oj.uz

Submission #255654

# Submission time Handle Problem Language Result Execution time Memory
255654 2020-08-01T13:34:36 Z egekabas Snake Escaping (JOI18_snake_escaping) C++14
12 / 100
 1014 ms 65540 KB 
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long   ll;
typedef unsigned long long   ull;
typedef long double ld;
typedef pair<ll, ll>    pll;
typedef pair<ull, ull>    pull;
typedef pair<ll, ll>  pii;
typedef pair<ld, ld>  pld;
ll l, q;
string s;
ll totzero = 0;
ll a = 9, b = 5;
ll sum[(1<<13)+10][(1<<7)+10];
ll p3[30];
unordered_map<ll, ll> dp[23][(1<<13)+10];
ll v2;
ll calc(ll step, ll idx, ll val){
    if(dp[step][idx][val] != 0){ 
        return dp[step][idx][val]-1;
    }
    if(step == a || step == s.size()){
        //cout << s << '\n' << idx << '\n';
        dp[step][idx][val] = sum[idx][v2]+1;
        return dp[step][idx][val]-1;
    }
    dp[step][idx][val] = 1;
    if(s[step] != '1')
        dp[step][idx][val] += calc(step+1, idx, val/3);
    if(s[step] != '0')
        dp[step][idx][val] += calc(step+1, idx+(1LL<<step), val/3);
    
    return dp[step][idx][val]-1;
}
    
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    //freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
    
    p3[0] = 1;
    for(ll i = 1; i < 30; ++i)
        p3[i] = 3*p3[i-1];
    cin >> l >> q;
    ll n = (1<<l);
    cin >> s;
    for(ll i = 0; i < n; ++i){
        ll v1 = (i&((1<<a)-1));
        for(ll bit = 0; bit < (1<<b); ++bit){
            ll idx = 0;
            ll val = (i>>a);
            for(ll j = 0; j < b; ++j){
                if((1<<j)&bit)
                    idx += p3[j]*(val%2);
                else
                    idx += p3[j]*2;
                val /= 2;
            }
            sum[v1][idx] += s[i]-'0';
        }
    }
    for(ll i = 0; i < q; ++i){
        cin >> s;
        reverse(s.begin(), s.end());
        ll v1 = 0;
        for(ll i = 0; i < s.size(); ++i){
            if(s[i] == '1')
                v1 += p3[i];
            else if(s[i] == '?')
                v1 += 2*p3[i];
        }
        v2 = 0;
        for(ll i = a; i < s.size(); ++i){
            if(s[i] == '1')
                v2 += p3[i-a];
            else if(s[i] == '?')
                v2 += 2*p3[i-a];
        }
        cout << calc(0, 0, v1) << '\n';
    }
}

Compilation message

snake_escaping.cpp: In function 'll calc(ll, ll, ll)':
snake_escaping.cpp:26:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(step == a || step == s.size()){
                     ~~~~~^~~~~~~~~~~
snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:72:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(ll i = 0; i < s.size(); ++i){
                       ~~^~~~~~~~~~
snake_escaping.cpp:79:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(ll i = a; i < s.size(); ++i){
                       ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 11520 KB Output is correct
2 Correct 10 ms 11648 KB Output is correct
3 Correct 11 ms 11776 KB Output is correct
4 Correct 11 ms 11904 KB Output is correct
5 Correct 15 ms 12416 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 14 ms 12288 KB Output is correct
8 Correct 8 ms 11264 KB Output is correct
9 Correct 9 ms 11392 KB Output is correct
10 Correct 9 ms 11648 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 11520 KB Output is correct
2 Correct 10 ms 11648 KB Output is correct
3 Correct 11 ms 11776 KB Output is correct
4 Correct 11 ms 11904 KB Output is correct
5 Correct 15 ms 12416 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 14 ms 12288 KB Output is correct
8 Correct 8 ms 11264 KB Output is correct
9 Correct 9 ms 11392 KB Output is correct
10 Correct 9 ms 11648 KB Output is correct
11 Correct 262 ms 15608 KB Output is correct
12 Correct 286 ms 15352 KB Output is correct
13 Correct 315 ms 16120 KB Output is correct
14 Correct 292 ms 15948 KB Output is correct
15 Correct 276 ms 17528 KB Output is correct
16 Correct 327 ms 18104 KB Output is correct
17 Correct 374 ms 22148 KB Output is correct
18 Correct 211 ms 16376 KB Output is correct
19 Correct 238 ms 13432 KB Output is correct
20 Correct 271 ms 15352 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 11520 KB Output is correct
2 Correct 10 ms 11648 KB Output is correct
3 Correct 11 ms 11776 KB Output is correct
4 Correct 11 ms 11904 KB Output is correct
5 Correct 15 ms 12416 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 14 ms 12288 KB Output is correct
8 Correct 8 ms 11264 KB Output is correct
9 Correct 9 ms 11392 KB Output is correct
10 Correct 9 ms 11648 KB Output is correct
11 Correct 262 ms 15608 KB Output is correct
12 Correct 286 ms 15352 KB Output is correct
13 Correct 315 ms 16120 KB Output is correct
14 Correct 292 ms 15948 KB Output is correct
15 Correct 276 ms 17528 KB Output is correct
16 Correct 327 ms 18104 KB Output is correct
17 Correct 374 ms 22148 KB Output is correct
18 Correct 211 ms 16376 KB Output is correct
19 Correct 238 ms 13432 KB Output is correct
20 Correct 271 ms 15352 KB Output is correct
21 Incorrect 298 ms 17856 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 11520 KB Output is correct
2 Correct 10 ms 11648 KB Output is correct
3 Correct 11 ms 11776 KB Output is correct
4 Correct 11 ms 11904 KB Output is correct
5 Correct 15 ms 12416 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 14 ms 12288 KB Output is correct
8 Correct 8 ms 11264 KB Output is correct
9 Correct 9 ms 11392 KB Output is correct
10 Correct 9 ms 11648 KB Output is correct
11 Runtime error 1014 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
12 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 11520 KB Output is correct
2 Correct 10 ms 11648 KB Output is correct
3 Correct 11 ms 11776 KB Output is correct
4 Correct 11 ms 11904 KB Output is correct
5 Correct 15 ms 12416 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 14 ms 12288 KB Output is correct
8 Correct 8 ms 11264 KB Output is correct
9 Correct 9 ms 11392 KB Output is correct
10 Correct 9 ms 11648 KB Output is correct
11 Correct 262 ms 15608 KB Output is correct
12 Correct 286 ms 15352 KB Output is correct
13 Correct 315 ms 16120 KB Output is correct
14 Correct 292 ms 15948 KB Output is correct
15 Correct 276 ms 17528 KB Output is correct
16 Correct 327 ms 18104 KB Output is correct
17 Correct 374 ms 22148 KB Output is correct
18 Correct 211 ms 16376 KB Output is correct
19 Correct 238 ms 13432 KB Output is correct
20 Correct 271 ms 15352 KB Output is correct
21 Incorrect 298 ms 17856 KB Output isn't correct
22 Halted 0 ms 0 KB -