oj.uz

Submission #500549

# Submission time Handle Problem Language Result Execution time Memory
500549 2021-12-31T10:33:27 Z codr0 Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 1715 ms 65536 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3,no-stack-protector,unroll-loops")
#pragma GCC target("avx2,fma")
#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define FORR(i,a,b) for(int i=a;i>=b;i--)
#define S second
#define F first
#define pb push_back
#define SZ(x) (int)x.size()
#define all(x) x.begin(),x.end()
#define err(x) cout<<#x<<": "<<x<<'\n';
 
using namespace std;
const int Q=1e6+4;
const int N=1050000;
int ans[Q];
int A[N];
char qu[Q][21];
int l,q;
int n;
int pw[21];
int Lg[N];
int F[N];

	void solve(){
		FOR(i,0,n-1) F[i]=A[i];
		FOR(i,0,l-1) FOR(msk,0,n-1)
		if(msk&pw[i])	F[msk]+=F[msk^pw[i]];
		int dp0[N];
		FOR(i,0,n-1) dp0[i]=F[i^(n-1)];
		FOR(i,0,q-1) if(ans[i]==-1){
			int tq(0),t[2]={};
			FOR(j,0,l-1) if(qu[i][j]=='?') tq++; else t[qu[i][j]-'0']++;
			if(tq<=7){
				ans[i]=0;
				vector<int> qq;
				int K=0;
				FOR(j,0,l-1) if(qu[i][j]=='?') qq.pb(j); else if(qu[i][j]=='1') K+=pw[j];
				FOR(j,0,pw[tq]-1){
					int J=j;
					int k=K;
					while(J){
						k+=pw[qq[Lg[(J&(-J))]]];
						J-=(J&(-J));
					}
					ans[i]+=A[k];
				}
			}else if(t[0]>=t[1]){
				ans[i]=0;
				vector<int> qq;
				int K=0;
				FOR(j,0,l-1) if(qu[i][j]=='0') K+=pw[j]; else if(qu[i][j]=='1') qq.pb(j);
				FOR(j,0,pw[t[1]]-1){
					int J=j;
					int k=K;
					int t=0;
					while(J){
						k+=pw[qq[Lg[(J&(-J))]]];
						t++;
						J-=(J&(-J));
					}
					if(t&1) ans[i]-=dp0[k];
					else ans[i]+=dp0[k];
				}
			}
		}
	}

	int32_t main() {
	/*ios_base::sync_with_stdio(0);*/ cin.tie(0);
	
	pw[0]=1; FOR(i,1,20) pw[i]=2*pw[i-1];
	FOR(i,0,20) Lg[pw[i]]=i;
	cin>>l>>q;
	n=pw[l];
	FOR(i,0,q) ans[i]=-1;
	//string s0; cin>>s0;
	getchar();
	FOR(i,0,n-1) A[i]=getchar()-'0'; getchar();
	FOR(i,0,q-1){
		//string x0; cin>>x0; qu.pb(x0);
		FOR(j,0,l-1) qu[i][j]=getchar();
		FOR(j,0,l-1){
			if(((l-1)-j)<=j) break;
			swap(qu[i][j],qu[i][((l-1)-j)]);
		}
		getchar();
	}
	solve();
	FOR(i,0,n-1){
		if((i^(n-1))<=i) break;
		swap(A[i],A[(i^(n-1))]);
	}
	FOR(i,0,q-1){
		FOR(j,0,l-1) if(qu[i][j]!='?') qu[i][j]=((1-(qu[i][j]-'0'))+'0');
	}
	solve();
	FOR(i,0,q-1) cout<<ans[i]<<'\n';

	return 0;
    }

Compilation message

snake_escaping.cpp: In function 'int32_t main()':
snake_escaping.cpp:4:20: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    4 | #define FOR(i,a,b) for(int i=a;i<=b;i++)
      |                    ^~~
snake_escaping.cpp:79:2: note: in expansion of macro 'FOR'
   79 |  FOR(i,0,n-1) A[i]=getchar()-'0'; getchar();
      |  ^~~
snake_escaping.cpp:79:35: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   79 |  FOR(i,0,n-1) A[i]=getchar()-'0'; getchar();
      |                                   ^~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4428 KB Output is correct
2 Correct 4 ms 4428 KB Output is correct
3 Correct 3 ms 4468 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4472 KB Output is correct
6 Correct 3 ms 4428 KB Output is correct
7 Correct 2 ms 4428 KB Output is correct
8 Correct 2 ms 4456 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4428 KB Output is correct
2 Correct 4 ms 4428 KB Output is correct
3 Correct 3 ms 4468 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4472 KB Output is correct
6 Correct 3 ms 4428 KB Output is correct
7 Correct 2 ms 4428 KB Output is correct
8 Correct 2 ms 4456 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct
11 Correct 590 ms 43664 KB Output is correct
12 Correct 679 ms 43372 KB Output is correct
13 Correct 394 ms 42604 KB Output is correct
14 Correct 405 ms 42784 KB Output is correct
15 Correct 770 ms 43652 KB Output is correct
16 Correct 480 ms 42784 KB Output is correct
17 Correct 494 ms 42820 KB Output is correct
18 Correct 191 ms 44708 KB Output is correct
19 Correct 243 ms 41736 KB Output is correct
20 Correct 650 ms 43312 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4428 KB Output is correct
2 Correct 4 ms 4428 KB Output is correct
3 Correct 3 ms 4468 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4472 KB Output is correct
6 Correct 3 ms 4428 KB Output is correct
7 Correct 2 ms 4428 KB Output is correct
8 Correct 2 ms 4456 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct
11 Correct 590 ms 43664 KB Output is correct
12 Correct 679 ms 43372 KB Output is correct
13 Correct 394 ms 42604 KB Output is correct
14 Correct 405 ms 42784 KB Output is correct
15 Correct 770 ms 43652 KB Output is correct
16 Correct 480 ms 42784 KB Output is correct
17 Correct 494 ms 42820 KB Output is correct
18 Correct 191 ms 44708 KB Output is correct
19 Correct 243 ms 41736 KB Output is correct
20 Correct 650 ms 43312 KB Output is correct
21 Correct 1410 ms 46780 KB Output is correct
22 Correct 744 ms 46796 KB Output is correct
23 Correct 554 ms 45828 KB Output is correct
24 Correct 504 ms 45700 KB Output is correct
25 Correct 440 ms 47676 KB Output is correct
26 Correct 656 ms 46168 KB Output is correct
27 Correct 647 ms 46064 KB Output is correct
28 Correct 214 ms 48692 KB Output is correct
29 Correct 279 ms 44688 KB Output is correct
30 Correct 757 ms 46788 KB Output is correct
31 Correct 839 ms 46648 KB Output is correct
32 Correct 648 ms 46684 KB Output is correct
33 Correct 414 ms 45500 KB Output is correct
34 Correct 500 ms 45628 KB Output is correct
35 Correct 647 ms 46104 KB Output is correct
36 Correct 233 ms 44688 KB Output is correct
37 Correct 805 ms 46648 KB Output is correct
38 Correct 294 ms 44800 KB Output is correct
39 Correct 522 ms 45900 KB Output is correct
40 Correct 498 ms 45636 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4428 KB Output is correct
2 Correct 4 ms 4428 KB Output is correct
3 Correct 3 ms 4468 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4472 KB Output is correct
6 Correct 3 ms 4428 KB Output is correct
7 Correct 2 ms 4428 KB Output is correct
8 Correct 2 ms 4456 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct
11 Correct 69 ms 16148 KB Output is correct
12 Correct 70 ms 16204 KB Output is correct
13 Correct 85 ms 16076 KB Output is correct
14 Correct 119 ms 16080 KB Output is correct
15 Correct 69 ms 16212 KB Output is correct
16 Correct 97 ms 16088 KB Output is correct
17 Correct 90 ms 16096 KB Output is correct
18 Correct 50 ms 16332 KB Output is correct
19 Correct 56 ms 15956 KB Output is correct
20 Correct 73 ms 16192 KB Output is correct
21 Correct 78 ms 16092 KB Output is correct
22 Correct 116 ms 16148 KB Output is correct
23 Correct 67 ms 16100 KB Output is correct
24 Correct 90 ms 16180 KB Output is correct
25 Correct 92 ms 16100 KB Output is correct
26 Correct 54 ms 15948 KB Output is correct
27 Correct 65 ms 16180 KB Output is correct
28 Correct 57 ms 15964 KB Output is correct
29 Correct 80 ms 16096 KB Output is correct
30 Correct 86 ms 16096 KB Output is correct
31 Correct 76 ms 16068 KB Output is correct
32 Correct 98 ms 16068 KB Output is correct
33 Correct 92 ms 16116 KB Output is correct
34 Correct 52 ms 15988 KB Output is correct
35 Correct 81 ms 16112 KB Output is correct
36 Correct 81 ms 16084 KB Output is correct
37 Correct 82 ms 16112 KB Output is correct
38 Correct 80 ms 16080 KB Output is correct
39 Correct 84 ms 16096 KB Output is correct
40 Correct 91 ms 16076 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4428 KB Output is correct
2 Correct 4 ms 4428 KB Output is correct
3 Correct 3 ms 4468 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4472 KB Output is correct
6 Correct 3 ms 4428 KB Output is correct
7 Correct 2 ms 4428 KB Output is correct
8 Correct 2 ms 4456 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct
11 Correct 590 ms 43664 KB Output is correct
12 Correct 679 ms 43372 KB Output is correct
13 Correct 394 ms 42604 KB Output is correct
14 Correct 405 ms 42784 KB Output is correct
15 Correct 770 ms 43652 KB Output is correct
16 Correct 480 ms 42784 KB Output is correct
17 Correct 494 ms 42820 KB Output is correct
18 Correct 191 ms 44708 KB Output is correct
19 Correct 243 ms 41736 KB Output is correct
20 Correct 650 ms 43312 KB Output is correct
21 Correct 1410 ms 46780 KB Output is correct
22 Correct 744 ms 46796 KB Output is correct
23 Correct 554 ms 45828 KB Output is correct
24 Correct 504 ms 45700 KB Output is correct
25 Correct 440 ms 47676 KB Output is correct
26 Correct 656 ms 46168 KB Output is correct
27 Correct 647 ms 46064 KB Output is correct
28 Correct 214 ms 48692 KB Output is correct
29 Correct 279 ms 44688 KB Output is correct
30 Correct 757 ms 46788 KB Output is correct
31 Correct 839 ms 46648 KB Output is correct
32 Correct 648 ms 46684 KB Output is correct
33 Correct 414 ms 45500 KB Output is correct
34 Correct 500 ms 45628 KB Output is correct
35 Correct 647 ms 46104 KB Output is correct
36 Correct 233 ms 44688 KB Output is correct
37 Correct 805 ms 46648 KB Output is correct
38 Correct 294 ms 44800 KB Output is correct
39 Correct 522 ms 45900 KB Output is correct
40 Correct 498 ms 45636 KB Output is correct
41 Correct 69 ms 16148 KB Output is correct
42 Correct 70 ms 16204 KB Output is correct
43 Correct 85 ms 16076 KB Output is correct
44 Correct 119 ms 16080 KB Output is correct
45 Correct 69 ms 16212 KB Output is correct
46 Correct 97 ms 16088 KB Output is correct
47 Correct 90 ms 16096 KB Output is correct
48 Correct 50 ms 16332 KB Output is correct
49 Correct 56 ms 15956 KB Output is correct
50 Correct 73 ms 16192 KB Output is correct
51 Correct 78 ms 16092 KB Output is correct
52 Correct 116 ms 16148 KB Output is correct
53 Correct 67 ms 16100 KB Output is correct
54 Correct 90 ms 16180 KB Output is correct
55 Correct 92 ms 16100 KB Output is correct
56 Correct 54 ms 15948 KB Output is correct
57 Correct 65 ms 16180 KB Output is correct
58 Correct 57 ms 15964 KB Output is correct
59 Correct 80 ms 16096 KB Output is correct
60 Correct 86 ms 16096 KB Output is correct
61 Correct 76 ms 16068 KB Output is correct
62 Correct 98 ms 16068 KB Output is correct
63 Correct 92 ms 16116 KB Output is correct
64 Correct 52 ms 15988 KB Output is correct
65 Correct 81 ms 16112 KB Output is correct
66 Correct 81 ms 16084 KB Output is correct
67 Correct 82 ms 16112 KB Output is correct
68 Correct 80 ms 16080 KB Output is correct
69 Correct 84 ms 16096 KB Output is correct
70 Correct 91 ms 16076 KB Output is correct
71 Correct 677 ms 63784 KB Output is correct
72 Correct 706 ms 63832 KB Output is correct
73 Correct 888 ms 62264 KB Output is correct
74 Correct 1621 ms 62680 KB Output is correct
75 Correct 685 ms 64616 KB Output is correct
76 Correct 1255 ms 62940 KB Output is correct
77 Correct 1118 ms 62780 KB Output is correct
78 Correct 309 ms 65536 KB Output is correct
79 Correct 438 ms 60612 KB Output is correct
80 Correct 777 ms 63912 KB Output is correct
81 Correct 817 ms 63668 KB Output is correct
82 Correct 1715 ms 62776 KB Output is correct
83 Correct 646 ms 61868 KB Output is correct
84 Correct 1078 ms 62696 KB Output is correct
85 Correct 1098 ms 62900 KB Output is correct
86 Correct 347 ms 60716 KB Output is correct
87 Correct 573 ms 63680 KB Output is correct
88 Correct 439 ms 60624 KB Output is correct
89 Correct 893 ms 62384 KB Output is correct
90 Correct 1075 ms 62756 KB Output is correct
91 Correct 651 ms 61948 KB Output is correct
92 Correct 1256 ms 62692 KB Output is correct
93 Correct 1137 ms 62600 KB Output is correct
94 Correct 343 ms 60588 KB Output is correct
95 Correct 917 ms 62800 KB Output is correct
96 Correct 921 ms 62612 KB Output is correct
97 Correct 927 ms 62668 KB Output is correct
98 Correct 912 ms 62528 KB Output is correct
99 Correct 901 ms 62552 KB Output is correct
100 Correct 913 ms 62492 KB Output is correct