oj.uz

Submission #68746

# Submission time Handle Problem Language Result Execution time Memory
68746 2018-08-18T10:21:07 Z tmwilliamlin168 Snake Escaping (JOI18_snake_escaping) C++14
75 / 100
 1620 ms 66560 KB 
#include <bits/stdc++.h>
using namespace std;

const int mxL=20, mxQ=1e6;
int l, q, dp[2][1<<mxL];
string s;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> l >> q >> s;
	for(int j=0; j<2; ++j) {
		for(int i=0; i<1<<l; ++i)
			dp[j][i]=s[i]-'0';
		for(int k=0; k<l; ++k)
			for(int i=0; i<1<<l; ++i)
				if(i>>k&1^j)
					dp[j][i]+=dp[j][i^1<<k];
	}
	while(q--) {
		string t;
		cin >> t;
		int na=0, nb=0, nc=0, ma=0, mb=0, mc=0, ans=0;
		for(int i=0; i<l; ++i) {
			if(t[i]=='0') {
				++na;
				ma|=1<<(l-1-i);
			} else if(t[i]=='1') {
				++nb;
				mb|=1<<(l-1-i);
			} else {
				++nc;
				mc|=1<<(l-1-i);
			}
		}
		if(na<nc||nb<nc) {
			bool sw=0;
			if(nb>na) {
				swap(nb, na);
				swap(mb, ma);
				sw=1;
			}
			for(int i=mb; ; i=(i-1)&mb) {
				ans+=dp[sw][(sw?(1<<l)-1:0)^i^mb^mc]*(__builtin_popcount(i)&1?-1:1);
				if(!i)
					break;
			}
		} else {
			for(int i=mc; ; i=(i-1)&mc) {
				ans+=s[i|mb]-'0';
				if(!i)
					break;
			}
		}
		cout << ans << "\n";
	}
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:18:12: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
     if(i>>k&1^j)
        ~~~~^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 4 ms 560 KB Output is correct
3 Correct 3 ms 560 KB Output is correct
4 Correct 3 ms 560 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 3 ms 600 KB Output is correct
7 Correct 3 ms 652 KB Output is correct
8 Correct 3 ms 652 KB Output is correct
9 Correct 3 ms 652 KB Output is correct
10 Correct 3 ms 692 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 4 ms 560 KB Output is correct
3 Correct 3 ms 560 KB Output is correct
4 Correct 3 ms 560 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 3 ms 600 KB Output is correct
7 Correct 3 ms 652 KB Output is correct
8 Correct 3 ms 652 KB Output is correct
9 Correct 3 ms 652 KB Output is correct
10 Correct 3 ms 692 KB Output is correct
11 Correct 270 ms 6100 KB Output is correct
12 Correct 300 ms 6172 KB Output is correct
13 Correct 350 ms 6172 KB Output is correct
14 Correct 338 ms 6576 KB Output is correct
15 Correct 299 ms 7472 KB Output is correct
16 Correct 321 ms 7472 KB Output is correct
17 Correct 349 ms 8812 KB Output is correct
18 Correct 222 ms 10628 KB Output is correct
19 Correct 240 ms 10628 KB Output is correct
20 Correct 254 ms 10628 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 4 ms 560 KB Output is correct
3 Correct 3 ms 560 KB Output is correct
4 Correct 3 ms 560 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 3 ms 600 KB Output is correct
7 Correct 3 ms 652 KB Output is correct
8 Correct 3 ms 652 KB Output is correct
9 Correct 3 ms 652 KB Output is correct
10 Correct 3 ms 692 KB Output is correct
11 Correct 270 ms 6100 KB Output is correct
12 Correct 300 ms 6172 KB Output is correct
13 Correct 350 ms 6172 KB Output is correct
14 Correct 338 ms 6576 KB Output is correct
15 Correct 299 ms 7472 KB Output is correct
16 Correct 321 ms 7472 KB Output is correct
17 Correct 349 ms 8812 KB Output is correct
18 Correct 222 ms 10628 KB Output is correct
19 Correct 240 ms 10628 KB Output is correct
20 Correct 254 ms 10628 KB Output is correct
21 Correct 272 ms 10628 KB Output is correct
22 Correct 291 ms 10628 KB Output is correct
23 Correct 385 ms 10628 KB Output is correct
24 Correct 342 ms 10628 KB Output is correct
25 Correct 298 ms 10852 KB Output is correct
26 Correct 378 ms 10852 KB Output is correct
27 Correct 334 ms 10852 KB Output is correct
28 Correct 238 ms 13028 KB Output is correct
29 Correct 282 ms 13028 KB Output is correct
30 Correct 289 ms 13028 KB Output is correct
31 Correct 341 ms 13028 KB Output is correct
32 Correct 432 ms 13028 KB Output is correct
33 Correct 317 ms 13028 KB Output is correct
34 Correct 389 ms 13028 KB Output is correct
35 Correct 415 ms 13028 KB Output is correct
36 Correct 199 ms 13028 KB Output is correct
37 Correct 295 ms 13028 KB Output is correct
38 Correct 261 ms 13028 KB Output is correct
39 Correct 338 ms 13028 KB Output is correct
40 Correct 355 ms 13028 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 4 ms 560 KB Output is correct
3 Correct 3 ms 560 KB Output is correct
4 Correct 3 ms 560 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 3 ms 600 KB Output is correct
7 Correct 3 ms 652 KB Output is correct
8 Correct 3 ms 652 KB Output is correct
9 Correct 3 ms 652 KB Output is correct
10 Correct 3 ms 692 KB Output is correct
11 Correct 107 ms 17764 KB Output is correct
12 Correct 127 ms 17892 KB Output is correct
13 Correct 120 ms 17892 KB Output is correct
14 Correct 149 ms 17892 KB Output is correct
15 Correct 129 ms 17892 KB Output is correct
16 Correct 163 ms 17892 KB Output is correct
17 Correct 177 ms 17892 KB Output is correct
18 Correct 101 ms 17900 KB Output is correct
19 Correct 121 ms 17900 KB Output is correct
20 Correct 144 ms 17900 KB Output is correct
21 Correct 125 ms 17900 KB Output is correct
22 Correct 186 ms 17900 KB Output is correct
23 Correct 103 ms 17900 KB Output is correct
24 Correct 120 ms 17900 KB Output is correct
25 Correct 167 ms 17900 KB Output is correct
26 Correct 97 ms 18220 KB Output is correct
27 Correct 101 ms 18368 KB Output is correct
28 Correct 111 ms 18368 KB Output is correct
29 Correct 108 ms 18368 KB Output is correct
30 Correct 106 ms 18368 KB Output is correct
31 Correct 104 ms 18368 KB Output is correct
32 Correct 127 ms 18368 KB Output is correct
33 Correct 123 ms 18368 KB Output is correct
34 Correct 96 ms 18368 KB Output is correct
35 Correct 148 ms 18368 KB Output is correct
36 Correct 123 ms 18396 KB Output is correct
37 Correct 128 ms 18396 KB Output is correct
38 Correct 115 ms 18396 KB Output is correct
39 Correct 112 ms 18396 KB Output is correct
40 Correct 122 ms 18432 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 4 ms 560 KB Output is correct
3 Correct 3 ms 560 KB Output is correct
4 Correct 3 ms 560 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 3 ms 600 KB Output is correct
7 Correct 3 ms 652 KB Output is correct
8 Correct 3 ms 652 KB Output is correct
9 Correct 3 ms 652 KB Output is correct
10 Correct 3 ms 692 KB Output is correct
11 Correct 270 ms 6100 KB Output is correct
12 Correct 300 ms 6172 KB Output is correct
13 Correct 350 ms 6172 KB Output is correct
14 Correct 338 ms 6576 KB Output is correct
15 Correct 299 ms 7472 KB Output is correct
16 Correct 321 ms 7472 KB Output is correct
17 Correct 349 ms 8812 KB Output is correct
18 Correct 222 ms 10628 KB Output is correct
19 Correct 240 ms 10628 KB Output is correct
20 Correct 254 ms 10628 KB Output is correct
21 Correct 272 ms 10628 KB Output is correct
22 Correct 291 ms 10628 KB Output is correct
23 Correct 385 ms 10628 KB Output is correct
24 Correct 342 ms 10628 KB Output is correct
25 Correct 298 ms 10852 KB Output is correct
26 Correct 378 ms 10852 KB Output is correct
27 Correct 334 ms 10852 KB Output is correct
28 Correct 238 ms 13028 KB Output is correct
29 Correct 282 ms 13028 KB Output is correct
30 Correct 289 ms 13028 KB Output is correct
31 Correct 341 ms 13028 KB Output is correct
32 Correct 432 ms 13028 KB Output is correct
33 Correct 317 ms 13028 KB Output is correct
34 Correct 389 ms 13028 KB Output is correct
35 Correct 415 ms 13028 KB Output is correct
36 Correct 199 ms 13028 KB Output is correct
37 Correct 295 ms 13028 KB Output is correct
38 Correct 261 ms 13028 KB Output is correct
39 Correct 338 ms 13028 KB Output is correct
40 Correct 355 ms 13028 KB Output is correct
41 Correct 107 ms 17764 KB Output is correct
42 Correct 127 ms 17892 KB Output is correct
43 Correct 120 ms 17892 KB Output is correct
44 Correct 149 ms 17892 KB Output is correct
45 Correct 129 ms 17892 KB Output is correct
46 Correct 163 ms 17892 KB Output is correct
47 Correct 177 ms 17892 KB Output is correct
48 Correct 101 ms 17900 KB Output is correct
49 Correct 121 ms 17900 KB Output is correct
50 Correct 144 ms 17900 KB Output is correct
51 Correct 125 ms 17900 KB Output is correct
52 Correct 186 ms 17900 KB Output is correct
53 Correct 103 ms 17900 KB Output is correct
54 Correct 120 ms 17900 KB Output is correct
55 Correct 167 ms 17900 KB Output is correct
56 Correct 97 ms 18220 KB Output is correct
57 Correct 101 ms 18368 KB Output is correct
58 Correct 111 ms 18368 KB Output is correct
59 Correct 108 ms 18368 KB Output is correct
60 Correct 106 ms 18368 KB Output is correct
61 Correct 104 ms 18368 KB Output is correct
62 Correct 127 ms 18368 KB Output is correct
63 Correct 123 ms 18368 KB Output is correct
64 Correct 96 ms 18368 KB Output is correct
65 Correct 148 ms 18368 KB Output is correct
66 Correct 123 ms 18396 KB Output is correct
67 Correct 128 ms 18396 KB Output is correct
68 Correct 115 ms 18396 KB Output is correct
69 Correct 112 ms 18396 KB Output is correct
70 Correct 122 ms 18432 KB Output is correct
71 Correct 560 ms 23120 KB Output is correct
72 Correct 666 ms 28736 KB Output is correct
73 Correct 809 ms 28736 KB Output is correct
74 Correct 1620 ms 28736 KB Output is correct
75 Correct 657 ms 29796 KB Output is correct
76 Correct 1496 ms 29796 KB Output is correct
77 Correct 1072 ms 29796 KB Output is correct
78 Correct 409 ms 53208 KB Output is correct
79 Runtime error 653 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
80 Halted 0 ms 0 KB -