oj.uz

답안 #1115166

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1115166 2024-11-20T07:41:04 Z Dan4Life Snake Escaping (JOI18_snake_escaping) C++17
0 / 100
 189 ms 21072 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
 
const int B1 = 7;
const int B2 = 20-B1;
const int N1 = (1<<B1)+10;
const int N2 = (1<<B2)+2;
const int M1 = 2190;
const int M2 = 1594325;
vector<array<int,2>> v, w[N1];
string s;
bitset<N1+10> submask[M1];
int l, q, ans[M2], dp[M2], nx[2][M2];
 
int calc(string lol){
	int p = 1, ans = 0, xd;
	for(int i = 0; i < sz(lol); i++){
		if(lol[i]=='?') xd=2;
		else xd = lol[i]-'0';
		ans+=xd*p, p*=3;
	}
	return ans;
}
 
int calc(int lol){
	int p = 1, ans = 0;
	while(lol){
		int r = lol%2; lol/=2;
		ans+=r*p; p*=3;
	}
	return ans;
}
 
int32_t main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> l >> q >> s;
	memset(nx,-1,sizeof(nx));
	for(int i = 0; i < M2; i++){
		int xd = i, p = 1;
		while(xd){
			int r = xd%3;
			if(r==2){
				nx[0][i] = i-2*p; 
				nx[1][i] = i-p; break;
			}
			xd/=3; p*=3;
		}
	}
	for(int i = 0; i < M1; i++){
		for(int j = 0; j < N1; j++){
			int ok = 1, cur = i, cur2 = j;
			for(int k = 0; k < B1; k++){
				int t = cur%3, t2=cur2%2; cur/=3; cur2/=2;
				if(t==2 or t==t2) continue; ok=0; break;
			}
			if(ok) submask[i][j]=1;
		}
	}
	for(int mask = 0; mask < (1<<l); mask++){
		int m1 = 0, m2 = mask;
		if(l>B1) m1 = mask&((1<<B1)-1), m2>>=B1;
		w[m1].pb({calc(m2),s[mask]-'0'});
	}
	for(int i = 0; i < q; i++){
		string t; cin >> t; 
		reverse(all(t)); string x="";
		if(l>B1) x = t.substr(0,B1),t=t.substr(B1);
		v.pb({calc(x),calc(t)});
	}
	for(int _ = 0; _ < N1-9; _++){
		for(auto [xd,sc] : w[_]) dp[xd]=sc;
		for(int i = 0; i < M2; i++)
			if(nx[0][i]!=-1) dp[i]=dp[nx[0][i]]+dp[nx[1][i]];
		for(int i = 0; i < q; i++){
			auto [x,y] = v[i];
			if(submask[x][_]) ans[i]+=dp[y];
		}
	}
	for(int i = 0; i < q; i++) cout << ans[i] << "\n";
}

Compilation message

snake_escaping.cpp: In function 'int32_t main()':
snake_escaping.cpp:57:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   57 |     if(t==2 or t==t2) continue; ok=0; break;
      |     ^~
snake_escaping.cpp:57:33: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   57 |     if(t==2 or t==t2) continue; ok=0; break;
      |                                 ^~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 188 ms 21072 KB Output is correct
2 Incorrect 189 ms 21072 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 188 ms 21072 KB Output is correct
2 Incorrect 189 ms 21072 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 188 ms 21072 KB Output is correct
2 Incorrect 189 ms 21072 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 188 ms 21072 KB Output is correct
2 Incorrect 189 ms 21072 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 188 ms 21072 KB Output is correct
2 Incorrect 189 ms 21072 KB Output isn't correct
3 Halted 0 ms 0 KB -