oj.uz

Submission #705396

# Submission time Handle Problem Language Result Execution time Memory
705396 2023-03-04T09:57:28 Z 089487 Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 794 ms 43392 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,popcnt,sse4,abm")
#include<bits/stdc++.h>
#define quick ios::sync_with_stdio(0);cin.tie(0);
#define rep(x,a,b) for(int x=a;x<=b;x++)
#define repd(x,a,b) for(int x=a;x>=b;x--)
#define lowbit(x) (x&-x)
#define sz(x) (int)(x.size())
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define mp make_pair
#define eb emplace_back
using namespace std;
typedef complex<int> P;
#define X real()
#define Y imag()
typedef pair<int,int> pii;
void debug(){
    cout<<"\n";
}
template <class T,class ... U >
void debug(T a, U ... b){
    cout<<a<<" ",debug(b...);
}
const int M=20;
const int N=(1<<M)+7;
const int INF=1e18;
int dp1[N];
int dp2[N];
int a[N];
int cnt0[N];
int cnt1[N];
int cnt2[N];
int ans=0;
string s;
void dfs(int x,int now,int n){
	if(x>=n){
		ans+=a[now];
		return ;
	}
	dfs(x+1,now|(1<<cnt0[x]),n);
	dfs(x+1,now,n);
}
void dfs2(int x,int flg,int now,int n){
	if(x>=n) {
		ans+=flg*dp1[now];
		return ;
	}
	dfs2(x+1,flg,now|(1<<cnt1[x]),n);
	dfs2(x+1,-flg,now,n);
}
void dfs3(int x,int flg,int now,int n){
	if(x>=n){
		ans+=flg*dp2[now];
		return ;
	}
	dfs3(x+1,flg,now,n);
	dfs3(x+1,-flg,now|(1<<cnt2[x]),n);
}
signed main(){
	quick
	int n,q;
	cin>>n>>q;
	string S;
	cin>>S;
	rep(i,0,(1<<n)-1){
		dp1[i]=dp2[i]=a[i]=S[i]-'0';
	}
	rep(i,0,n-1){
		rep(mask,0,(1<<n)-1){
			if(mask&(1<<i)){
				dp1[mask]+=dp1[mask^(1<<i)];
			}
			else dp2[mask]+=dp2[mask^(1<<i)];
		}
	}
	while(q--){
		cin>>s;
		reverse(all(s));
		int a,b,c;
		int now1,now2,now3;
		a=b=c=now1=now2=now3=0;
		rep(i,0,n-1){
			if(s[i]=='?') cnt0[a++]=i,now2|=(1<<i);
			else if(s[i]=='1') cnt1[b++]=i,now1|=(1<<i),now3|=(1<<i);
			else cnt2[c++]=i;
		}
		ans=0;
		if(a<=min(b,c)){
			dfs(0,now1,a);
		}
		else if(b<=min(a,c)){
			dfs2(0,1,now2,b);
		}
		else{
			dfs3(0,1,now3,c);
		}
		cout<<ans<<"\n";
	}

	return 0;
}

Compilation message

snake_escaping.cpp:28:15: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   28 | const int INF=1e18;
      |               ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 209 ms 10620 KB Output is correct
12 Correct 220 ms 10284 KB Output is correct
13 Correct 249 ms 9616 KB Output is correct
14 Correct 249 ms 10068 KB Output is correct
15 Correct 237 ms 11192 KB Output is correct
16 Correct 250 ms 10312 KB Output is correct
17 Correct 267 ms 10340 KB Output is correct
18 Correct 181 ms 12248 KB Output is correct
19 Correct 200 ms 9148 KB Output is correct
20 Correct 237 ms 10820 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 209 ms 10620 KB Output is correct
12 Correct 220 ms 10284 KB Output is correct
13 Correct 249 ms 9616 KB Output is correct
14 Correct 249 ms 10068 KB Output is correct
15 Correct 237 ms 11192 KB Output is correct
16 Correct 250 ms 10312 KB Output is correct
17 Correct 267 ms 10340 KB Output is correct
18 Correct 181 ms 12248 KB Output is correct
19 Correct 200 ms 9148 KB Output is correct
20 Correct 237 ms 10820 KB Output is correct
21 Correct 218 ms 9656 KB Output is correct
22 Correct 219 ms 9664 KB Output is correct
23 Correct 264 ms 8800 KB Output is correct
24 Correct 265 ms 8492 KB Output is correct
25 Correct 243 ms 10524 KB Output is correct
26 Correct 275 ms 9128 KB Output is correct
27 Correct 287 ms 8732 KB Output is correct
28 Correct 175 ms 11148 KB Output is correct
29 Correct 205 ms 7008 KB Output is correct
30 Correct 235 ms 9136 KB Output is correct
31 Correct 258 ms 8908 KB Output is correct
32 Correct 295 ms 8720 KB Output is correct
33 Correct 220 ms 7548 KB Output is correct
34 Correct 292 ms 7788 KB Output is correct
35 Correct 275 ms 7724 KB Output is correct
36 Correct 166 ms 5928 KB Output is correct
37 Correct 217 ms 7968 KB Output is correct
38 Correct 216 ms 5480 KB Output is correct
39 Correct 261 ms 6688 KB Output is correct
40 Correct 256 ms 5892 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 39 ms 16088 KB Output is correct
12 Correct 43 ms 16084 KB Output is correct
13 Correct 53 ms 15952 KB Output is correct
14 Correct 46 ms 15948 KB Output is correct
15 Correct 39 ms 16080 KB Output is correct
16 Correct 58 ms 16068 KB Output is correct
17 Correct 55 ms 16248 KB Output is correct
18 Correct 35 ms 16236 KB Output is correct
19 Correct 40 ms 15828 KB Output is correct
20 Correct 38 ms 16088 KB Output is correct
21 Correct 44 ms 16072 KB Output is correct
22 Correct 49 ms 16052 KB Output is correct
23 Correct 51 ms 15980 KB Output is correct
24 Correct 60 ms 16036 KB Output is correct
25 Correct 53 ms 15964 KB Output is correct
26 Correct 31 ms 15852 KB Output is correct
27 Correct 36 ms 15984 KB Output is correct
28 Correct 45 ms 15832 KB Output is correct
29 Correct 45 ms 15912 KB Output is correct
30 Correct 50 ms 15980 KB Output is correct
31 Correct 40 ms 15944 KB Output is correct
32 Correct 55 ms 15980 KB Output is correct
33 Correct 53 ms 15944 KB Output is correct
34 Correct 33 ms 15828 KB Output is correct
35 Correct 48 ms 16036 KB Output is correct
36 Correct 47 ms 16020 KB Output is correct
37 Correct 48 ms 15956 KB Output is correct
38 Correct 58 ms 15956 KB Output is correct
39 Correct 64 ms 16012 KB Output is correct
40 Correct 51 ms 16012 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 209 ms 10620 KB Output is correct
12 Correct 220 ms 10284 KB Output is correct
13 Correct 249 ms 9616 KB Output is correct
14 Correct 249 ms 10068 KB Output is correct
15 Correct 237 ms 11192 KB Output is correct
16 Correct 250 ms 10312 KB Output is correct
17 Correct 267 ms 10340 KB Output is correct
18 Correct 181 ms 12248 KB Output is correct
19 Correct 200 ms 9148 KB Output is correct
20 Correct 237 ms 10820 KB Output is correct
21 Correct 218 ms 9656 KB Output is correct
22 Correct 219 ms 9664 KB Output is correct
23 Correct 264 ms 8800 KB Output is correct
24 Correct 265 ms 8492 KB Output is correct
25 Correct 243 ms 10524 KB Output is correct
26 Correct 275 ms 9128 KB Output is correct
27 Correct 287 ms 8732 KB Output is correct
28 Correct 175 ms 11148 KB Output is correct
29 Correct 205 ms 7008 KB Output is correct
30 Correct 235 ms 9136 KB Output is correct
31 Correct 258 ms 8908 KB Output is correct
32 Correct 295 ms 8720 KB Output is correct
33 Correct 220 ms 7548 KB Output is correct
34 Correct 292 ms 7788 KB Output is correct
35 Correct 275 ms 7724 KB Output is correct
36 Correct 166 ms 5928 KB Output is correct
37 Correct 217 ms 7968 KB Output is correct
38 Correct 216 ms 5480 KB Output is correct
39 Correct 261 ms 6688 KB Output is correct
40 Correct 256 ms 5892 KB Output is correct
41 Correct 39 ms 16088 KB Output is correct
42 Correct 43 ms 16084 KB Output is correct
43 Correct 53 ms 15952 KB Output is correct
44 Correct 46 ms 15948 KB Output is correct
45 Correct 39 ms 16080 KB Output is correct
46 Correct 58 ms 16068 KB Output is correct
47 Correct 55 ms 16248 KB Output is correct
48 Correct 35 ms 16236 KB Output is correct
49 Correct 40 ms 15828 KB Output is correct
50 Correct 38 ms 16088 KB Output is correct
51 Correct 44 ms 16072 KB Output is correct
52 Correct 49 ms 16052 KB Output is correct
53 Correct 51 ms 15980 KB Output is correct
54 Correct 60 ms 16036 KB Output is correct
55 Correct 53 ms 15964 KB Output is correct
56 Correct 31 ms 15852 KB Output is correct
57 Correct 36 ms 15984 KB Output is correct
58 Correct 45 ms 15832 KB Output is correct
59 Correct 45 ms 15912 KB Output is correct
60 Correct 50 ms 15980 KB Output is correct
61 Correct 40 ms 15944 KB Output is correct
62 Correct 55 ms 15980 KB Output is correct
63 Correct 53 ms 15944 KB Output is correct
64 Correct 33 ms 15828 KB Output is correct
65 Correct 48 ms 16036 KB Output is correct
66 Correct 47 ms 16020 KB Output is correct
67 Correct 48 ms 15956 KB Output is correct
68 Correct 58 ms 15956 KB Output is correct
69 Correct 64 ms 16012 KB Output is correct
70 Correct 51 ms 16012 KB Output is correct
71 Correct 335 ms 40352 KB Output is correct
72 Correct 340 ms 40544 KB Output is correct
73 Correct 442 ms 38980 KB Output is correct
74 Correct 589 ms 39288 KB Output is correct
75 Correct 372 ms 41208 KB Output is correct
76 Correct 794 ms 39588 KB Output is correct
77 Correct 661 ms 39552 KB Output is correct
78 Correct 217 ms 43392 KB Output is correct
79 Correct 321 ms 37312 KB Output is correct
80 Correct 361 ms 40372 KB Output is correct
81 Correct 487 ms 40248 KB Output is correct
82 Correct 545 ms 39208 KB Output is correct
83 Correct 380 ms 38600 KB Output is correct
84 Correct 635 ms 39232 KB Output is correct
85 Correct 720 ms 39500 KB Output is correct
86 Correct 254 ms 37292 KB Output is correct
87 Correct 325 ms 40116 KB Output is correct
88 Correct 334 ms 37352 KB Output is correct
89 Correct 482 ms 38904 KB Output is correct
90 Correct 649 ms 39348 KB Output is correct
91 Correct 349 ms 38152 KB Output is correct
92 Correct 789 ms 39544 KB Output is correct
93 Correct 640 ms 39464 KB Output is correct
94 Correct 205 ms 37216 KB Output is correct
95 Correct 548 ms 39420 KB Output is correct
96 Correct 558 ms 39408 KB Output is correct
97 Correct 563 ms 39384 KB Output is correct
98 Correct 552 ms 39380 KB Output is correct
99 Correct 575 ms 39452 KB Output is correct
100 Correct 557 ms 39380 KB Output is correct