oj.uz

Submission #1027668

# Submission time Handle Problem Language Result Execution time Memory
1027668 2024-07-19T08:47:08 Z Tymond Snake Escaping (JOI18_snake_escaping) C++17
100 / 100
 540 ms 39340 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define fi first
#define se second
#define vi vector<int>
#define vll vector<long long>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::steady_clock::now().time_since_epoch().count());
inline int rand(int l,int r){return uniform_int_distribution<int>(l, r)(rng);}
inline ll rand(ll l,ll r){return uniform_int_distribution<ll>(l, r)(rng64);}
#ifdef DEBUG
auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";}
auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";}
#define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X)
#else
#define debug(...){}
#endif

struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

int readInt () {
	bool minus = false;
	int result = 0;
	char ch;
	ch = getchar();
	while (true) {
		if (ch == '-') break;
		if (ch >= '0' && ch <= '9') break;
		ch = getchar();
	}
	if (ch == '-') minus = true; else result = ch-'0';
	while (true) {
		ch = getchar();
		if (ch < '0' || ch > '9') break;
		result = result*10 + (ch - '0');
	}
	if (minus)
		return -result;
	else
		return result;
}

int n, q;
const int MAXN = 20;
string s;
int dp[(1 << MAXN) + 7];
int dp2[(1 << MAXN) + 7];

int z(int x){
	if(__builtin_popcount(x) % 2 == 0){
		return 1;
	}
	return -1;
}

int z2(int a, int x){
	if(((int)__builtin_popcount(a) - (int)__builtin_popcount(x)) % 2 == 0){
		return 1;
	}
	return -1;
}

void solve(){
    cin >> n >> q;
    cin >> s;
    for(int i = 0; i < (1 << n); i++){
    	dp[i] = s[i] - '0';
    	dp2[i] = s[i] - '0';
    }

    for(int i = 0; i < n; i++){
    	for(int msk = 0; msk < (1 << n);  msk++){
    		if((msk & (1 << i))){
    			dp[msk] += dp[(msk ^ (1 << i))];
    		}else{
    			dp2[msk] += dp2[(msk ^ (1 << i))];
    		}
    	}
    }

    while(q--){
    	string t;
    	cin >> t;
    	reverse(t.begin(), t.end());
    	int a = 0, b = 0, c = 0;
    	for(int i = 0; i < n; i++){
    		if(t[i] == '0'){
    			a += (1 << i);
    		}else if(t[i] == '1'){
    			b += (1 << i);
    		}else{
    			c += (1 << i);
    		}
    	}

    	int ans = 0;
    	if(__builtin_popcount(c) <= 6){
    		for(int x = c; x > 0; x = (x - 1) & c){
    			ans += (s[x | b] - '0');
    		}
    		ans += (s[b] - '0');
    	}else if(__builtin_popcount(a) <= 6){
    		for(int x = a; x > 0; x = (x - 1) & a){
    			ans += (dp2[x | b] * z(x));
    		}
    		ans += dp2[b];
    	}else{
    		for(int x = b; x > 0; x = (x - 1) & b){
    			ans += (dp[x | c] * z2(b, x));
    		}
    		ans += (dp[c] * z(b));
    	}

    	cout << ans << '\n';
    }
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int t = 1;
    //cin >> t;
    while(t--){
        solve();
    }

    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 2 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 2 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 203 ms 17236 KB Output is correct
12 Correct 210 ms 17244 KB Output is correct
13 Correct 174 ms 16160 KB Output is correct
14 Correct 166 ms 16072 KB Output is correct
15 Correct 205 ms 17236 KB Output is correct
16 Correct 187 ms 16384 KB Output is correct
17 Correct 200 ms 16248 KB Output is correct
18 Correct 110 ms 18068 KB Output is correct
19 Correct 157 ms 15072 KB Output is correct
20 Correct 175 ms 16724 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 2 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 203 ms 17236 KB Output is correct
12 Correct 210 ms 17244 KB Output is correct
13 Correct 174 ms 16160 KB Output is correct
14 Correct 166 ms 16072 KB Output is correct
15 Correct 205 ms 17236 KB Output is correct
16 Correct 187 ms 16384 KB Output is correct
17 Correct 200 ms 16248 KB Output is correct
18 Correct 110 ms 18068 KB Output is correct
19 Correct 157 ms 15072 KB Output is correct
20 Correct 175 ms 16724 KB Output is correct
21 Correct 169 ms 20164 KB Output is correct
22 Correct 249 ms 20324 KB Output is correct
23 Correct 211 ms 19284 KB Output is correct
24 Correct 205 ms 19140 KB Output is correct
25 Correct 195 ms 21064 KB Output is correct
26 Correct 234 ms 19796 KB Output is correct
27 Correct 218 ms 19540 KB Output is correct
28 Correct 125 ms 22100 KB Output is correct
29 Correct 172 ms 18036 KB Output is correct
30 Correct 220 ms 20308 KB Output is correct
31 Correct 250 ms 20128 KB Output is correct
32 Correct 224 ms 20096 KB Output is correct
33 Correct 180 ms 19028 KB Output is correct
34 Correct 204 ms 19192 KB Output is correct
35 Correct 220 ms 19616 KB Output is correct
36 Correct 113 ms 18260 KB Output is correct
37 Correct 213 ms 20176 KB Output is correct
38 Correct 176 ms 18212 KB Output is correct
39 Correct 200 ms 19284 KB Output is correct
40 Correct 202 ms 19088 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 2 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 40 ms 11972 KB Output is correct
12 Correct 34 ms 12028 KB Output is correct
13 Correct 39 ms 12048 KB Output is correct
14 Correct 48 ms 12020 KB Output is correct
15 Correct 36 ms 12032 KB Output is correct
16 Correct 47 ms 12104 KB Output is correct
17 Correct 40 ms 11864 KB Output is correct
18 Correct 31 ms 12024 KB Output is correct
19 Correct 33 ms 11776 KB Output is correct
20 Correct 34 ms 12120 KB Output is correct
21 Correct 42 ms 12080 KB Output is correct
22 Correct 58 ms 11964 KB Output is correct
23 Correct 33 ms 12020 KB Output is correct
24 Correct 40 ms 12064 KB Output is correct
25 Correct 41 ms 12016 KB Output is correct
26 Correct 29 ms 11768 KB Output is correct
27 Correct 40 ms 12012 KB Output is correct
28 Correct 34 ms 11764 KB Output is correct
29 Correct 37 ms 12020 KB Output is correct
30 Correct 40 ms 11880 KB Output is correct
31 Correct 35 ms 12020 KB Output is correct
32 Correct 43 ms 11864 KB Output is correct
33 Correct 40 ms 11952 KB Output is correct
34 Correct 28 ms 11768 KB Output is correct
35 Correct 38 ms 12020 KB Output is correct
36 Correct 38 ms 12020 KB Output is correct
37 Correct 39 ms 12020 KB Output is correct
38 Correct 37 ms 12020 KB Output is correct
39 Correct 38 ms 12020 KB Output is correct
40 Correct 37 ms 11864 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 2 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 203 ms 17236 KB Output is correct
12 Correct 210 ms 17244 KB Output is correct
13 Correct 174 ms 16160 KB Output is correct
14 Correct 166 ms 16072 KB Output is correct
15 Correct 205 ms 17236 KB Output is correct
16 Correct 187 ms 16384 KB Output is correct
17 Correct 200 ms 16248 KB Output is correct
18 Correct 110 ms 18068 KB Output is correct
19 Correct 157 ms 15072 KB Output is correct
20 Correct 175 ms 16724 KB Output is correct
21 Correct 169 ms 20164 KB Output is correct
22 Correct 249 ms 20324 KB Output is correct
23 Correct 211 ms 19284 KB Output is correct
24 Correct 205 ms 19140 KB Output is correct
25 Correct 195 ms 21064 KB Output is correct
26 Correct 234 ms 19796 KB Output is correct
27 Correct 218 ms 19540 KB Output is correct
28 Correct 125 ms 22100 KB Output is correct
29 Correct 172 ms 18036 KB Output is correct
30 Correct 220 ms 20308 KB Output is correct
31 Correct 250 ms 20128 KB Output is correct
32 Correct 224 ms 20096 KB Output is correct
33 Correct 180 ms 19028 KB Output is correct
34 Correct 204 ms 19192 KB Output is correct
35 Correct 220 ms 19616 KB Output is correct
36 Correct 113 ms 18260 KB Output is correct
37 Correct 213 ms 20176 KB Output is correct
38 Correct 176 ms 18212 KB Output is correct
39 Correct 200 ms 19284 KB Output is correct
40 Correct 202 ms 19088 KB Output is correct
41 Correct 40 ms 11972 KB Output is correct
42 Correct 34 ms 12028 KB Output is correct
43 Correct 39 ms 12048 KB Output is correct
44 Correct 48 ms 12020 KB Output is correct
45 Correct 36 ms 12032 KB Output is correct
46 Correct 47 ms 12104 KB Output is correct
47 Correct 40 ms 11864 KB Output is correct
48 Correct 31 ms 12024 KB Output is correct
49 Correct 33 ms 11776 KB Output is correct
50 Correct 34 ms 12120 KB Output is correct
51 Correct 42 ms 12080 KB Output is correct
52 Correct 58 ms 11964 KB Output is correct
53 Correct 33 ms 12020 KB Output is correct
54 Correct 40 ms 12064 KB Output is correct
55 Correct 41 ms 12016 KB Output is correct
56 Correct 29 ms 11768 KB Output is correct
57 Correct 40 ms 12012 KB Output is correct
58 Correct 34 ms 11764 KB Output is correct
59 Correct 37 ms 12020 KB Output is correct
60 Correct 40 ms 11880 KB Output is correct
61 Correct 35 ms 12020 KB Output is correct
62 Correct 43 ms 11864 KB Output is correct
63 Correct 40 ms 11952 KB Output is correct
64 Correct 28 ms 11768 KB Output is correct
65 Correct 38 ms 12020 KB Output is correct
66 Correct 38 ms 12020 KB Output is correct
67 Correct 39 ms 12020 KB Output is correct
68 Correct 37 ms 12020 KB Output is correct
69 Correct 38 ms 12020 KB Output is correct
70 Correct 37 ms 11864 KB Output is correct
71 Correct 256 ms 36340 KB Output is correct
72 Correct 316 ms 36424 KB Output is correct
73 Correct 323 ms 35064 KB Output is correct
74 Correct 540 ms 35316 KB Output is correct
75 Correct 303 ms 37240 KB Output is correct
76 Correct 517 ms 36604 KB Output is correct
77 Correct 376 ms 35572 KB Output is correct
78 Correct 188 ms 39340 KB Output is correct
79 Correct 262 ms 33268 KB Output is correct
80 Correct 273 ms 36440 KB Output is correct
81 Correct 387 ms 36340 KB Output is correct
82 Correct 526 ms 35368 KB Output is correct
83 Correct 270 ms 34540 KB Output is correct
84 Correct 383 ms 35376 KB Output is correct
85 Correct 392 ms 35572 KB Output is correct
86 Correct 163 ms 33264 KB Output is correct
87 Correct 244 ms 36188 KB Output is correct
88 Correct 249 ms 33268 KB Output is correct
89 Correct 319 ms 34920 KB Output is correct
90 Correct 358 ms 35320 KB Output is correct
91 Correct 268 ms 34548 KB Output is correct
92 Correct 457 ms 35580 KB Output is correct
93 Correct 397 ms 35372 KB Output is correct
94 Correct 153 ms 33300 KB Output is correct
95 Correct 336 ms 35312 KB Output is correct
96 Correct 359 ms 35304 KB Output is correct
97 Correct 363 ms 35316 KB Output is correct
98 Correct 335 ms 35476 KB Output is correct
99 Correct 365 ms 35360 KB Output is correct
100 Correct 364 ms 35412 KB Output is correct