

score: -100
Time Limit Exceeded

input:

29 322 40281026669581503094652149519

output:


result: