#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)
~~~~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
3 ms |
496 KB |
Output is correct |
| 3 |
Correct |
3 ms |
688 KB |
Output is correct |
| 4 |
Correct |
3 ms |
688 KB |
Output is correct |
| 5 |
Correct |
3 ms |
688 KB |
Output is correct |
| 6 |
Correct |
3 ms |
688 KB |
Output is correct |
| 7 |
Correct |
4 ms |
688 KB |
Output is correct |
| 8 |
Correct |
3 ms |
688 KB |
Output is correct |
| 9 |
Correct |
2 ms |
704 KB |
Output is correct |
| 10 |
Correct |
3 ms |
704 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
3 ms |
496 KB |
Output is correct |
| 3 |
Correct |
3 ms |
688 KB |
Output is correct |
| 4 |
Correct |
3 ms |
688 KB |
Output is correct |
| 5 |
Correct |
3 ms |
688 KB |
Output is correct |
| 6 |
Correct |
3 ms |
688 KB |
Output is correct |
| 7 |
Correct |
4 ms |
688 KB |
Output is correct |
| 8 |
Correct |
3 ms |
688 KB |
Output is correct |
| 9 |
Correct |
2 ms |
704 KB |
Output is correct |
| 10 |
Correct |
3 ms |
704 KB |
Output is correct |
| 11 |
Correct |
280 ms |
15224 KB |
Output is correct |
| 12 |
Correct |
277 ms |
17428 KB |
Output is correct |
| 13 |
Correct |
316 ms |
17428 KB |
Output is correct |
| 14 |
Correct |
299 ms |
17428 KB |
Output is correct |
| 15 |
Correct |
260 ms |
18336 KB |
Output is correct |
| 16 |
Correct |
332 ms |
18336 KB |
Output is correct |
| 17 |
Correct |
388 ms |
19600 KB |
Output is correct |
| 18 |
Correct |
210 ms |
21176 KB |
Output is correct |
| 19 |
Correct |
262 ms |
21176 KB |
Output is correct |
| 20 |
Correct |
283 ms |
21176 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
3 ms |
496 KB |
Output is correct |
| 3 |
Correct |
3 ms |
688 KB |
Output is correct |
| 4 |
Correct |
3 ms |
688 KB |
Output is correct |
| 5 |
Correct |
3 ms |
688 KB |
Output is correct |
| 6 |
Correct |
3 ms |
688 KB |
Output is correct |
| 7 |
Correct |
4 ms |
688 KB |
Output is correct |
| 8 |
Correct |
3 ms |
688 KB |
Output is correct |
| 9 |
Correct |
2 ms |
704 KB |
Output is correct |
| 10 |
Correct |
3 ms |
704 KB |
Output is correct |
| 11 |
Correct |
280 ms |
15224 KB |
Output is correct |
| 12 |
Correct |
277 ms |
17428 KB |
Output is correct |
| 13 |
Correct |
316 ms |
17428 KB |
Output is correct |
| 14 |
Correct |
299 ms |
17428 KB |
Output is correct |
| 15 |
Correct |
260 ms |
18336 KB |
Output is correct |
| 16 |
Correct |
332 ms |
18336 KB |
Output is correct |
| 17 |
Correct |
388 ms |
19600 KB |
Output is correct |
| 18 |
Correct |
210 ms |
21176 KB |
Output is correct |
| 19 |
Correct |
262 ms |
21176 KB |
Output is correct |
| 20 |
Correct |
283 ms |
21176 KB |
Output is correct |
| 21 |
Correct |
299 ms |
21176 KB |
Output is correct |
| 22 |
Correct |
295 ms |
21176 KB |
Output is correct |
| 23 |
Correct |
362 ms |
21176 KB |
Output is correct |
| 24 |
Correct |
356 ms |
21176 KB |
Output is correct |
| 25 |
Correct |
310 ms |
21176 KB |
Output is correct |
| 26 |
Correct |
391 ms |
21176 KB |
Output is correct |
| 27 |
Correct |
373 ms |
21176 KB |
Output is correct |
| 28 |
Correct |
212 ms |
35880 KB |
Output is correct |
| 29 |
Correct |
298 ms |
45752 KB |
Output is correct |
| 30 |
Correct |
292 ms |
61544 KB |
Output is correct |
| 31 |
Runtime error |
342 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. |
| 32 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
3 ms |
496 KB |
Output is correct |
| 3 |
Correct |
3 ms |
688 KB |
Output is correct |
| 4 |
Correct |
3 ms |
688 KB |
Output is correct |
| 5 |
Correct |
3 ms |
688 KB |
Output is correct |
| 6 |
Correct |
3 ms |
688 KB |
Output is correct |
| 7 |
Correct |
4 ms |
688 KB |
Output is correct |
| 8 |
Correct |
3 ms |
688 KB |
Output is correct |
| 9 |
Correct |
2 ms |
704 KB |
Output is correct |
| 10 |
Correct |
3 ms |
704 KB |
Output is correct |
| 11 |
Runtime error |
121 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 |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
3 ms |
496 KB |
Output is correct |
| 3 |
Correct |
3 ms |
688 KB |
Output is correct |
| 4 |
Correct |
3 ms |
688 KB |
Output is correct |
| 5 |
Correct |
3 ms |
688 KB |
Output is correct |
| 6 |
Correct |
3 ms |
688 KB |
Output is correct |
| 7 |
Correct |
4 ms |
688 KB |
Output is correct |
| 8 |
Correct |
3 ms |
688 KB |
Output is correct |
| 9 |
Correct |
2 ms |
704 KB |
Output is correct |
| 10 |
Correct |
3 ms |
704 KB |
Output is correct |
| 11 |
Correct |
280 ms |
15224 KB |
Output is correct |
| 12 |
Correct |
277 ms |
17428 KB |
Output is correct |
| 13 |
Correct |
316 ms |
17428 KB |
Output is correct |
| 14 |
Correct |
299 ms |
17428 KB |
Output is correct |
| 15 |
Correct |
260 ms |
18336 KB |
Output is correct |
| 16 |
Correct |
332 ms |
18336 KB |
Output is correct |
| 17 |
Correct |
388 ms |
19600 KB |
Output is correct |
| 18 |
Correct |
210 ms |
21176 KB |
Output is correct |
| 19 |
Correct |
262 ms |
21176 KB |
Output is correct |
| 20 |
Correct |
283 ms |
21176 KB |
Output is correct |
| 21 |
Correct |
299 ms |
21176 KB |
Output is correct |
| 22 |
Correct |
295 ms |
21176 KB |
Output is correct |
| 23 |
Correct |
362 ms |
21176 KB |
Output is correct |
| 24 |
Correct |
356 ms |
21176 KB |
Output is correct |
| 25 |
Correct |
310 ms |
21176 KB |
Output is correct |
| 26 |
Correct |
391 ms |
21176 KB |
Output is correct |
| 27 |
Correct |
373 ms |
21176 KB |
Output is correct |
| 28 |
Correct |
212 ms |
35880 KB |
Output is correct |
| 29 |
Correct |
298 ms |
45752 KB |
Output is correct |
| 30 |
Correct |
292 ms |
61544 KB |
Output is correct |
| 31 |
Runtime error |
342 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. |
| 32 |
Halted |
0 ms |
0 KB |
- |
