답안 #68735 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
68735	2018-08-18T10:07:00 Z	tmwilliamlin168	Snake Escaping (JOI18_snake_escaping)	C++14	12 / 100	411 ms	66560 KB

snake_escaping

#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

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	456 KB	Output is correct
4	Correct	2 ms	644 KB	Output is correct
5	Correct	3 ms	732 KB	Output is correct
6	Correct	4 ms	732 KB	Output is correct
7	Correct	3 ms	792 KB	Output is correct
8	Correct	3 ms	792 KB	Output is correct
9	Correct	2 ms	792 KB	Output is correct
10	Correct	3 ms	852 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	456 KB	Output is correct
4	Correct	2 ms	644 KB	Output is correct
5	Correct	3 ms	732 KB	Output is correct
6	Correct	4 ms	732 KB	Output is correct
7	Correct	3 ms	792 KB	Output is correct
8	Correct	3 ms	792 KB	Output is correct
9	Correct	2 ms	792 KB	Output is correct
10	Correct	3 ms	852 KB	Output is correct
11	Correct	286 ms	15648 KB	Output is correct
12	Correct	244 ms	17320 KB	Output is correct
13	Correct	286 ms	17320 KB	Output is correct
14	Correct	297 ms	17320 KB	Output is correct
15	Correct	295 ms	18160 KB	Output is correct
16	Correct	323 ms	18160 KB	Output is correct
17	Correct	383 ms	19956 KB	Output is correct
18	Correct	217 ms	21752 KB	Output is correct
19	Correct	265 ms	21752 KB	Output is correct
20	Correct	281 ms	21752 KB	Output is correct

Subtask #3
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	456 KB	Output is correct
4	Correct	2 ms	644 KB	Output is correct
5	Correct	3 ms	732 KB	Output is correct
6	Correct	4 ms	732 KB	Output is correct
7	Correct	3 ms	792 KB	Output is correct
8	Correct	3 ms	792 KB	Output is correct
9	Correct	2 ms	792 KB	Output is correct
10	Correct	3 ms	852 KB	Output is correct
11	Correct	286 ms	15648 KB	Output is correct
12	Correct	244 ms	17320 KB	Output is correct
13	Correct	286 ms	17320 KB	Output is correct
14	Correct	297 ms	17320 KB	Output is correct
15	Correct	295 ms	18160 KB	Output is correct
16	Correct	323 ms	18160 KB	Output is correct
17	Correct	383 ms	19956 KB	Output is correct
18	Correct	217 ms	21752 KB	Output is correct
19	Correct	265 ms	21752 KB	Output is correct
20	Correct	281 ms	21752 KB	Output is correct
21	Correct	304 ms	21752 KB	Output is correct
22	Correct	370 ms	21752 KB	Output is correct
23	Correct	369 ms	21752 KB	Output is correct
24	Correct	367 ms	33572 KB	Output is correct
25	Correct	303 ms	49232 KB	Output is correct
26	Correct	406 ms	61396 KB	Output is correct
27	Runtime error	411 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.
28	Halted	0 ms	0 KB	-

Subtask #4
0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	456 KB	Output is correct
4	Correct	2 ms	644 KB	Output is correct
5	Correct	3 ms	732 KB	Output is correct
6	Correct	4 ms	732 KB	Output is correct
7	Correct	3 ms	792 KB	Output is correct
8	Correct	3 ms	792 KB	Output is correct
9	Correct	2 ms	792 KB	Output is correct
10	Correct	3 ms	852 KB	Output is correct
11	Runtime error	131 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.
12	Halted	0 ms	0 KB	-

Subtask #5
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	456 KB	Output is correct
4	Correct	2 ms	644 KB	Output is correct
5	Correct	3 ms	732 KB	Output is correct
6	Correct	4 ms	732 KB	Output is correct
7	Correct	3 ms	792 KB	Output is correct
8	Correct	3 ms	792 KB	Output is correct
9	Correct	2 ms	792 KB	Output is correct
10	Correct	3 ms	852 KB	Output is correct
11	Correct	286 ms	15648 KB	Output is correct
12	Correct	244 ms	17320 KB	Output is correct
13	Correct	286 ms	17320 KB	Output is correct
14	Correct	297 ms	17320 KB	Output is correct
15	Correct	295 ms	18160 KB	Output is correct
16	Correct	323 ms	18160 KB	Output is correct
17	Correct	383 ms	19956 KB	Output is correct
18	Correct	217 ms	21752 KB	Output is correct
19	Correct	265 ms	21752 KB	Output is correct
20	Correct	281 ms	21752 KB	Output is correct
21	Correct	304 ms	21752 KB	Output is correct
22	Correct	370 ms	21752 KB	Output is correct
23	Correct	369 ms	21752 KB	Output is correct
24	Correct	367 ms	33572 KB	Output is correct
25	Correct	303 ms	49232 KB	Output is correct
26	Correct	406 ms	61396 KB	Output is correct
27	Runtime error	411 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.
28	Halted	0 ms	0 KB	-

답안 #68735

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 0 / 10.0

Subtask #4 0 / 53.0

Subtask #5 0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
0 / 10.0

Subtask #4
0 / 53.0

Subtask #5
0 / 25.0