oj.uz

Submission #47326

# Submission time Handle Problem Language Result Execution time Memory
47326 2018-05-01T03:22:03 Z Talant Fireworks (APIO16_fireworks) C++17
26 / 100
 37 ms 10160 KB 
#include <bits/stdc++.h>

#define mk make_pair
#define sc second
#define fr first
#define pb emplace_back
#define all(s) s.begin(), s.end()
#define sz(s) ( (int)s.size() )
#define int long long

using namespace std;

const int inf = (int)1e18 + 7;
const int N = (int)2e5 + 7;

int n,m;
int x,w;
int dp[302][302];
int ans = inf;
int sum,sm;

vector <int> vec;
vector <pair<int,int> > g[N];

void dfs (int v) {
      for (auto to : g[v]) {
            dfs(to.fr);
            int u = to.fr;
            int w = to.sc;
            for (int i = 0; i <= 300; i ++) {
                  int mn = inf;
                  for (int j = 0; j <= i; j ++) {
                        mn = min(mn,dp[u][j] + abs(i - j - w));
                  }

                  dp[v][i] += mn;
            }
      }
}
main () {
      cin >> n >> m;

      for (int i = 2; i <= n + m; i ++) {
            cin >> x >> w;
            g[x].pb(mk(i,w));
            if (n == 1) {
                  vec.pb(w);
            }
      }
      if (n == 1) {
            for (int j = 0; j < vec.size(); j ++) {
                  sm = 0;
                  for (int i = 0; i < vec.size(); i ++) {
                        sm += abs(vec[i] - vec[j]);
                  }
                  ans = min(ans,sm);
            }
            cout << ans << endl;
            return 0;
      }
      for (int i = n + 1; i <= n + m; i ++)
            for (int j = 1; j <= 300; j ++)
                  dp[i][j] = inf;

      dfs(1);

      for (int i = 0; i <= 300; i ++) {
            ans = min(ans,dp[1][i]);
      }

      cout << ans << endl;
}

Compilation message

fireworks.cpp:40:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () {
       ^
fireworks.cpp: In function 'int main()':
fireworks.cpp:51:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int j = 0; j < vec.size(); j ++) {
                             ~~^~~~~~~~~~~~
fireworks.cpp:53:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                   for (int i = 0; i < vec.size(); i ++) {
                                   ~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB Output is correct
2 Correct 5 ms 5096 KB Output is correct
3 Correct 5 ms 5168 KB Output is correct
4 Correct 6 ms 5168 KB Output is correct
5 Correct 5 ms 5168 KB Output is correct
6 Correct 5 ms 5168 KB Output is correct
7 Correct 6 ms 5276 KB Output is correct
8 Correct 6 ms 5276 KB Output is correct
9 Correct 5 ms 5276 KB Output is correct
10 Correct 5 ms 5336 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5336 KB Output is correct
2 Correct 8 ms 5392 KB Output is correct
3 Correct 9 ms 5392 KB Output is correct
4 Correct 11 ms 5540 KB Output is correct
5 Correct 14 ms 5540 KB Output is correct
6 Correct 14 ms 5648 KB Output is correct
7 Correct 16 ms 5648 KB Output is correct
8 Correct 18 ms 5648 KB Output is correct
9 Correct 19 ms 5776 KB Output is correct
10 Correct 37 ms 5776 KB Output is correct
11 Correct 21 ms 5904 KB Output is correct
12 Correct 34 ms 6040 KB Output is correct
13 Correct 36 ms 6040 KB Output is correct
14 Correct 37 ms 6040 KB Output is correct
15 Correct 26 ms 6060 KB Output is correct
16 Correct 25 ms 6064 KB Output is correct
17 Correct 30 ms 6064 KB Output is correct
18 Correct 26 ms 6064 KB Output is correct
19 Correct 29 ms 6088 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB Output is correct
2 Correct 5 ms 5096 KB Output is correct
3 Correct 5 ms 5168 KB Output is correct
4 Correct 6 ms 5168 KB Output is correct
5 Correct 5 ms 5168 KB Output is correct
6 Correct 5 ms 5168 KB Output is correct
7 Correct 6 ms 5276 KB Output is correct
8 Correct 6 ms 5276 KB Output is correct
9 Correct 5 ms 5276 KB Output is correct
10 Correct 5 ms 5336 KB Output is correct
11 Correct 6 ms 5336 KB Output is correct
12 Correct 8 ms 5392 KB Output is correct
13 Correct 9 ms 5392 KB Output is correct
14 Correct 11 ms 5540 KB Output is correct
15 Correct 14 ms 5540 KB Output is correct
16 Correct 14 ms 5648 KB Output is correct
17 Correct 16 ms 5648 KB Output is correct
18 Correct 18 ms 5648 KB Output is correct
19 Correct 19 ms 5776 KB Output is correct
20 Correct 37 ms 5776 KB Output is correct
21 Correct 21 ms 5904 KB Output is correct
22 Correct 34 ms 6040 KB Output is correct
23 Correct 36 ms 6040 KB Output is correct
24 Correct 37 ms 6040 KB Output is correct
25 Correct 26 ms 6060 KB Output is correct
26 Correct 25 ms 6064 KB Output is correct
27 Correct 30 ms 6064 KB Output is correct
28 Correct 26 ms 6064 KB Output is correct
29 Correct 29 ms 6088 KB Output is correct
30 Runtime error 10 ms 10160 KB Execution killed with signal 11 (could be triggered by violating memory limits)
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB Output is correct
2 Correct 5 ms 5096 KB Output is correct
3 Correct 5 ms 5168 KB Output is correct
4 Correct 6 ms 5168 KB Output is correct
5 Correct 5 ms 5168 KB Output is correct
6 Correct 5 ms 5168 KB Output is correct
7 Correct 6 ms 5276 KB Output is correct
8 Correct 6 ms 5276 KB Output is correct
9 Correct 5 ms 5276 KB Output is correct
10 Correct 5 ms 5336 KB Output is correct
11 Correct 6 ms 5336 KB Output is correct
12 Correct 8 ms 5392 KB Output is correct
13 Correct 9 ms 5392 KB Output is correct
14 Correct 11 ms 5540 KB Output is correct
15 Correct 14 ms 5540 KB Output is correct
16 Correct 14 ms 5648 KB Output is correct
17 Correct 16 ms 5648 KB Output is correct
18 Correct 18 ms 5648 KB Output is correct
19 Correct 19 ms 5776 KB Output is correct
20 Correct 37 ms 5776 KB Output is correct
21 Correct 21 ms 5904 KB Output is correct
22 Correct 34 ms 6040 KB Output is correct
23 Correct 36 ms 6040 KB Output is correct
24 Correct 37 ms 6040 KB Output is correct
25 Correct 26 ms 6060 KB Output is correct
26 Correct 25 ms 6064 KB Output is correct
27 Correct 30 ms 6064 KB Output is correct
28 Correct 26 ms 6064 KB Output is correct
29 Correct 29 ms 6088 KB Output is correct
30 Runtime error 10 ms 10160 KB Execution killed with signal 11 (could be triggered by violating memory limits)
31 Halted 0 ms 0 KB -