oj.uz

답안 #315433

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
315433 2020-10-22T21:59:56 Z aZvezda Snake Escaping (JOI18_snake_escaping) C++14
75 / 100
 1665 ms 65540 KB 
#include <bits/stdc++.h>
using namespace std;
//#pragma GCC optimize ("O3")
//#pragma GCC target ("sse4")
#define endl "\n"
typedef long long ll;
template<class T, class T2> inline ostream &operator <<(ostream &out, const pair<T, T2> &x) { out << x.first << " " << x.second; return out;}
template<class T, class T2> inline istream &operator >>(istream &in, pair<T, T2> &x) { in >> x.first >> x.second; return in;}
template<class T, class T2> inline bool chkmax(T &x, const T2 &y) { return x < y ? x = y, 1 : 0; }
template<class T, class T2> inline bool chkmin(T &x, const T2 &y) { return x > y ? x = y, 1 : 0; }
const ll mod = 1e9 + 7;
#define out(x) "{" << (#x) << ": " << x << "} "
 
const ll MAX_N = (1 << 20) + 10;
const ll MAX_RIGHT = 2000000; ll MAX_LEFT = 7;
int pow3[50];
int dp[MAX_RIGHT];
int price[MAX_N];
string queries[MAX_N];
int ans[MAX_N];
int n, q;
char first2[MAX_RIGHT];
int sum[MAX_RIGHT];
int rightPart[MAX_N];
 
void prec() {
	for(ll i = 0; i < q; i ++) {
		ll currMask = 0;
		for(ll j = n - 1; j >= MAX_LEFT; j --) {
			currMask *= 3;
			currMask += (ll)(queries[i][j] - '0');
		}
		rightPart[i] = currMask;
	}
 
	ll triBits = n - MAX_LEFT;
	for(ll i = 0; i < pow3[triBits]; i ++) {
		bool flag = false;
		for(ll j = triBits - 1; j >= 0; j --) {
			if((i / pow3[j]) % 3 == 2) {
				first2[i] = j;
				flag = true;
				break;
			}
		}
		if(!flag) {
			ll currMask = 0;
			for(ll j = triBits - 1; j >= 0; j --) {
				currMask += ((i / pow3[j]) % 3) * (1 << (j + MAX_LEFT));
			}
			sum[i] = currMask;
			first2[i] = -1;
		}
	}
}
 
void getAns(ll mask) {
	vector<ll> indices;
	for(ll i = 0; i < q; i ++) {
		for(ll j = 0; j < MAX_LEFT; j ++) {
			if(mask & (1 << j)) {
				if(queries[i][j] == '0') {
					break;
				}
			} else {
				if(queries[i][j] == '1') {
					break;
				}				
			}
			if(j == MAX_LEFT - 1) {
				indices.push_back(i);
			}
		}
	}
	
	ll triBits = n - MAX_LEFT;
	for(ll i = 0; i < pow3[triBits]; i ++) {
		if(first2[i] != -1) {
			ll j = first2[i];		
			dp[i] = dp[i - pow3[j]] + dp[i - 2 * pow3[j]]; 
		} else {
			ll currMask = mask + sum[i];
			dp[i] = price[currMask];			
		}
	}
	
	for(auto it : indices) {
		ans[it] += dp[rightPart[it]];
	}
}
 
signed main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	pow3[0] = 1;
	for(ll i = 1; i < 50; i ++) {
		pow3[i] = pow3[i - 1] * 3ll;
	}
	cin >> n >> q;
	chkmin(MAX_LEFT, n);
	if(n < 20) {MAX_LEFT = 6;}
	string in;
	cin >> in;
	for(ll i = 0; i < (1 << n); i ++) {
		price[i] = in[i] - '0';
	}
	for(ll i = 0; i < q; i ++) {
		cin >> queries[i];
		reverse(queries[i].begin(), queries[i].end());
		for(auto &it : queries[i]) {
			if(it == '?') {
				it = '2';
			}
		}
	}
		
	prec();
	for(ll mask = 0; mask < (1 << MAX_LEFT); mask ++) {
		getAns(mask);
	}
	for(ll i = 0; i < q; i ++) {
		cout << ans[i] << endl;
	}
	return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 33280 KB Output is correct
2 Correct 23 ms 33280 KB Output is correct
3 Correct 24 ms 33280 KB Output is correct
4 Correct 24 ms 33280 KB Output is correct
5 Correct 23 ms 33280 KB Output is correct
6 Correct 23 ms 33280 KB Output is correct
7 Correct 24 ms 33280 KB Output is correct
8 Correct 24 ms 33280 KB Output is correct
9 Correct 23 ms 33152 KB Output is correct
10 Correct 23 ms 33280 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 33280 KB Output is correct
2 Correct 23 ms 33280 KB Output is correct
3 Correct 24 ms 33280 KB Output is correct
4 Correct 24 ms 33280 KB Output is correct
5 Correct 23 ms 33280 KB Output is correct
6 Correct 23 ms 33280 KB Output is correct
7 Correct 24 ms 33280 KB Output is correct
8 Correct 24 ms 33280 KB Output is correct
9 Correct 23 ms 33152 KB Output is correct
10 Correct 23 ms 33280 KB Output is correct
11 Correct 1197 ms 53524 KB Output is correct
12 Correct 1236 ms 52784 KB Output is correct
13 Correct 1180 ms 45916 KB Output is correct
14 Correct 1274 ms 44988 KB Output is correct
15 Correct 1382 ms 45228 KB Output is correct
16 Correct 1341 ms 45008 KB Output is correct
17 Correct 1335 ms 44572 KB Output is correct
18 Correct 1663 ms 57144 KB Output is correct
19 Correct 1085 ms 43424 KB Output is correct
20 Correct 1277 ms 53456 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 33280 KB Output is correct
2 Correct 23 ms 33280 KB Output is correct
3 Correct 24 ms 33280 KB Output is correct
4 Correct 24 ms 33280 KB Output is correct
5 Correct 23 ms 33280 KB Output is correct
6 Correct 23 ms 33280 KB Output is correct
7 Correct 24 ms 33280 KB Output is correct
8 Correct 24 ms 33280 KB Output is correct
9 Correct 23 ms 33152 KB Output is correct
10 Correct 23 ms 33280 KB Output is correct
11 Correct 1197 ms 53524 KB Output is correct
12 Correct 1236 ms 52784 KB Output is correct
13 Correct 1180 ms 45916 KB Output is correct
14 Correct 1274 ms 44988 KB Output is correct
15 Correct 1382 ms 45228 KB Output is correct
16 Correct 1341 ms 45008 KB Output is correct
17 Correct 1335 ms 44572 KB Output is correct
18 Correct 1663 ms 57144 KB Output is correct
19 Correct 1085 ms 43424 KB Output is correct
20 Correct 1277 ms 53456 KB Output is correct
21 Correct 1316 ms 57212 KB Output is correct
22 Correct 1268 ms 53320 KB Output is correct
23 Correct 1242 ms 46292 KB Output is correct
24 Correct 1309 ms 45060 KB Output is correct
25 Correct 1399 ms 46644 KB Output is correct
26 Correct 1362 ms 45544 KB Output is correct
27 Correct 1364 ms 44788 KB Output is correct
28 Correct 1665 ms 57624 KB Output is correct
29 Correct 1083 ms 43528 KB Output is correct
30 Correct 1284 ms 53512 KB Output is correct
31 Correct 1388 ms 47444 KB Output is correct
32 Correct 1366 ms 46192 KB Output is correct
33 Correct 1014 ms 45208 KB Output is correct
34 Correct 1342 ms 44660 KB Output is correct
35 Correct 1363 ms 44832 KB Output is correct
36 Correct 461 ms 49128 KB Output is correct
37 Correct 1175 ms 53064 KB Output is correct
38 Correct 1103 ms 43228 KB Output is correct
39 Correct 1261 ms 44640 KB Output is correct
40 Correct 1314 ms 45276 KB Output is correct

Subtask #4
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 33280 KB Output is correct
2 Correct 23 ms 33280 KB Output is correct
3 Correct 24 ms 33280 KB Output is correct
4 Correct 24 ms 33280 KB Output is correct
5 Correct 23 ms 33280 KB Output is correct
6 Correct 23 ms 33280 KB Output is correct
7 Correct 24 ms 33280 KB Output is correct
8 Correct 24 ms 33280 KB Output is correct
9 Correct 23 ms 33152 KB Output is correct
10 Correct 23 ms 33280 KB Output is correct
11 Correct 549 ms 50588 KB Output is correct
12 Correct 540 ms 50584 KB Output is correct
13 Correct 541 ms 49820 KB Output is correct
14 Correct 552 ms 49692 KB Output is correct
15 Correct 554 ms 50072 KB Output is correct
16 Correct 549 ms 49688 KB Output is correct
17 Correct 546 ms 49684 KB Output is correct
18 Correct 541 ms 50828 KB Output is correct
19 Correct 524 ms 49560 KB Output is correct
20 Correct 539 ms 50588 KB Output is correct
21 Correct 548 ms 49816 KB Output is correct
22 Correct 547 ms 49812 KB Output is correct
23 Correct 516 ms 49940 KB Output is correct
24 Correct 544 ms 49688 KB Output is correct
25 Correct 549 ms 49660 KB Output is correct
26 Correct 502 ms 50428 KB Output is correct
27 Correct 536 ms 50584 KB Output is correct
28 Correct 531 ms 49504 KB Output is correct
29 Correct 539 ms 49688 KB Output is correct
30 Correct 541 ms 49688 KB Output is correct
31 Correct 520 ms 49816 KB Output is correct
32 Correct 563 ms 49668 KB Output is correct
33 Correct 548 ms 49688 KB Output is correct
34 Correct 480 ms 50456 KB Output is correct
35 Correct 558 ms 49992 KB Output is correct
36 Correct 550 ms 49816 KB Output is correct
37 Correct 541 ms 49816 KB Output is correct
38 Correct 547 ms 49816 KB Output is correct
39 Correct 553 ms 49816 KB Output is correct
40 Correct 542 ms 49944 KB Output is correct

Subtask #5
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 33280 KB Output is correct
2 Correct 23 ms 33280 KB Output is correct
3 Correct 24 ms 33280 KB Output is correct
4 Correct 24 ms 33280 KB Output is correct
5 Correct 23 ms 33280 KB Output is correct
6 Correct 23 ms 33280 KB Output is correct
7 Correct 24 ms 33280 KB Output is correct
8 Correct 24 ms 33280 KB Output is correct
9 Correct 23 ms 33152 KB Output is correct
10 Correct 23 ms 33280 KB Output is correct
11 Correct 1197 ms 53524 KB Output is correct
12 Correct 1236 ms 52784 KB Output is correct
13 Correct 1180 ms 45916 KB Output is correct
14 Correct 1274 ms 44988 KB Output is correct
15 Correct 1382 ms 45228 KB Output is correct
16 Correct 1341 ms 45008 KB Output is correct
17 Correct 1335 ms 44572 KB Output is correct
18 Correct 1663 ms 57144 KB Output is correct
19 Correct 1085 ms 43424 KB Output is correct
20 Correct 1277 ms 53456 KB Output is correct
21 Correct 1316 ms 57212 KB Output is correct
22 Correct 1268 ms 53320 KB Output is correct
23 Correct 1242 ms 46292 KB Output is correct
24 Correct 1309 ms 45060 KB Output is correct
25 Correct 1399 ms 46644 KB Output is correct
26 Correct 1362 ms 45544 KB Output is correct
27 Correct 1364 ms 44788 KB Output is correct
28 Correct 1665 ms 57624 KB Output is correct
29 Correct 1083 ms 43528 KB Output is correct
30 Correct 1284 ms 53512 KB Output is correct
31 Correct 1388 ms 47444 KB Output is correct
32 Correct 1366 ms 46192 KB Output is correct
33 Correct 1014 ms 45208 KB Output is correct
34 Correct 1342 ms 44660 KB Output is correct
35 Correct 1363 ms 44832 KB Output is correct
36 Correct 461 ms 49128 KB Output is correct
37 Correct 1175 ms 53064 KB Output is correct
38 Correct 1103 ms 43228 KB Output is correct
39 Correct 1261 ms 44640 KB Output is correct
40 Correct 1314 ms 45276 KB Output is correct
41 Correct 549 ms 50588 KB Output is correct
42 Correct 540 ms 50584 KB Output is correct
43 Correct 541 ms 49820 KB Output is correct
44 Correct 552 ms 49692 KB Output is correct
45 Correct 554 ms 50072 KB Output is correct
46 Correct 549 ms 49688 KB Output is correct
47 Correct 546 ms 49684 KB Output is correct
48 Correct 541 ms 50828 KB Output is correct
49 Correct 524 ms 49560 KB Output is correct
50 Correct 539 ms 50588 KB Output is correct
51 Correct 548 ms 49816 KB Output is correct
52 Correct 547 ms 49812 KB Output is correct
53 Correct 516 ms 49940 KB Output is correct
54 Correct 544 ms 49688 KB Output is correct
55 Correct 549 ms 49660 KB Output is correct
56 Correct 502 ms 50428 KB Output is correct
57 Correct 536 ms 50584 KB Output is correct
58 Correct 531 ms 49504 KB Output is correct
59 Correct 539 ms 49688 KB Output is correct
60 Correct 541 ms 49688 KB Output is correct
61 Correct 520 ms 49816 KB Output is correct
62 Correct 563 ms 49668 KB Output is correct
63 Correct 548 ms 49688 KB Output is correct
64 Correct 480 ms 50456 KB Output is correct
65 Correct 558 ms 49992 KB Output is correct
66 Correct 550 ms 49816 KB Output is correct
67 Correct 541 ms 49816 KB Output is correct
68 Correct 547 ms 49816 KB Output is correct
69 Correct 553 ms 49816 KB Output is correct
70 Correct 542 ms 49944 KB Output is correct
71 Runtime error 215 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
72 Halted 0 ms 0 KB -