oj.uz

Submission #68750

# Submission time Handle Problem Language Result Execution time Memory
68750 2018-08-18T10:23:53 Z tmwilliamlin168 Snake Escaping (JOI18_snake_escaping) C++14
75 / 100
 1660 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 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 2 ms 636 KB Output is correct
6 Correct 3 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 2 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 2 ms 636 KB Output is correct
6 Correct 3 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 2 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 242 ms 5048 KB Output is correct
12 Correct 257 ms 5080 KB Output is correct
13 Correct 293 ms 5080 KB Output is correct
14 Correct 274 ms 5080 KB Output is correct
15 Correct 263 ms 5620 KB Output is correct
16 Correct 294 ms 5620 KB Output is correct
17 Correct 296 ms 5624 KB Output is correct
18 Correct 199 ms 7316 KB Output is correct
19 Correct 234 ms 7316 KB Output is correct
20 Correct 298 ms 7316 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 2 ms 636 KB Output is correct
6 Correct 3 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 2 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 242 ms 5048 KB Output is correct
12 Correct 257 ms 5080 KB Output is correct
13 Correct 293 ms 5080 KB Output is correct
14 Correct 274 ms 5080 KB Output is correct
15 Correct 263 ms 5620 KB Output is correct
16 Correct 294 ms 5620 KB Output is correct
17 Correct 296 ms 5624 KB Output is correct
18 Correct 199 ms 7316 KB Output is correct
19 Correct 234 ms 7316 KB Output is correct
20 Correct 298 ms 7316 KB Output is correct
21 Correct 287 ms 7316 KB Output is correct
22 Correct 332 ms 7316 KB Output is correct
23 Correct 353 ms 7316 KB Output is correct
24 Correct 324 ms 7316 KB Output is correct
25 Correct 369 ms 7656 KB Output is correct
26 Correct 483 ms 7656 KB Output is correct
27 Correct 347 ms 7656 KB Output is correct
28 Correct 223 ms 8932 KB Output is correct
29 Correct 309 ms 8932 KB Output is correct
30 Correct 315 ms 8932 KB Output is correct
31 Correct 361 ms 8932 KB Output is correct
32 Correct 450 ms 8932 KB Output is correct
33 Correct 335 ms 8932 KB Output is correct
34 Correct 360 ms 8932 KB Output is correct
35 Correct 362 ms 8932 KB Output is correct
36 Correct 217 ms 8932 KB Output is correct
37 Correct 314 ms 8932 KB Output is correct
38 Correct 274 ms 8932 KB Output is correct
39 Correct 337 ms 8932 KB Output is correct
40 Correct 331 ms 8932 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 2 ms 636 KB Output is correct
6 Correct 3 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 2 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 114 ms 13096 KB Output is correct
12 Correct 114 ms 13096 KB Output is correct
13 Correct 123 ms 13096 KB Output is correct
14 Correct 218 ms 13096 KB Output is correct
15 Correct 116 ms 13096 KB Output is correct
16 Correct 166 ms 13096 KB Output is correct
17 Correct 165 ms 13096 KB Output is correct
18 Correct 115 ms 13136 KB Output is correct
19 Correct 152 ms 13136 KB Output is correct
20 Correct 133 ms 13136 KB Output is correct
21 Correct 134 ms 13136 KB Output is correct
22 Correct 154 ms 13136 KB Output is correct
23 Correct 120 ms 13136 KB Output is correct
24 Correct 138 ms 13136 KB Output is correct
25 Correct 146 ms 13136 KB Output is correct
26 Correct 109 ms 13144 KB Output is correct
27 Correct 113 ms 13192 KB Output is correct
28 Correct 114 ms 13192 KB Output is correct
29 Correct 126 ms 13316 KB Output is correct
30 Correct 114 ms 13316 KB Output is correct
31 Correct 115 ms 13316 KB Output is correct
32 Correct 148 ms 13316 KB Output is correct
33 Correct 145 ms 13316 KB Output is correct
34 Correct 101 ms 13316 KB Output is correct
35 Correct 136 ms 13316 KB Output is correct
36 Correct 156 ms 13316 KB Output is correct
37 Correct 134 ms 13320 KB Output is correct
38 Correct 152 ms 13320 KB Output is correct
39 Correct 134 ms 13320 KB Output is correct
40 Correct 136 ms 13320 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 2 ms 636 KB Output is correct
6 Correct 3 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 2 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 242 ms 5048 KB Output is correct
12 Correct 257 ms 5080 KB Output is correct
13 Correct 293 ms 5080 KB Output is correct
14 Correct 274 ms 5080 KB Output is correct
15 Correct 263 ms 5620 KB Output is correct
16 Correct 294 ms 5620 KB Output is correct
17 Correct 296 ms 5624 KB Output is correct
18 Correct 199 ms 7316 KB Output is correct
19 Correct 234 ms 7316 KB Output is correct
20 Correct 298 ms 7316 KB Output is correct
21 Correct 287 ms 7316 KB Output is correct
22 Correct 332 ms 7316 KB Output is correct
23 Correct 353 ms 7316 KB Output is correct
24 Correct 324 ms 7316 KB Output is correct
25 Correct 369 ms 7656 KB Output is correct
26 Correct 483 ms 7656 KB Output is correct
27 Correct 347 ms 7656 KB Output is correct
28 Correct 223 ms 8932 KB Output is correct
29 Correct 309 ms 8932 KB Output is correct
30 Correct 315 ms 8932 KB Output is correct
31 Correct 361 ms 8932 KB Output is correct
32 Correct 450 ms 8932 KB Output is correct
33 Correct 335 ms 8932 KB Output is correct
34 Correct 360 ms 8932 KB Output is correct
35 Correct 362 ms 8932 KB Output is correct
36 Correct 217 ms 8932 KB Output is correct
37 Correct 314 ms 8932 KB Output is correct
38 Correct 274 ms 8932 KB Output is correct
39 Correct 337 ms 8932 KB Output is correct
40 Correct 331 ms 8932 KB Output is correct
41 Correct 114 ms 13096 KB Output is correct
42 Correct 114 ms 13096 KB Output is correct
43 Correct 123 ms 13096 KB Output is correct
44 Correct 218 ms 13096 KB Output is correct
45 Correct 116 ms 13096 KB Output is correct
46 Correct 166 ms 13096 KB Output is correct
47 Correct 165 ms 13096 KB Output is correct
48 Correct 115 ms 13136 KB Output is correct
49 Correct 152 ms 13136 KB Output is correct
50 Correct 133 ms 13136 KB Output is correct
51 Correct 134 ms 13136 KB Output is correct
52 Correct 154 ms 13136 KB Output is correct
53 Correct 120 ms 13136 KB Output is correct
54 Correct 138 ms 13136 KB Output is correct
55 Correct 146 ms 13136 KB Output is correct
56 Correct 109 ms 13144 KB Output is correct
57 Correct 113 ms 13192 KB Output is correct
58 Correct 114 ms 13192 KB Output is correct
59 Correct 126 ms 13316 KB Output is correct
60 Correct 114 ms 13316 KB Output is correct
61 Correct 115 ms 13316 KB Output is correct
62 Correct 148 ms 13316 KB Output is correct
63 Correct 145 ms 13316 KB Output is correct
64 Correct 101 ms 13316 KB Output is correct
65 Correct 136 ms 13316 KB Output is correct
66 Correct 156 ms 13316 KB Output is correct
67 Correct 134 ms 13320 KB Output is correct
68 Correct 152 ms 13320 KB Output is correct
69 Correct 134 ms 13320 KB Output is correct
70 Correct 136 ms 13320 KB Output is correct
71 Correct 631 ms 17984 KB Output is correct
72 Correct 781 ms 18812 KB Output is correct
73 Correct 969 ms 18812 KB Output is correct
74 Correct 1660 ms 18812 KB Output is correct
75 Correct 655 ms 19632 KB Output is correct
76 Correct 1423 ms 19632 KB Output is correct
77 Correct 1103 ms 19632 KB Output is correct
78 Correct 407 ms 34676 KB Output is correct
79 Correct 536 ms 34676 KB Output is correct
80 Correct 684 ms 34676 KB Output is correct
81 Correct 1130 ms 34676 KB Output is correct
82 Correct 1617 ms 52712 KB Output is correct
83 Runtime error 601 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.
84 Halted 0 ms 0 KB -