oj.uz

Submission #810217

# Submission time Handle Problem Language Result Execution time Memory
810217 2023-08-06T06:39:43 Z QwertyPi Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 849 ms 55592 KB 
#include <bits/stdc++.h>
using namespace std;

int ans[1 << 20];
int f(char c){
    if(c == '0') return 0;
    if(c == '1') return 1;
    if(c == '?') return 2;
    return -1;
}

vector<pair<long long, int>> Q;
void solve(int L, int* a, int l, int r){
    if(l == r) return;
    if(L == 0){
        for(int i = l; i < r; i++){
            ans[Q[i].second] = a[0];
        }
        return;
    }
    int mid_0 = l; while(mid_0 < r && (Q[mid_0].first & (3LL << (L - 1) * 2)) == 0) mid_0++;
    int mid_1 = mid_0; while(mid_1 < r && ((Q[mid_1].first & (3LL << (L - 1) * 2)) >> (L - 1) * 2) == 1) mid_1++;
    // 0
    solve(L - 1, a, l, mid_0);
    // 1
    solve(L - 1, a + (1 << L - 1), mid_0, mid_1);
    // ?
    for(int i = 0; i < (1 << L - 1); i++) a[i] += a[i + (1 << L - 1)];
    solve(L - 1, a, mid_1, r);
    for(int i = 0; i < (1 << L - 1); i++) a[i] -= a[i + (1 << L - 1)];
}

int a[1 << 20];
int32_t main(){
    cin.tie(0); cout.tie(0)->sync_with_stdio(false);
    int L, q; cin >> L >> q; string s; cin >> s;
    for(int i = 0; i < (1 << L); i++) a[i] = s[i] - '0';
    for(int i = 0; i < q; i++){
        string s; cin >> s; reverse(s.begin(), s.end());
        long long b = 0;
        for(int j = 0; j < L; j++){
            b |= f(s[j]) * (1LL << j * 2);
        }
        Q.push_back({b, i});
    }
    sort(Q.begin(), Q.end());
    solve(L, a, 0, Q.size());

    for(int i = 0; i < q; i++){
        cout << ans[i] << '\n';
    }
}

Compilation message

snake_escaping.cpp: In function 'void solve(int, int*, int, int)':
snake_escaping.cpp:26:30: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   26 |     solve(L - 1, a + (1 << L - 1), mid_0, mid_1);
      |                            ~~^~~
snake_escaping.cpp:28:32: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   28 |     for(int i = 0; i < (1 << L - 1); i++) a[i] += a[i + (1 << L - 1)];
      |                              ~~^~~
snake_escaping.cpp:28:65: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   28 |     for(int i = 0; i < (1 << L - 1); i++) a[i] += a[i + (1 << L - 1)];
      |                                                               ~~^~~
snake_escaping.cpp:30:32: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   30 |     for(int i = 0; i < (1 << L - 1); i++) a[i] -= a[i + (1 << L - 1)];
      |                              ~~^~~
snake_escaping.cpp:30:65: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   30 |     for(int i = 0; i < (1 << L - 1); i++) a[i] -= a[i + (1 << L - 1)];
      |                                                               ~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 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 1 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 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 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 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 261 ms 23960 KB Output is correct
12 Correct 270 ms 23596 KB Output is correct
13 Correct 276 ms 22872 KB Output is correct
14 Correct 282 ms 22984 KB Output is correct
15 Correct 265 ms 23976 KB Output is correct
16 Correct 282 ms 23248 KB Output is correct
17 Correct 293 ms 23152 KB Output is correct
18 Correct 154 ms 25060 KB Output is correct
19 Correct 253 ms 21976 KB Output is correct
20 Correct 271 ms 23640 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 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 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 261 ms 23960 KB Output is correct
12 Correct 270 ms 23596 KB Output is correct
13 Correct 276 ms 22872 KB Output is correct
14 Correct 282 ms 22984 KB Output is correct
15 Correct 265 ms 23976 KB Output is correct
16 Correct 282 ms 23248 KB Output is correct
17 Correct 293 ms 23152 KB Output is correct
18 Correct 154 ms 25060 KB Output is correct
19 Correct 253 ms 21976 KB Output is correct
20 Correct 271 ms 23640 KB Output is correct
21 Correct 306 ms 24000 KB Output is correct
22 Correct 291 ms 24264 KB Output is correct
23 Correct 310 ms 23276 KB Output is correct
24 Correct 313 ms 23072 KB Output is correct
25 Correct 290 ms 25000 KB Output is correct
26 Correct 311 ms 23608 KB Output is correct
27 Correct 317 ms 23448 KB Output is correct
28 Correct 158 ms 26044 KB Output is correct
29 Correct 273 ms 22032 KB Output is correct
30 Correct 299 ms 24196 KB Output is correct
31 Correct 302 ms 24080 KB Output is correct
32 Correct 299 ms 24008 KB Output is correct
33 Correct 288 ms 22864 KB Output is correct
34 Correct 305 ms 23108 KB Output is correct
35 Correct 316 ms 23468 KB Output is correct
36 Correct 161 ms 22056 KB Output is correct
37 Correct 271 ms 24100 KB Output is correct
38 Correct 283 ms 21988 KB Output is correct
39 Correct 305 ms 23216 KB Output is correct
40 Correct 302 ms 23108 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 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 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 31 ms 7660 KB Output is correct
12 Correct 33 ms 9724 KB Output is correct
13 Correct 101 ms 9656 KB Output is correct
14 Correct 114 ms 9652 KB Output is correct
15 Correct 74 ms 9784 KB Output is correct
16 Correct 130 ms 9652 KB Output is correct
17 Correct 120 ms 9664 KB Output is correct
18 Correct 17 ms 9884 KB Output is correct
19 Correct 31 ms 9528 KB Output is correct
20 Correct 32 ms 9796 KB Output is correct
21 Correct 99 ms 9708 KB Output is correct
22 Correct 110 ms 9656 KB Output is correct
23 Correct 74 ms 9656 KB Output is correct
24 Correct 113 ms 9648 KB Output is correct
25 Correct 134 ms 9668 KB Output is correct
26 Correct 16 ms 9608 KB Output is correct
27 Correct 31 ms 9780 KB Output is correct
28 Correct 34 ms 9620 KB Output is correct
29 Correct 105 ms 9664 KB Output is correct
30 Correct 110 ms 9652 KB Output is correct
31 Correct 77 ms 9660 KB Output is correct
32 Correct 115 ms 9728 KB Output is correct
33 Correct 118 ms 9660 KB Output is correct
34 Correct 17 ms 9584 KB Output is correct
35 Correct 103 ms 9652 KB Output is correct
36 Correct 107 ms 9656 KB Output is correct
37 Correct 106 ms 9720 KB Output is correct
38 Correct 107 ms 9656 KB Output is correct
39 Correct 104 ms 9660 KB Output is correct
40 Correct 103 ms 9664 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 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 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 261 ms 23960 KB Output is correct
12 Correct 270 ms 23596 KB Output is correct
13 Correct 276 ms 22872 KB Output is correct
14 Correct 282 ms 22984 KB Output is correct
15 Correct 265 ms 23976 KB Output is correct
16 Correct 282 ms 23248 KB Output is correct
17 Correct 293 ms 23152 KB Output is correct
18 Correct 154 ms 25060 KB Output is correct
19 Correct 253 ms 21976 KB Output is correct
20 Correct 271 ms 23640 KB Output is correct
21 Correct 306 ms 24000 KB Output is correct
22 Correct 291 ms 24264 KB Output is correct
23 Correct 310 ms 23276 KB Output is correct
24 Correct 313 ms 23072 KB Output is correct
25 Correct 290 ms 25000 KB Output is correct
26 Correct 311 ms 23608 KB Output is correct
27 Correct 317 ms 23448 KB Output is correct
28 Correct 158 ms 26044 KB Output is correct
29 Correct 273 ms 22032 KB Output is correct
30 Correct 299 ms 24196 KB Output is correct
31 Correct 302 ms 24080 KB Output is correct
32 Correct 299 ms 24008 KB Output is correct
33 Correct 288 ms 22864 KB Output is correct
34 Correct 305 ms 23108 KB Output is correct
35 Correct 316 ms 23468 KB Output is correct
36 Correct 161 ms 22056 KB Output is correct
37 Correct 271 ms 24100 KB Output is correct
38 Correct 283 ms 21988 KB Output is correct
39 Correct 305 ms 23216 KB Output is correct
40 Correct 302 ms 23108 KB Output is correct
41 Correct 31 ms 7660 KB Output is correct
42 Correct 33 ms 9724 KB Output is correct
43 Correct 101 ms 9656 KB Output is correct
44 Correct 114 ms 9652 KB Output is correct
45 Correct 74 ms 9784 KB Output is correct
46 Correct 130 ms 9652 KB Output is correct
47 Correct 120 ms 9664 KB Output is correct
48 Correct 17 ms 9884 KB Output is correct
49 Correct 31 ms 9528 KB Output is correct
50 Correct 32 ms 9796 KB Output is correct
51 Correct 99 ms 9708 KB Output is correct
52 Correct 110 ms 9656 KB Output is correct
53 Correct 74 ms 9656 KB Output is correct
54 Correct 113 ms 9648 KB Output is correct
55 Correct 134 ms 9668 KB Output is correct
56 Correct 16 ms 9608 KB Output is correct
57 Correct 31 ms 9780 KB Output is correct
58 Correct 34 ms 9620 KB Output is correct
59 Correct 105 ms 9664 KB Output is correct
60 Correct 110 ms 9652 KB Output is correct
61 Correct 77 ms 9660 KB Output is correct
62 Correct 115 ms 9728 KB Output is correct
63 Correct 118 ms 9660 KB Output is correct
64 Correct 17 ms 9584 KB Output is correct
65 Correct 103 ms 9652 KB Output is correct
66 Correct 107 ms 9656 KB Output is correct
67 Correct 106 ms 9720 KB Output is correct
68 Correct 107 ms 9656 KB Output is correct
69 Correct 104 ms 9660 KB Output is correct
70 Correct 103 ms 9664 KB Output is correct
71 Correct 387 ms 52560 KB Output is correct
72 Correct 405 ms 52720 KB Output is correct
73 Correct 697 ms 51296 KB Output is correct
74 Correct 729 ms 51608 KB Output is correct
75 Correct 504 ms 53552 KB Output is correct
76 Correct 767 ms 51880 KB Output is correct
77 Correct 830 ms 51736 KB Output is correct
78 Correct 228 ms 55592 KB Output is correct
79 Correct 388 ms 49548 KB Output is correct
80 Correct 389 ms 52716 KB Output is correct
81 Correct 669 ms 52608 KB Output is correct
82 Correct 773 ms 51604 KB Output is correct
83 Correct 549 ms 50880 KB Output is correct
84 Correct 773 ms 51624 KB Output is correct
85 Correct 814 ms 51812 KB Output is correct
86 Correct 219 ms 49624 KB Output is correct
87 Correct 386 ms 52708 KB Output is correct
88 Correct 404 ms 49544 KB Output is correct
89 Correct 683 ms 51344 KB Output is correct
90 Correct 789 ms 51540 KB Output is correct
91 Correct 542 ms 50716 KB Output is correct
92 Correct 766 ms 51848 KB Output is correct
93 Correct 849 ms 51808 KB Output is correct
94 Correct 243 ms 49576 KB Output is correct
95 Correct 722 ms 51620 KB Output is correct
96 Correct 718 ms 51672 KB Output is correct
97 Correct 731 ms 51732 KB Output is correct
98 Correct 712 ms 51736 KB Output is correct
99 Correct 720 ms 51660 KB Output is correct
100 Correct 698 ms 51768 KB Output is correct