// EXPLOSION!
#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
#include<unordered_set>
#include<unordered_map>
#include<chrono>
using namespace std;
typedef pair<int, int> pii;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pair<int, int>> vpi;
typedef vector<pair<ll, ll>> vpll;
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)
#define pb push_back
#define mp make_pair
#define rsz resize
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define f first
#define s second
#define cont continue
//#define endl '\n'
//#define ednl '\n'
#define test int testc;cin>>testc;while(testc--)
#define pr(a, b) trav(x,a)cerr << x << b; cerr << endl;
#define message cout << "Hello World" << endl;
const int dx[4] = { 1,0,-1,0 }, dy[4] = { 0,1,0,-1 }; // for every grid problem!!
const ll linf = 4000000000000000000LL;
const ll inf = 1000000007;//998244353
void pv(vi a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vll a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vector<vi>a) {
F0R(i, sz(a)) { cout << i << endl; pv(a[i]); cout << endl; }
}void pv(vector<vll>a) { F0R(i, sz(a)) { cout << i << endl; pv(a[i]); }cout << endl; }void pv(vector<string>a) { trav(x, a)cout << x << endl; cout << endl; }
void setIO(string s) {
ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef arwaeystoamneg
if (sz(s))
{
freopen((s + ".in").c_str(), "r", stdin);
if (s != "test1")
freopen((s + ".out").c_str(), "w", stdout);
}
#endif
}
int popcount(ll a)
{
int count = 0;
while (a)
{
count += (a & 1);
a >>= 1;
}
return count;
}
const int SZ = 20;
int n, q;
string a;
ll super[1 << SZ], sub[1 << SZ];
int main()
{
setIO("test1");
cin >> n >> q >> a;
F0R(mask, 1 << n)
{
sub[mask] = super[mask] = a[mask] - '0';
}
F0R(i, n)
{
F0R(mask, 1 << n)
{
if (mask & (1 << i))continue;
sub[mask ^ (1 << i)] += sub[mask];
}
}
F0R(i, n)
{
R0F(mask, 1 << n)
{
if (mask & (1 << i))
{
super[mask ^ (1 << i)] += super[mask];
}
}
}
F0R(l, q)
{
string a;
cin >> a;
reverse(all(a));
vi zero, one, quest;
F0R(i, n)if (a[i] == '0')zero.pb(i); else if (a[i] == '1')one.pb(i); else quest.pb(i);
ll ans = 0;
if (sz(zero) <= n / 3)
{
int mask1 = 0;
trav(x, one)mask1 ^= (1 << x);
int m = sz(zero);
F0R(mask, 1 << m)
{
int mask2 = mask1;
F0R(i, m)
{
if (mask & (1 << i))mask2 ^= (1 << zero[i]);
}
if (popcount(mask) & 1)ans -= super[mask2];
else ans += super[mask2];
}
}
else if (sz(one) <= n / 3)
{
int mask1 = 0;
trav(x, quest)mask1 ^= (1 << x);
int m = sz(one);
F0R(mask, 1 << m)
{
int mask2 = mask1;
F0R(i, m)
{
if (mask & (1 << i))mask2 ^= (1 << one[i]);
}
if (popcount(mask) - m & 1)ans -= sub[mask2];
else ans += sub[mask2];
}
}
else
{
int mask1 = 0;
trav(x, one)mask1 ^= (1 << x);
int m = sz(quest);
F0R(mask, 1 << m)
{
int mask2 = mask1;
F0R(i, m)
{
if (mask & (1 << i))mask2 ^= (1 << quest[i]);
}
ans += a[mask2] - '0';
}
}
cout << ans << endl;
}
}
Compilation message
snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:132:24: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
132 | if (popcount(mask) - m & 1)ans -= sub[mask2];
| ~~~~~~~~~~~~~~~^~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
336 KB |
Output is correct |
| 2 |
Correct |
2 ms |
336 KB |
Output is correct |
| 3 |
Incorrect |
3 ms |
328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
336 KB |
Output is correct |
| 2 |
Correct |
2 ms |
336 KB |
Output is correct |
| 3 |
Incorrect |
3 ms |
328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
336 KB |
Output is correct |
| 2 |
Correct |
2 ms |
336 KB |
Output is correct |
| 3 |
Incorrect |
3 ms |
328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
336 KB |
Output is correct |
| 2 |
Correct |
2 ms |
336 KB |
Output is correct |
| 3 |
Incorrect |
3 ms |
328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
336 KB |
Output is correct |
| 2 |
Correct |
2 ms |
336 KB |
Output is correct |
| 3 |
Incorrect |
3 ms |
328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
