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답안 #500551

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
500551 2021-12-31T10:42:21 Z codr0 Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 1499 ms 52260 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,O3")
#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:3:20: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    3 | #define FOR(i,a,b) for(int i=a;i<=b;i++)
      |                    ^~~
snake_escaping.cpp:78:2: note: in expansion of macro 'FOR'
   78 |  FOR(i,0,n-1) A[i]=getchar()-'0'; getchar();
      |  ^~~
snake_escaping.cpp:78:35: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   78 |  FOR(i,0,n-1) A[i]=getchar()-'0'; getchar();
      |                                   ^~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4428 KB Output is correct
2 Correct 2 ms 4464 KB Output is correct
3 Correct 2 ms 4428 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4428 KB Output is correct
6 Correct 2 ms 4428 KB Output is correct
7 Correct 3 ms 4468 KB Output is correct
8 Correct 2 ms 4468 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

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4428 KB Output is correct
2 Correct 2 ms 4464 KB Output is correct
3 Correct 2 ms 4428 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4428 KB Output is correct
6 Correct 2 ms 4428 KB Output is correct
7 Correct 3 ms 4468 KB Output is correct
8 Correct 2 ms 4468 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct
11 Correct 511 ms 33028 KB Output is correct
12 Correct 592 ms 32628 KB Output is correct
13 Correct 391 ms 31860 KB Output is correct
14 Correct 411 ms 32000 KB Output is correct
15 Correct 705 ms 39484 KB Output is correct
16 Correct 527 ms 41728 KB Output is correct
17 Correct 469 ms 40696 KB Output is correct
18 Correct 187 ms 44304 KB Output is correct
19 Correct 247 ms 41664 KB Output is correct
20 Correct 607 ms 43344 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4428 KB Output is correct
2 Correct 2 ms 4464 KB Output is correct
3 Correct 2 ms 4428 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4428 KB Output is correct
6 Correct 2 ms 4428 KB Output is correct
7 Correct 3 ms 4468 KB Output is correct
8 Correct 2 ms 4468 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct
11 Correct 511 ms 33028 KB Output is correct
12 Correct 592 ms 32628 KB Output is correct
13 Correct 391 ms 31860 KB Output is correct
14 Correct 411 ms 32000 KB Output is correct
15 Correct 705 ms 39484 KB Output is correct
16 Correct 527 ms 41728 KB Output is correct
17 Correct 469 ms 40696 KB Output is correct
18 Correct 187 ms 44304 KB Output is correct
19 Correct 247 ms 41664 KB Output is correct
20 Correct 607 ms 43344 KB Output is correct
21 Correct 1144 ms 44460 KB Output is correct
22 Correct 680 ms 44740 KB Output is correct
23 Correct 525 ms 45860 KB Output is correct
24 Correct 528 ms 45596 KB Output is correct
25 Correct 473 ms 47648 KB Output is correct
26 Correct 672 ms 46076 KB Output is correct
27 Correct 626 ms 46008 KB Output is correct
28 Correct 215 ms 48616 KB Output is correct
29 Correct 310 ms 44648 KB Output is correct
30 Correct 687 ms 46740 KB Output is correct
31 Correct 789 ms 46712 KB Output is correct
32 Correct 666 ms 46620 KB Output is correct
33 Correct 417 ms 45508 KB Output is correct
34 Correct 503 ms 45600 KB Output is correct
35 Correct 621 ms 46056 KB Output is correct
36 Correct 240 ms 44660 KB Output is correct
37 Correct 743 ms 46660 KB Output is correct
38 Correct 315 ms 44592 KB Output is correct
39 Correct 511 ms 45828 KB Output is correct
40 Correct 503 ms 45600 KB Output is correct

Subtask #4
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4428 KB Output is correct
2 Correct 2 ms 4464 KB Output is correct
3 Correct 2 ms 4428 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4428 KB Output is correct
6 Correct 2 ms 4428 KB Output is correct
7 Correct 3 ms 4468 KB Output is correct
8 Correct 2 ms 4468 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct
11 Correct 80 ms 16148 KB Output is correct
12 Correct 80 ms 16188 KB Output is correct
13 Correct 95 ms 16068 KB Output is correct
14 Correct 117 ms 16144 KB Output is correct
15 Correct 79 ms 16140 KB Output is correct
16 Correct 116 ms 16068 KB Output is correct
17 Correct 100 ms 16080 KB Output is correct
18 Correct 63 ms 16324 KB Output is correct
19 Correct 66 ms 15960 KB Output is correct
20 Correct 87 ms 16220 KB Output is correct
21 Correct 89 ms 16200 KB Output is correct
22 Correct 114 ms 16076 KB Output is correct
23 Correct 77 ms 16084 KB Output is correct
24 Correct 95 ms 16148 KB Output is correct
25 Correct 100 ms 16144 KB Output is correct
26 Correct 62 ms 15940 KB Output is correct
27 Correct 72 ms 16112 KB Output is correct
28 Correct 79 ms 15944 KB Output is correct
29 Correct 89 ms 16064 KB Output is correct
30 Correct 95 ms 16140 KB Output is correct
31 Correct 76 ms 16012 KB Output is correct
32 Correct 122 ms 16068 KB Output is correct
33 Correct 99 ms 16136 KB Output is correct
34 Correct 61 ms 15984 KB Output is correct
35 Correct 90 ms 16048 KB Output is correct
36 Correct 92 ms 16068 KB Output is correct
37 Correct 89 ms 16136 KB Output is correct
38 Correct 89 ms 16076 KB Output is correct
39 Correct 89 ms 16084 KB Output is correct
40 Correct 95 ms 16068 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4428 KB Output is correct
2 Correct 2 ms 4464 KB Output is correct
3 Correct 2 ms 4428 KB Output is correct
4 Correct 2 ms 4428 KB Output is correct
5 Correct 3 ms 4428 KB Output is correct
6 Correct 2 ms 4428 KB Output is correct
7 Correct 3 ms 4468 KB Output is correct
8 Correct 2 ms 4468 KB Output is correct
9 Correct 2 ms 4428 KB Output is correct
10 Correct 3 ms 4428 KB Output is correct
11 Correct 511 ms 33028 KB Output is correct
12 Correct 592 ms 32628 KB Output is correct
13 Correct 391 ms 31860 KB Output is correct
14 Correct 411 ms 32000 KB Output is correct
15 Correct 705 ms 39484 KB Output is correct
16 Correct 527 ms 41728 KB Output is correct
17 Correct 469 ms 40696 KB Output is correct
18 Correct 187 ms 44304 KB Output is correct
19 Correct 247 ms 41664 KB Output is correct
20 Correct 607 ms 43344 KB Output is correct
21 Correct 1144 ms 44460 KB Output is correct
22 Correct 680 ms 44740 KB Output is correct
23 Correct 525 ms 45860 KB Output is correct
24 Correct 528 ms 45596 KB Output is correct
25 Correct 473 ms 47648 KB Output is correct
26 Correct 672 ms 46076 KB Output is correct
27 Correct 626 ms 46008 KB Output is correct
28 Correct 215 ms 48616 KB Output is correct
29 Correct 310 ms 44648 KB Output is correct
30 Correct 687 ms 46740 KB Output is correct
31 Correct 789 ms 46712 KB Output is correct
32 Correct 666 ms 46620 KB Output is correct
33 Correct 417 ms 45508 KB Output is correct
34 Correct 503 ms 45600 KB Output is correct
35 Correct 621 ms 46056 KB Output is correct
36 Correct 240 ms 44660 KB Output is correct
37 Correct 743 ms 46660 KB Output is correct
38 Correct 315 ms 44592 KB Output is correct
39 Correct 511 ms 45828 KB Output is correct
40 Correct 503 ms 45600 KB Output is correct
41 Correct 80 ms 16148 KB Output is correct
42 Correct 80 ms 16188 KB Output is correct
43 Correct 95 ms 16068 KB Output is correct
44 Correct 117 ms 16144 KB Output is correct
45 Correct 79 ms 16140 KB Output is correct
46 Correct 116 ms 16068 KB Output is correct
47 Correct 100 ms 16080 KB Output is correct
48 Correct 63 ms 16324 KB Output is correct
49 Correct 66 ms 15960 KB Output is correct
50 Correct 87 ms 16220 KB Output is correct
51 Correct 89 ms 16200 KB Output is correct
52 Correct 114 ms 16076 KB Output is correct
53 Correct 77 ms 16084 KB Output is correct
54 Correct 95 ms 16148 KB Output is correct
55 Correct 100 ms 16144 KB Output is correct
56 Correct 62 ms 15940 KB Output is correct
57 Correct 72 ms 16112 KB Output is correct
58 Correct 79 ms 15944 KB Output is correct
59 Correct 89 ms 16064 KB Output is correct
60 Correct 95 ms 16140 KB Output is correct
61 Correct 76 ms 16012 KB Output is correct
62 Correct 122 ms 16068 KB Output is correct
63 Correct 99 ms 16136 KB Output is correct
64 Correct 61 ms 15984 KB Output is correct
65 Correct 90 ms 16048 KB Output is correct
66 Correct 92 ms 16068 KB Output is correct
67 Correct 89 ms 16136 KB Output is correct
68 Correct 89 ms 16076 KB Output is correct
69 Correct 89 ms 16084 KB Output is correct
70 Correct 95 ms 16068 KB Output is correct
71 Correct 684 ms 45632 KB Output is correct
72 Correct 666 ms 45704 KB Output is correct
73 Correct 856 ms 44124 KB Output is correct
74 Correct 1417 ms 44596 KB Output is correct
75 Correct 679 ms 46580 KB Output is correct
76 Correct 1220 ms 44756 KB Output is correct
77 Correct 1099 ms 44732 KB Output is correct
78 Correct 322 ms 49620 KB Output is correct
79 Correct 431 ms 42508 KB Output is correct
80 Correct 757 ms 45636 KB Output is correct
81 Correct 856 ms 45452 KB Output is correct
82 Correct 1499 ms 44456 KB Output is correct
83 Correct 644 ms 43624 KB Output is correct
84 Correct 1020 ms 44400 KB Output is correct
85 Correct 1097 ms 44636 KB Output is correct
86 Correct 357 ms 42308 KB Output is correct
87 Correct 583 ms 45384 KB Output is correct
88 Correct 454 ms 42276 KB Output is correct
89 Correct 878 ms 43976 KB Output is correct
90 Correct 1044 ms 44348 KB Output is correct
91 Correct 648 ms 43456 KB Output is correct
92 Correct 1210 ms 44472 KB Output is correct
93 Correct 1122 ms 44268 KB Output is correct
94 Correct 350 ms 41604 KB Output is correct
95 Correct 875 ms 52260 KB Output is correct
96 Correct 882 ms 43376 KB Output is correct
97 Correct 868 ms 43456 KB Output is correct
98 Correct 868 ms 43112 KB Output is correct
99 Correct 882 ms 42712 KB Output is correct
100 Correct 900 ms 42456 KB Output is correct