oj.uz

Submission #964807

# Submission time Handle Problem Language Result Execution time Memory
964807 2024-04-17T15:17:09 Z Baytoro Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 2000 ms 38328 KB 
#include <bits/stdc++.h>
using namespace std;
#define ios ios::sync_with_stdio(false); cin.tie(NULL);
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
//#define mp make_pair
#define ll long long
//#define int ll
//#define double long double
//const ll INF=1e18,N=1e6+5;
int dp[(1<<20)+5][2];
void solve(){
	int n,q;cin>>n>>q;
	string s;cin>>s;
	vector<int> a((1<<n)+5);
	for(int i=0;i<(1<<n);i++) a[i]=(s[i]-'0');
	for(int i=0;i<(1<<n);i++) dp[i][0]=dp[i][1]=a[i];
	for(int i=0;i<n;i++){
		for(int mask=0;mask<(1<<n);mask++){
			if(mask&(1<<i)) dp[mask][0]+=dp[mask^(1<<i)][0];
			else dp[mask][1]+=dp[mask^(1<<i)][1];
		}
	}
	while(q--){
		string st;cin>>st;
		int z=0,o=0,u=0;
		for(int i=0;i<st.size();i++){
			if(st[i]=='?') u++;
			else if(st[i]=='0') z++;
			else o++;
		}
		int sum=0,ans=0;
		vector<int> tmp;
		if(u<=z && u<=o){
			reverse(all(st));
			for(int i=0;i<n;i++){
				if(st[i]=='1') sum+=(1<<i);
				if(st[i]=='?') tmp.pb(1<<i);
			}
			for(int i=0;i<(1<<tmp.size());i++){
				int tmpsum=sum;
				for(int j=0;j<tmp.size();j++){
					if(i&(1<<j)) tmpsum+=tmp[j];
				}
				ans+=a[tmpsum];
			}
		}
		else if(o<=z && o<=u){
			reverse(all(st));
			for(int i=0;i<n;i++){
				if(st[i]=='1' || st[i]=='?') sum+=(1<<i);
				if(st[i]=='1') tmp.pb(1<<i);
			}
			for(int i=0;i<(1<<tmp.size());i++){
				int tmpsum=sum,c=0;
				for(int j=0;j<tmp.size();j++){
					if(i&(1<<j)){
						tmpsum^=(tmp[j]);
						c++;
					}
				}
				if(c%2) c=-1;
				else c=1;
				ans+=c*dp[tmpsum][0];
			}
		}
		else{
			reverse(all(st));
			for(int i=0;i<n;i++){
				if(st[i]=='1') sum+=(1<<i);
				if(st[i]=='0') tmp.pb(1<<i);
			}
			for(int i=0;i<(1<<tmp.size());i++){
				int tmpsum=sum,c=0;
				for(int j=0;j<tmp.size();j++){
					if(!(i&(1<<j))){
						tmpsum^=(tmp[j]);
						c++;
					}
				}
				if(c%2) c=-1;
				else c=1;
				ans+=c*dp[tmpsum][1];
			}
		}
		cout<<ans<<endl;
	}
}
signed main(){
	ios;
	int t=1;//cin>>t;
	while(t--)
	solve();
}

Compilation message

snake_escaping.cpp: In function 'void solve()':
snake_escaping.cpp:30:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |   for(int i=0;i<st.size();i++){
      |               ~^~~~~~~~~~
snake_escaping.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |     for(int j=0;j<tmp.size();j++){
      |                 ~^~~~~~~~~~~
snake_escaping.cpp:59:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(int j=0;j<tmp.size();j++){
      |                 ~^~~~~~~~~~~
snake_escaping.cpp:78:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |     for(int j=0;j<tmp.size();j++){
      |                 ~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 344 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 344 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1391 ms 14420 KB Output is correct
12 Correct 1319 ms 14060 KB Output is correct
13 Correct 1449 ms 13116 KB Output is correct
14 Correct 1524 ms 13400 KB Output is correct
15 Correct 1470 ms 14632 KB Output is correct
16 Correct 1519 ms 13340 KB Output is correct
17 Correct 1501 ms 13088 KB Output is correct
18 Correct 1232 ms 15216 KB Output is correct
19 Correct 1353 ms 11996 KB Output is correct
20 Correct 1428 ms 13708 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 344 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1391 ms 14420 KB Output is correct
12 Correct 1319 ms 14060 KB Output is correct
13 Correct 1449 ms 13116 KB Output is correct
14 Correct 1524 ms 13400 KB Output is correct
15 Correct 1470 ms 14632 KB Output is correct
16 Correct 1519 ms 13340 KB Output is correct
17 Correct 1501 ms 13088 KB Output is correct
18 Correct 1232 ms 15216 KB Output is correct
19 Correct 1353 ms 11996 KB Output is correct
20 Correct 1428 ms 13708 KB Output is correct
21 Correct 1373 ms 17200 KB Output is correct
22 Correct 1407 ms 17060 KB Output is correct
23 Correct 1572 ms 16340 KB Output is correct
24 Correct 1639 ms 16016 KB Output is correct
25 Correct 1463 ms 17992 KB Output is correct
26 Correct 1656 ms 16704 KB Output is correct
27 Correct 1553 ms 16332 KB Output is correct
28 Correct 1291 ms 19812 KB Output is correct
29 Correct 1429 ms 15868 KB Output is correct
30 Correct 1379 ms 17060 KB Output is correct
31 Correct 1510 ms 17060 KB Output is correct
32 Correct 1649 ms 17084 KB Output is correct
33 Correct 1531 ms 15888 KB Output is correct
34 Correct 1615 ms 16084 KB Output is correct
35 Correct 1563 ms 16544 KB Output is correct
36 Correct 1305 ms 15080 KB Output is correct
37 Correct 1352 ms 17468 KB Output is correct
38 Correct 1400 ms 14904 KB Output is correct
39 Correct 1564 ms 16280 KB Output is correct
40 Correct 1598 ms 15916 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 344 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 102 ms 15976 KB Output is correct
12 Correct 98 ms 15972 KB Output is correct
13 Correct 115 ms 15996 KB Output is correct
14 Correct 153 ms 16368 KB Output is correct
15 Correct 116 ms 16092 KB Output is correct
16 Correct 147 ms 15964 KB Output is correct
17 Correct 154 ms 16112 KB Output is correct
18 Correct 98 ms 16212 KB Output is correct
19 Correct 95 ms 15864 KB Output is correct
20 Correct 115 ms 16116 KB Output is correct
21 Correct 121 ms 16116 KB Output is correct
22 Correct 151 ms 16160 KB Output is correct
23 Correct 100 ms 16116 KB Output is correct
24 Correct 137 ms 16116 KB Output is correct
25 Correct 125 ms 15948 KB Output is correct
26 Correct 101 ms 15892 KB Output is correct
27 Correct 115 ms 16216 KB Output is correct
28 Correct 106 ms 15860 KB Output is correct
29 Correct 119 ms 16096 KB Output is correct
30 Correct 129 ms 16012 KB Output is correct
31 Correct 106 ms 16108 KB Output is correct
32 Correct 149 ms 16304 KB Output is correct
33 Correct 144 ms 16564 KB Output is correct
34 Correct 97 ms 16064 KB Output is correct
35 Correct 114 ms 15980 KB Output is correct
36 Correct 124 ms 15960 KB Output is correct
37 Correct 152 ms 16112 KB Output is correct
38 Correct 131 ms 15916 KB Output is correct
39 Correct 128 ms 16008 KB Output is correct
40 Correct 148 ms 15948 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 344 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1391 ms 14420 KB Output is correct
12 Correct 1319 ms 14060 KB Output is correct
13 Correct 1449 ms 13116 KB Output is correct
14 Correct 1524 ms 13400 KB Output is correct
15 Correct 1470 ms 14632 KB Output is correct
16 Correct 1519 ms 13340 KB Output is correct
17 Correct 1501 ms 13088 KB Output is correct
18 Correct 1232 ms 15216 KB Output is correct
19 Correct 1353 ms 11996 KB Output is correct
20 Correct 1428 ms 13708 KB Output is correct
21 Correct 1373 ms 17200 KB Output is correct
22 Correct 1407 ms 17060 KB Output is correct
23 Correct 1572 ms 16340 KB Output is correct
24 Correct 1639 ms 16016 KB Output is correct
25 Correct 1463 ms 17992 KB Output is correct
26 Correct 1656 ms 16704 KB Output is correct
27 Correct 1553 ms 16332 KB Output is correct
28 Correct 1291 ms 19812 KB Output is correct
29 Correct 1429 ms 15868 KB Output is correct
30 Correct 1379 ms 17060 KB Output is correct
31 Correct 1510 ms 17060 KB Output is correct
32 Correct 1649 ms 17084 KB Output is correct
33 Correct 1531 ms 15888 KB Output is correct
34 Correct 1615 ms 16084 KB Output is correct
35 Correct 1563 ms 16544 KB Output is correct
36 Correct 1305 ms 15080 KB Output is correct
37 Correct 1352 ms 17468 KB Output is correct
38 Correct 1400 ms 14904 KB Output is correct
39 Correct 1564 ms 16280 KB Output is correct
40 Correct 1598 ms 15916 KB Output is correct
41 Correct 102 ms 15976 KB Output is correct
42 Correct 98 ms 15972 KB Output is correct
43 Correct 115 ms 15996 KB Output is correct
44 Correct 153 ms 16368 KB Output is correct
45 Correct 116 ms 16092 KB Output is correct
46 Correct 147 ms 15964 KB Output is correct
47 Correct 154 ms 16112 KB Output is correct
48 Correct 98 ms 16212 KB Output is correct
49 Correct 95 ms 15864 KB Output is correct
50 Correct 115 ms 16116 KB Output is correct
51 Correct 121 ms 16116 KB Output is correct
52 Correct 151 ms 16160 KB Output is correct
53 Correct 100 ms 16116 KB Output is correct
54 Correct 137 ms 16116 KB Output is correct
55 Correct 125 ms 15948 KB Output is correct
56 Correct 101 ms 15892 KB Output is correct
57 Correct 115 ms 16216 KB Output is correct
58 Correct 106 ms 15860 KB Output is correct
59 Correct 119 ms 16096 KB Output is correct
60 Correct 129 ms 16012 KB Output is correct
61 Correct 106 ms 16108 KB Output is correct
62 Correct 149 ms 16304 KB Output is correct
63 Correct 144 ms 16564 KB Output is correct
64 Correct 97 ms 16064 KB Output is correct
65 Correct 114 ms 15980 KB Output is correct
66 Correct 124 ms 15960 KB Output is correct
67 Correct 152 ms 16112 KB Output is correct
68 Correct 131 ms 15916 KB Output is correct
69 Correct 128 ms 16008 KB Output is correct
70 Correct 148 ms 15948 KB Output is correct
71 Correct 1607 ms 38328 KB Output is correct
72 Correct 1646 ms 38292 KB Output is correct
73 Correct 1800 ms 36932 KB Output is correct
74 Execution timed out 2071 ms 35684 KB Time limit exceeded
75 Halted 0 ms 0 KB -