oj.uz

Submission #230134

# Submission time Handle Problem Language Result Execution time Memory
230134 2020-05-08T16:55:36 Z xiaowuc1 Walk (POI13_spa) C++14
36 / 100
 5000 ms 248464 KB 
#include <algorithm>
#include <bitset>
#include <cassert>
#include <chrono>
#include <complex>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <vector>

using namespace std;

// BEGIN NO SAD
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define trav(a, x) for(auto& a : x)
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define derr if(1) cerr
typedef vector<int> vi;
// END NO SAD

typedef long long ll;
typedef pair<int, int> pii;
typedef vector<vector<ll>> matrix;

typedef pair<int, pii> state;

ll parse() {
  string s;
  cin >> s;
  ll ret = 0;
  for(int i = 0; i < sz(s); i++) {
    ret <<= 1;
    ret |= s[i] == '1';
  }
  return ret;
}
set<ll> bad;
int n, k;
bool finite(ll src, ll snk) {
  set<ll> s;
  vector<ll> all;
  all.reserve(n*k+k+1);
  all.push_back(src);
  s.insert(src);
  for(int i = 0; i < sz(all) && sz(all) <= n*k; i++) {
    for(int j = 0; j < n; j++) {
      ll curr = all[i] ^ (1LL << j);
      if(s.count(curr) || bad.count(curr)) continue;
      s.insert(curr);
      all.push_back(curr);
    }
  }
  return !s.count(snk) && sz(all) <= n*k;
}
void solve() {
  cin >> n >> k;
  ll src = parse();
  ll snk = parse();
  for(int i = 0; i < k; i++) {
    bad.insert(parse());
  }
  if(finite(src, snk) || finite(snk, src)) cout << "NIE\n";
  else cout << "TAK\n";
}
// are there edge cases (N=1?)
// are array sizes proper (scaled by proper constant, for example 2* for koosaga tree)
// integer overflow?
// DS reset properly between test cases

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL); cout.tie(NULL);
  solve();
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 508 KB Output is correct
2 Correct 7 ms 512 KB Output is correct
3 Correct 14 ms 512 KB Output is correct
4 Correct 56 ms 1280 KB Output is correct
5 Correct 29 ms 1272 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 114 ms 15224 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 408 ms 12780 KB Output is correct
2 Correct 914 ms 18308 KB Output is correct
3 Execution timed out 5077 ms 103068 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 512 KB Output is correct
2 Correct 117 ms 8184 KB Output is correct
3 Correct 233 ms 8356 KB Output is correct
4 Correct 58 ms 2688 KB Output is correct
5 Correct 30 ms 2688 KB Output is correct
6 Correct 6 ms 384 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 640 KB Output is correct
2 Correct 6 ms 512 KB Output is correct
3 Correct 101 ms 5752 KB Output is correct
4 Correct 420 ms 15352 KB Output is correct
5 Correct 193 ms 15480 KB Output is correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 6264 KB Output is correct
2 Execution timed out 5087 ms 248464 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 5352 KB Output is correct
2 Correct 1235 ms 70776 KB Output is correct
3 Correct 2547 ms 70988 KB Output is correct
4 Execution timed out 5078 ms 193928 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #7
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 249 ms 10232 KB Output is correct
2 Execution timed out 5068 ms 135332 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #8
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 265 ms 9932 KB Output is correct
2 Correct 156 ms 6136 KB Output is correct
3 Execution timed out 5068 ms 99324 KB Time limit exceeded
4 Halted 0 ms 0 KB -