oj.uz

Submission #619796

# Submission time Handle Problem Language Result Execution time Memory
619796 2022-08-02T15:58:58 Z Do_you_copy Snake Escaping (JOI18_snake_escaping) C++17
100 / 100
 613 ms 39272 KB 
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#define taskname "test"
#define fi first
#define se second
#define pb push_back
#define faster ios_base::sync_with_stdio(0); cin.tie(0);
using namespace std;
using ll = long long;
using ull = unsigned ll;
using ld = long double;
using pii = pair <int, int>;
using pil = pair <int, ll>;
using pli = pair <ll, int>;
using pll = pair <ll, ll>;
mt19937 Rand(chrono::steady_clock::now().time_since_epoch().count());

ll min(const ll &a, const ll &b){
    return (a < b) ? a : b;
}

ll max(const ll &a, const ll &b){
    return (a > b) ? a : b;
}

//const ll Mod = 1000000007;
//const ll Mod2 = 999999999989;
//only use when required
const int maxN = 20;

int n, q;
string s, t;
int dp[(1 << maxN) + 5];
int f[(1 << maxN) + 5];

void WriteInt(int x)
{
    if (x > 9)
        WriteInt(x / 10);
    putchar(x % 10 + '0');
}

inline int inv(int i){
    return ((1 << n) - 1) ^ i;
}


void Init(){
    cin >> n >> q >> s;
    for (int i = 0; i < int(s.length()); ++i){
        dp[i] = s[i] - '0';
        f[inv(i)] = dp[i];
    }
    for (int i = 0; i < n; ++i){
        for (int j = 1; j < 1 << n; ++j){
            if (j & (1 << i)){
                dp[j] += dp[j ^ (1 << i)];
            }
        }
    }
    for (int i = 0; i < n; ++i){
        for (int j = 0; j < 1 << n; ++j){
            if (j & (1 << i)){
                f[j] += f[j ^ (1 << i)];
            }
        }
    }
    int x, y, z;
    int mask1, mask0, tem;
    while (q--){
        cin >> t;
        x = y = z = mask1 = mask0 = tem = 0;
        reverse(t.begin(), t.end());
        for (int i = 0; i < n; ++i){
            if (t[i] == '0') ++x, mask0 ^= 1 << i;
            if (t[i] == '1') ++y, mask1 ^= 1 << i;
            if (t[i] == '?') ++z, tem ^= 1 << i;
        }
        if (z == min(min(x, y), z)){
            //brute all ?s
            int ans = s[mask1] - '0';
            for (int i = tem; i; i = (i - 1) & tem){
                ans += s[i + mask1] - '0';
            }
            WriteInt(ans);
            putchar('\n');
        }
        else if (x == min(x, y)){
            int ans = -f[tem];
            for (int i = mask0; i; i = (i - 1) & mask0){
                bool cnt = __builtin_parity(i);
                if (cnt) ans += f[i + tem];
                else ans -= f[i + tem];
            }
            ans = abs(ans);
            WriteInt(ans);
            putchar('\n');
        }
        else{
            int ans = -dp[tem];
            for (int i = mask1; i; i = (i - 1) & mask1){
                bool cnt = __builtin_parity(i);
                if (cnt) ans += dp[i + tem];
                else ans -= dp[i + tem];
            }
            ans = abs(ans);
            WriteInt(ans);
            putchar('\n');
        }
    }
}


int main(){
    if (fopen(taskname".inp", "r")){
        freopen(taskname".inp", "r", stdin);
        //freopen(taskname".out", "w", stdout);
    }
    faster;
    ll tt = 1;
    //cin >> tt;
    while (tt--){
        Init();
    }
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:117:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  117 |         freopen(taskname".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 154 ms 4296 KB Output is correct
12 Correct 157 ms 3900 KB Output is correct
13 Correct 202 ms 3188 KB Output is correct
14 Correct 175 ms 3324 KB Output is correct
15 Correct 158 ms 4284 KB Output is correct
16 Correct 181 ms 3548 KB Output is correct
17 Correct 185 ms 3492 KB Output is correct
18 Correct 119 ms 5300 KB Output is correct
19 Correct 140 ms 2380 KB Output is correct
20 Correct 160 ms 3968 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 154 ms 4296 KB Output is correct
12 Correct 157 ms 3900 KB Output is correct
13 Correct 202 ms 3188 KB Output is correct
14 Correct 175 ms 3324 KB Output is correct
15 Correct 158 ms 4284 KB Output is correct
16 Correct 181 ms 3548 KB Output is correct
17 Correct 185 ms 3492 KB Output is correct
18 Correct 119 ms 5300 KB Output is correct
19 Correct 140 ms 2380 KB Output is correct
20 Correct 160 ms 3968 KB Output is correct
21 Correct 191 ms 4384 KB Output is correct
22 Correct 210 ms 4528 KB Output is correct
23 Correct 223 ms 3532 KB Output is correct
24 Correct 242 ms 3320 KB Output is correct
25 Correct 199 ms 5352 KB Output is correct
26 Correct 247 ms 3872 KB Output is correct
27 Correct 242 ms 3936 KB Output is correct
28 Correct 154 ms 6412 KB Output is correct
29 Correct 180 ms 2384 KB Output is correct
30 Correct 199 ms 4488 KB Output is correct
31 Correct 231 ms 4364 KB Output is correct
32 Correct 244 ms 4424 KB Output is correct
33 Correct 187 ms 3224 KB Output is correct
34 Correct 238 ms 3368 KB Output is correct
35 Correct 240 ms 3856 KB Output is correct
36 Correct 133 ms 2304 KB Output is correct
37 Correct 186 ms 4324 KB Output is correct
38 Correct 196 ms 2364 KB Output is correct
39 Correct 224 ms 3592 KB Output is correct
40 Correct 237 ms 3388 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 58 ms 10464 KB Output is correct
12 Correct 65 ms 11968 KB Output is correct
13 Correct 63 ms 11892 KB Output is correct
14 Correct 67 ms 11824 KB Output is correct
15 Correct 62 ms 11976 KB Output is correct
16 Correct 71 ms 11844 KB Output is correct
17 Correct 66 ms 11844 KB Output is correct
18 Correct 54 ms 12076 KB Output is correct
19 Correct 53 ms 11816 KB Output is correct
20 Correct 56 ms 11944 KB Output is correct
21 Correct 58 ms 11972 KB Output is correct
22 Correct 63 ms 11860 KB Output is correct
23 Correct 58 ms 11848 KB Output is correct
24 Correct 65 ms 11844 KB Output is correct
25 Correct 65 ms 11868 KB Output is correct
26 Correct 48 ms 11712 KB Output is correct
27 Correct 58 ms 12008 KB Output is correct
28 Correct 55 ms 11828 KB Output is correct
29 Correct 58 ms 11892 KB Output is correct
30 Correct 59 ms 11844 KB Output is correct
31 Correct 57 ms 11788 KB Output is correct
32 Correct 68 ms 11884 KB Output is correct
33 Correct 70 ms 11840 KB Output is correct
34 Correct 49 ms 11716 KB Output is correct
35 Correct 60 ms 11876 KB Output is correct
36 Correct 61 ms 11860 KB Output is correct
37 Correct 60 ms 11832 KB Output is correct
38 Correct 75 ms 11936 KB Output is correct
39 Correct 63 ms 11840 KB Output is correct
40 Correct 59 ms 11840 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 154 ms 4296 KB Output is correct
12 Correct 157 ms 3900 KB Output is correct
13 Correct 202 ms 3188 KB Output is correct
14 Correct 175 ms 3324 KB Output is correct
15 Correct 158 ms 4284 KB Output is correct
16 Correct 181 ms 3548 KB Output is correct
17 Correct 185 ms 3492 KB Output is correct
18 Correct 119 ms 5300 KB Output is correct
19 Correct 140 ms 2380 KB Output is correct
20 Correct 160 ms 3968 KB Output is correct
21 Correct 191 ms 4384 KB Output is correct
22 Correct 210 ms 4528 KB Output is correct
23 Correct 223 ms 3532 KB Output is correct
24 Correct 242 ms 3320 KB Output is correct
25 Correct 199 ms 5352 KB Output is correct
26 Correct 247 ms 3872 KB Output is correct
27 Correct 242 ms 3936 KB Output is correct
28 Correct 154 ms 6412 KB Output is correct
29 Correct 180 ms 2384 KB Output is correct
30 Correct 199 ms 4488 KB Output is correct
31 Correct 231 ms 4364 KB Output is correct
32 Correct 244 ms 4424 KB Output is correct
33 Correct 187 ms 3224 KB Output is correct
34 Correct 238 ms 3368 KB Output is correct
35 Correct 240 ms 3856 KB Output is correct
36 Correct 133 ms 2304 KB Output is correct
37 Correct 186 ms 4324 KB Output is correct
38 Correct 196 ms 2364 KB Output is correct
39 Correct 224 ms 3592 KB Output is correct
40 Correct 237 ms 3388 KB Output is correct
41 Correct 58 ms 10464 KB Output is correct
42 Correct 65 ms 11968 KB Output is correct
43 Correct 63 ms 11892 KB Output is correct
44 Correct 67 ms 11824 KB Output is correct
45 Correct 62 ms 11976 KB Output is correct
46 Correct 71 ms 11844 KB Output is correct
47 Correct 66 ms 11844 KB Output is correct
48 Correct 54 ms 12076 KB Output is correct
49 Correct 53 ms 11816 KB Output is correct
50 Correct 56 ms 11944 KB Output is correct
51 Correct 58 ms 11972 KB Output is correct
52 Correct 63 ms 11860 KB Output is correct
53 Correct 58 ms 11848 KB Output is correct
54 Correct 65 ms 11844 KB Output is correct
55 Correct 65 ms 11868 KB Output is correct
56 Correct 48 ms 11712 KB Output is correct
57 Correct 58 ms 12008 KB Output is correct
58 Correct 55 ms 11828 KB Output is correct
59 Correct 58 ms 11892 KB Output is correct
60 Correct 59 ms 11844 KB Output is correct
61 Correct 57 ms 11788 KB Output is correct
62 Correct 68 ms 11884 KB Output is correct
63 Correct 70 ms 11840 KB Output is correct
64 Correct 49 ms 11716 KB Output is correct
65 Correct 60 ms 11876 KB Output is correct
66 Correct 61 ms 11860 KB Output is correct
67 Correct 60 ms 11832 KB Output is correct
68 Correct 75 ms 11936 KB Output is correct
69 Correct 63 ms 11840 KB Output is correct
70 Correct 59 ms 11840 KB Output is correct
71 Correct 346 ms 36288 KB Output is correct
72 Correct 360 ms 36568 KB Output is correct
73 Correct 394 ms 34908 KB Output is correct
74 Correct 583 ms 35328 KB Output is correct
75 Correct 344 ms 37204 KB Output is correct
76 Correct 561 ms 35536 KB Output is correct
77 Correct 550 ms 35384 KB Output is correct
78 Correct 249 ms 39272 KB Output is correct
79 Correct 313 ms 33164 KB Output is correct
80 Correct 372 ms 36420 KB Output is correct
81 Correct 439 ms 36340 KB Output is correct
82 Correct 496 ms 35200 KB Output is correct
83 Correct 306 ms 34420 KB Output is correct
84 Correct 480 ms 35200 KB Output is correct
85 Correct 524 ms 35380 KB Output is correct
86 Correct 214 ms 33228 KB Output is correct
87 Correct 330 ms 36192 KB Output is correct
88 Correct 304 ms 33260 KB Output is correct
89 Correct 393 ms 34944 KB Output is correct
90 Correct 432 ms 35364 KB Output is correct
91 Correct 338 ms 34392 KB Output is correct
92 Correct 613 ms 35564 KB Output is correct
93 Correct 515 ms 35412 KB Output is correct
94 Correct 220 ms 33240 KB Output is correct
95 Correct 451 ms 35308 KB Output is correct
96 Correct 475 ms 35328 KB Output is correct
97 Correct 467 ms 35288 KB Output is correct
98 Correct 461 ms 35368 KB Output is correct
99 Correct 467 ms 35284 KB Output is correct
100 Correct 457 ms 35376 KB Output is correct