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답안 #154127

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
154127 2019-09-18T13:05:05 Z ryansee Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 976 ms 43416 KB 
#include "bits/stdc++.h"
using namespace std;

#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define pb push_back
#define eb emplace_back
#define ins insert
#define ph push
#define f first
#define s second
#define cbr cerr << "hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ((ll)x.size())
#define all(x) (x).begin(), (x).end()
#define lbd(x, y) lower_bound(all(x), y)
#define ubd(x, y) upper_bound(all(x), y)
#define btinpct(x) __builtin_popcount((x))
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
inline long long rand(long long x, long long y) { return (rng() % (y+1-x)) + x; } //inclusivesss
string to_string(char c) {string s(1,c);return s;} template<typename T> inline T gcd(T a,T b){if(a>b)swap(a,b);if(a==0)return b;return gcd(b%a,a);}

#define ll long long int 
#define ld long double
#define FOR(ii, ss, ee) for(ll ii = (ss); ii <= (ll)(ee); ++ii)
#define DEC(ii, ss, ee) for(ll ii = (ss); ii >= (ll)(ee); --ii)
typedef pair <ll, ll> pi; typedef pair <ll, pi> spi; typedef pair <pi, pi> dpi;

#define LLINF ((long long) 1e18)//1234567890987654321
#define INF 1234567890ll
// #define cerr if(0)cout
#define MAXN (20)
int L, Q;
string S;
int sum0[1<<MAXN], sum1[1<<MAXN], num[1<<MAXN];
string gug(ll x, ll place) {
	-- place;
	assert(x <= (1<<(place+1))-1);
	string res="";
	for(ll i=place; i>=0; --i) if((1<<i)&x) res+='1'; else res+='0';
	return res;
}
int main()
{
	FAST
	cin>>L>>Q;
	cin>>S;
	FOR(i,0,(1<<L)-1) {
		sum0[(~i)&((1<<L)-1)] += S[i]-'0';
		sum1[i] += S[i]-'0'; 
		num[i]=btinpct(i);
	}
	FOR(j,0,L-1) {
		FOR(i,0,(1<<L)-1) {
			if( ((1<<j)&i) == 0 ) sum0[i] += sum0[i^(1<<j)], sum1[i] += sum1[i^(1<<j)];
		}
	}
	FOR(ii,0,Q-1) {
		string Q; cin>>Q;
		reverse(all(Q)); assert(Q.size()==L);
		int a=0, b=0, c=0, na=0, nb=0, nc=0;
		FOR(i,0,L-1) {
			if(Q[i] == '0') a += 1<<i, ++na;
			if(Q[i] == '1') b += 1<<i, ++nb;
			if(Q[i] == '?') c += 1<<i, ++nc;
		}
		int ans=0;
		if((na <= nb && na <= nc)) { // a
			ans += sum1[b]; // a will not clash bit with b, cos in Q[pos] only can be 1 character lol
			for(int j=a; j>0; j=(j-1)&a) { assert((j&b)==0);
				if(num[j] & 1) ans -= sum1[j|b];
				else ans += sum1[j|b];
			}
		} else if(nb <= na && nb <= nc) { // b
			ans += sum0[a];
			for(int j=b; j>0; j=(j-1)&b) {
				if(num[j] & 1) ans -= sum0[j|a];
				else ans += sum0[j|a];
			}
		} else { // c
			for(int i=c; i>0; i=(i-1)&c) ans += S[i|b]-'0';// (i&b) == 0
			ans += S[b]-'0';
		}
		cout<<ans<<'\n';
	}
}

Compilation message

In file included from /usr/include/c++/7/cassert:44:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:33,
                 from snake_escaping.cpp:1:
snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:59:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   reverse(all(Q)); assert(Q.size()==L);
                           ~~~~~~~~^~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 247 ms 15068 KB Output is correct
12 Correct 258 ms 14840 KB Output is correct
13 Correct 290 ms 14036 KB Output is correct
14 Correct 408 ms 14172 KB Output is correct
15 Correct 272 ms 15224 KB Output is correct
16 Correct 292 ms 14456 KB Output is correct
17 Correct 297 ms 14276 KB Output is correct
18 Correct 209 ms 16168 KB Output is correct
19 Correct 230 ms 13048 KB Output is correct
20 Correct 263 ms 14840 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 247 ms 15068 KB Output is correct
12 Correct 258 ms 14840 KB Output is correct
13 Correct 290 ms 14036 KB Output is correct
14 Correct 408 ms 14172 KB Output is correct
15 Correct 272 ms 15224 KB Output is correct
16 Correct 292 ms 14456 KB Output is correct
17 Correct 297 ms 14276 KB Output is correct
18 Correct 209 ms 16168 KB Output is correct
19 Correct 230 ms 13048 KB Output is correct
20 Correct 263 ms 14840 KB Output is correct
21 Correct 288 ms 18108 KB Output is correct
22 Correct 310 ms 18360 KB Output is correct
23 Correct 325 ms 17320 KB Output is correct
24 Correct 354 ms 17400 KB Output is correct
25 Correct 298 ms 19152 KB Output is correct
26 Correct 347 ms 17656 KB Output is correct
27 Correct 344 ms 17828 KB Output is correct
28 Correct 227 ms 20216 KB Output is correct
29 Correct 276 ms 16124 KB Output is correct
30 Correct 305 ms 18376 KB Output is correct
31 Correct 322 ms 18204 KB Output is correct
32 Correct 352 ms 18424 KB Output is correct
33 Correct 288 ms 17144 KB Output is correct
34 Correct 339 ms 17248 KB Output is correct
35 Correct 338 ms 17628 KB Output is correct
36 Correct 199 ms 16224 KB Output is correct
37 Correct 285 ms 18248 KB Output is correct
38 Correct 275 ms 16236 KB Output is correct
39 Correct 315 ms 17356 KB Output is correct
40 Correct 350 ms 17272 KB Output is correct

Subtask #4
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 75 ms 16144 KB Output is correct
12 Correct 76 ms 16152 KB Output is correct
13 Correct 82 ms 16024 KB Output is correct
14 Correct 94 ms 16024 KB Output is correct
15 Correct 76 ms 16152 KB Output is correct
16 Correct 93 ms 16024 KB Output is correct
17 Correct 93 ms 16156 KB Output is correct
18 Correct 69 ms 16280 KB Output is correct
19 Correct 74 ms 16024 KB Output is correct
20 Correct 76 ms 16148 KB Output is correct
21 Correct 84 ms 16280 KB Output is correct
22 Correct 93 ms 16148 KB Output is correct
23 Correct 76 ms 16024 KB Output is correct
24 Correct 96 ms 16124 KB Output is correct
25 Correct 93 ms 16068 KB Output is correct
26 Correct 66 ms 16020 KB Output is correct
27 Correct 75 ms 16152 KB Output is correct
28 Correct 74 ms 15972 KB Output is correct
29 Correct 82 ms 16144 KB Output is correct
30 Correct 86 ms 16024 KB Output is correct
31 Correct 82 ms 16168 KB Output is correct
32 Correct 96 ms 16024 KB Output is correct
33 Correct 94 ms 16152 KB Output is correct
34 Correct 68 ms 15892 KB Output is correct
35 Correct 87 ms 16092 KB Output is correct
36 Correct 88 ms 16152 KB Output is correct
37 Correct 97 ms 16152 KB Output is correct
38 Correct 84 ms 16152 KB Output is correct
39 Correct 84 ms 16152 KB Output is correct
40 Correct 84 ms 16072 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 247 ms 15068 KB Output is correct
12 Correct 258 ms 14840 KB Output is correct
13 Correct 290 ms 14036 KB Output is correct
14 Correct 408 ms 14172 KB Output is correct
15 Correct 272 ms 15224 KB Output is correct
16 Correct 292 ms 14456 KB Output is correct
17 Correct 297 ms 14276 KB Output is correct
18 Correct 209 ms 16168 KB Output is correct
19 Correct 230 ms 13048 KB Output is correct
20 Correct 263 ms 14840 KB Output is correct
21 Correct 288 ms 18108 KB Output is correct
22 Correct 310 ms 18360 KB Output is correct
23 Correct 325 ms 17320 KB Output is correct
24 Correct 354 ms 17400 KB Output is correct
25 Correct 298 ms 19152 KB Output is correct
26 Correct 347 ms 17656 KB Output is correct
27 Correct 344 ms 17828 KB Output is correct
28 Correct 227 ms 20216 KB Output is correct
29 Correct 276 ms 16124 KB Output is correct
30 Correct 305 ms 18376 KB Output is correct
31 Correct 322 ms 18204 KB Output is correct
32 Correct 352 ms 18424 KB Output is correct
33 Correct 288 ms 17144 KB Output is correct
34 Correct 339 ms 17248 KB Output is correct
35 Correct 338 ms 17628 KB Output is correct
36 Correct 199 ms 16224 KB Output is correct
37 Correct 285 ms 18248 KB Output is correct
38 Correct 275 ms 16236 KB Output is correct
39 Correct 315 ms 17356 KB Output is correct
40 Correct 350 ms 17272 KB Output is correct
41 Correct 75 ms 16144 KB Output is correct
42 Correct 76 ms 16152 KB Output is correct
43 Correct 82 ms 16024 KB Output is correct
44 Correct 94 ms 16024 KB Output is correct
45 Correct 76 ms 16152 KB Output is correct
46 Correct 93 ms 16024 KB Output is correct
47 Correct 93 ms 16156 KB Output is correct
48 Correct 69 ms 16280 KB Output is correct
49 Correct 74 ms 16024 KB Output is correct
50 Correct 76 ms 16148 KB Output is correct
51 Correct 84 ms 16280 KB Output is correct
52 Correct 93 ms 16148 KB Output is correct
53 Correct 76 ms 16024 KB Output is correct
54 Correct 96 ms 16124 KB Output is correct
55 Correct 93 ms 16068 KB Output is correct
56 Correct 66 ms 16020 KB Output is correct
57 Correct 75 ms 16152 KB Output is correct
58 Correct 74 ms 15972 KB Output is correct
59 Correct 82 ms 16144 KB Output is correct
60 Correct 86 ms 16024 KB Output is correct
61 Correct 82 ms 16168 KB Output is correct
62 Correct 96 ms 16024 KB Output is correct
63 Correct 94 ms 16152 KB Output is correct
64 Correct 68 ms 15892 KB Output is correct
65 Correct 87 ms 16092 KB Output is correct
66 Correct 88 ms 16152 KB Output is correct
67 Correct 97 ms 16152 KB Output is correct
68 Correct 84 ms 16152 KB Output is correct
69 Correct 84 ms 16152 KB Output is correct
70 Correct 84 ms 16072 KB Output is correct
71 Correct 521 ms 40476 KB Output is correct
72 Correct 540 ms 40536 KB Output is correct
73 Correct 679 ms 39128 KB Output is correct
74 Correct 817 ms 39400 KB Output is correct
75 Correct 527 ms 41416 KB Output is correct
76 Correct 925 ms 39772 KB Output is correct
77 Correct 822 ms 39760 KB Output is correct
78 Correct 375 ms 43416 KB Output is correct
79 Correct 459 ms 37464 KB Output is correct
80 Correct 573 ms 40704 KB Output is correct
81 Correct 757 ms 40392 KB Output is correct
82 Correct 880 ms 39440 KB Output is correct
83 Correct 478 ms 38552 KB Output is correct
84 Correct 847 ms 39320 KB Output is correct
85 Correct 831 ms 39624 KB Output is correct
86 Correct 327 ms 37400 KB Output is correct
87 Correct 547 ms 40472 KB Output is correct
88 Correct 526 ms 37400 KB Output is correct
89 Correct 716 ms 39112 KB Output is correct
90 Correct 628 ms 39316 KB Output is correct
91 Correct 543 ms 38560 KB Output is correct
92 Correct 976 ms 39760 KB Output is correct
93 Correct 840 ms 39632 KB Output is correct
94 Correct 334 ms 37400 KB Output is correct
95 Correct 749 ms 39448 KB Output is correct
96 Correct 795 ms 39620 KB Output is correct
97 Correct 897 ms 39576 KB Output is correct
98 Correct 821 ms 39416 KB Output is correct
99 Correct 703 ms 39528 KB Output is correct
100 Correct 726 ms 39580 KB Output is correct