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Submission #283415

# Submission time Handle Problem Language Result Execution time Memory
283415 2020-08-25T16:55:44 Z AlexLuchianov Paths (BOI18_paths) C++14
100 / 100
 1129 ms 97400 KB 
#include <iostream>
#include <vector>
#include <cassert>
#include <cmath>

using ll = long long;
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) < (b)) ? (b) : (a))

int const nmax = 300000;
int const sigma = 5;
int v[1 + nmax];
ll dp[1 + nmax][1 << sigma];
std::vector<int> g[1 + nmax];

int main() {
  int n, m, k;
  std::cin >> n >> m >> k;
  for(int i = 1;i <= n; i++) {
    std::cin >> v[i];
    v[i]--;
  }
  
  for(int i = 1;i <= m; i++) {
    int x, y;
    std::cin >> x >> y;
    g[x].push_back(y);
    g[y].push_back(x);
  }
  ll result = 0;
  for(int mask = 1; mask < (1 << sigma); mask++) {
    for(int i = 1; i <= n; i++) {
      if(0 < ((1 << v[i]) & mask)) {
        if(0 < ((1 << v[i]) ^ mask)) {
          for(int h = 0; h < g[i].size(); h++) {
            int to = g[i][h];
            dp[i][mask] += dp[to][mask ^ (1 << v[i])];
          }
        } else
          dp[i][mask] = 1;
      }
      result += dp[i][mask];
    }
  }
  std::cout << result - n;
  return 0;
}

Compilation message

paths.cpp: In function 'int main()':
paths.cpp:35:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |           for(int h = 0; h < g[i].size(); h++) {
      |                          ~~^~~~~~~~~~~~~

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7328 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 6 ms 7680 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 7 ms 7424 KB Output is correct
7 Correct 5 ms 7424 KB Output is correct
8 Correct 5 ms 7424 KB Output is correct
9 Correct 5 ms 7424 KB Output is correct
10 Correct 6 ms 7424 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 331 ms 12280 KB Output is correct
2 Correct 273 ms 11104 KB Output is correct
3 Correct 1079 ms 96376 KB Output is correct
4 Correct 508 ms 22860 KB Output is correct
5 Correct 508 ms 22904 KB Output is correct
6 Correct 846 ms 69608 KB Output is correct
7 Correct 1091 ms 96632 KB Output is correct
8 Correct 1094 ms 97400 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7328 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 6 ms 7680 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 7 ms 7424 KB Output is correct
7 Correct 5 ms 7424 KB Output is correct
8 Correct 5 ms 7424 KB Output is correct
9 Correct 5 ms 7424 KB Output is correct
10 Correct 6 ms 7424 KB Output is correct
11 Correct 331 ms 12280 KB Output is correct
12 Correct 273 ms 11104 KB Output is correct
13 Correct 1079 ms 96376 KB Output is correct
14 Correct 508 ms 22860 KB Output is correct
15 Correct 508 ms 22904 KB Output is correct
16 Correct 846 ms 69608 KB Output is correct
17 Correct 1091 ms 96632 KB Output is correct
18 Correct 1094 ms 97400 KB Output is correct
19 Correct 333 ms 15084 KB Output is correct
20 Correct 272 ms 13560 KB Output is correct
21 Correct 1082 ms 96632 KB Output is correct
22 Correct 542 ms 22848 KB Output is correct
23 Correct 549 ms 22776 KB Output is correct
24 Correct 816 ms 69424 KB Output is correct
25 Correct 1063 ms 96524 KB Output is correct
26 Correct 1078 ms 97248 KB Output is correct
27 Correct 293 ms 13304 KB Output is correct
28 Correct 390 ms 16800 KB Output is correct
29 Correct 1129 ms 96632 KB Output is correct
30 Correct 787 ms 55536 KB Output is correct
31 Correct 778 ms 55664 KB Output is correct
32 Correct 1081 ms 96504 KB Output is correct
33 Correct 5 ms 7424 KB Output is correct
34 Correct 5 ms 7424 KB Output is correct
35 Correct 5 ms 7424 KB Output is correct
36 Correct 5 ms 7424 KB Output is correct
37 Correct 5 ms 7424 KB Output is correct
38 Correct 5 ms 7424 KB Output is correct
39 Correct 5 ms 7424 KB Output is correct
40 Correct 6 ms 7424 KB Output is correct
41 Correct 5 ms 7424 KB Output is correct
42 Correct 5 ms 7424 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 91 ms 8824 KB Output is correct
3 Correct 91 ms 8824 KB Output is correct
4 Correct 314 ms 35908 KB Output is correct
5 Correct 244 ms 36592 KB Output is correct
6 Correct 314 ms 35832 KB Output is correct
7 Correct 92 ms 8776 KB Output is correct
8 Correct 324 ms 35832 KB Output is correct
9 Correct 252 ms 36588 KB Output is correct
10 Correct 295 ms 36448 KB Output is correct
11 Correct 217 ms 22260 KB Output is correct
12 Correct 224 ms 29552 KB Output is correct
13 Correct 209 ms 22256 KB Output is correct
14 Correct 353 ms 35960 KB Output is correct
15 Correct 325 ms 35988 KB Output is correct
16 Correct 5 ms 7424 KB Output is correct
17 Correct 5 ms 7424 KB Output is correct
18 Correct 6 ms 7424 KB Output is correct
19 Correct 5 ms 7424 KB Output is correct
20 Correct 5 ms 7424 KB Output is correct
21 Correct 5 ms 7424 KB Output is correct
22 Correct 6 ms 7424 KB Output is correct
23 Correct 5 ms 7424 KB Output is correct
24 Correct 5 ms 7552 KB Output is correct
25 Correct 5 ms 7424 KB Output is correct