oj.uz

Submission #260270

# Submission time Handle Problem Language Result Execution time Memory
260270 2020-08-10T00:14:01 Z Goolakh Snake Escaping (JOI18_snake_escaping) C++17
0 / 100
 1 ms 384 KB 
// FUCKED UP FUCKED UP FUCKED UP FUCKED UP FUCKED UP
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O2,no-stack-protector,unroll-loops,fast-math")

#define F first
#define S second
#define pb push_back
#define SZ(x) (ll)(x.size())
#define all(x) x.begin(),x.end()
#define MP make_pair

typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;

//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const ll maxn=2e3+10, maxm=1e6+10, lg=21, mod=1e9+7, inf=1e18;

#define bone(x) (__builtin_popcount(x))

ll L,Q;
string s;
ll s0[1<<lg],s1[1<<lg];

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	
	cin>>L>>Q>>s;
	for(int m=0;m<SZ(s);m++){
		ll xx=((1<<L)-1)^m;
		for(int b=xx;;b=(b-1)&xx){
			s1[m]+=s[m^b]-'0', s0[m]+=s[((1<<L)-1)^(m^b)]-'0';
			if(!b) break;
		}
	}
	while(Q--){
		string t; cin>>t; reverse(all(t));
		ll t0=0,t1=0,tq=0;
		for(int i=0;i<L;i++){
			if(t[i]=='0') t0^=(1<<i);
			if(t[i]=='1') t1^=(1<<i);
			if(t[i]=='?') tq+=(1<<i);
		}
		ll mn=min({bone(t0),bone(t1),bone(tq)}),ans=0;
		if(mn==bone(tq)){
			for(ll sub=tq;;sub=(sub-1)&tq){
				ans+=s[sub^t1]-'0';
				if(!sub) break;
			};
		}
		else if(mn==bone(t1)){
			for(ll sub=t1;;sub=(sub-1)&t1){
				ans+=(bone(sub)%2==bone(t1)%2 ? +1:-1)*s0[sub^t0];
				if(!sub) break;
			}
		}
		else if(mn==bone(t0)){
			for(ll sub=t0;;sub=(sub-1)&t0){
				ans+=(bone(sub)%2==bone(t0)%2 ? +1:-1)*s1[sub^t1];
				if(!sub) break;
			}
		}
		cout<<ans<<'\n';
	}
	
	return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Incorrect 1 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Incorrect 1 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Incorrect 1 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Incorrect 1 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Incorrect 1 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -