oj.uz

Submission #47323

# Submission time Handle Problem Language Result Execution time Memory
47323 2018-05-01T03:15:53 Z Talant Fireworks (APIO16_fireworks) C++17
19 / 100
 32 ms 6164 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)1e9 + 7;
const int N = (int)2e5 + 7;

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

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));
      }
      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:38:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () {
       ^

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 4984 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5100 KB Output is correct
2 Correct 8 ms 5156 KB Output is correct
3 Correct 10 ms 5340 KB Output is correct
4 Correct 13 ms 5452 KB Output is correct
5 Correct 13 ms 5456 KB Output is correct
6 Correct 14 ms 5588 KB Output is correct
7 Correct 17 ms 5592 KB Output is correct
8 Correct 19 ms 5744 KB Output is correct
9 Correct 20 ms 5744 KB Output is correct
10 Correct 25 ms 5912 KB Output is correct
11 Correct 22 ms 5964 KB Output is correct
12 Correct 27 ms 5968 KB Output is correct
13 Correct 24 ms 5972 KB Output is correct
14 Correct 26 ms 6108 KB Output is correct
15 Correct 26 ms 6108 KB Output is correct
16 Correct 32 ms 6108 KB Output is correct
17 Correct 25 ms 6164 KB Output is correct
18 Correct 29 ms 6164 KB Output is correct
19 Correct 28 ms 6164 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 4984 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 4984 KB Output isn't correct
2 Halted 0 ms 0 KB -