oj.uz

Submission #242290

# Submission time Handle Problem Language Result Execution time Memory
242290 2020-06-27T08:19:07 Z dwsc Magic Tree (CEOI19_magictree) C++14
34 / 100
 2000 ms 796904 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
int n,m,k;
vector<int> adj[100010];
int ripe[100010];
int weight[100010];
int memo[100010][1010];
int dp(int u,int j){
    if (j == 0) return 0;
    if (memo[u][j] != -1) return memo[u][j];
    int s = 0;
    for (int i = 0; i < adj[u].size(); i++){
        int v = adj[u][i];
        s += dp(v,j);
    }
    if (j == ripe[u]) s += weight[u];
    return memo[u][j] = max(s,dp(u,j-1));
}
main(){
    cin >> n >> m >> k;
    for (int i = 2; i <= n; i++){
        int p;
        cin >> p;
        adj[p].push_back(i);
    }
    vector<int> temp;
    temp.push_back(0);
    for (int i = 0; i < m; i++){
        int v,d,w;
        cin >> v >> d >> w;
        ripe[v] = d;
        weight[v] = w;
        temp.push_back(d);
    }
    sort(temp.begin(),temp.end());
    temp.erase(unique(temp.begin(),temp.end()),temp.end());
    for (int i = 1; i <= n; i++) ripe[i] = lower_bound(temp.begin(),temp.end(),ripe[i])-temp.begin();
    //for (int i = 1; i <= n; i++) cout << ripe[i] << "\n";
    for (int i = 1; i <= n; i++) for (int j = 0; j < temp.size(); j++) memo[i][j] = -1;
    assert(temp.size() <= 1010);
    cout << dp(1,temp.size()-1);
}

Compilation message

magictree.cpp: In function 'long long int dp(long long int, long long int)':
magictree.cpp:13:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < adj[u].size(); i++){
                     ~~^~~~~~~~~~~~~~~
magictree.cpp: At global scope:
magictree.cpp:20:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
magictree.cpp: In function 'int main()':
magictree.cpp:40:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 1; i <= n; i++) for (int j = 0; j < temp.size(); j++) memo[i][j] = -1;
                                                  ~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2816 KB Output is correct
3 Correct 6 ms 2816 KB Output is correct
4 Correct 6 ms 2816 KB Output is correct
5 Correct 7 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 6 ms 2816 KB Output is correct
8 Correct 6 ms 2816 KB Output is correct
9 Correct 6 ms 2816 KB Output is correct

Subtask #2
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2124 ms 774248 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 9984 KB Output is correct
2 Correct 14 ms 9856 KB Output is correct
3 Correct 14 ms 9856 KB Output is correct
4 Execution timed out 2094 ms 288368 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 361 ms 410220 KB Output is correct
2 Correct 342 ms 408808 KB Output is correct
3 Correct 356 ms 412896 KB Output is correct
4 Correct 345 ms 408932 KB Output is correct
5 Correct 355 ms 416296 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2816 KB Output is correct
3 Correct 6 ms 2816 KB Output is correct
4 Correct 6 ms 2816 KB Output is correct
5 Correct 7 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 6 ms 2816 KB Output is correct
8 Correct 6 ms 2816 KB Output is correct
9 Correct 6 ms 2816 KB Output is correct
10 Correct 412 ms 424172 KB Output is correct
11 Correct 392 ms 416364 KB Output is correct
12 Correct 395 ms 426628 KB Output is correct
13 Correct 377 ms 423016 KB Output is correct
14 Correct 349 ms 430064 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 161528 KB Output is correct
2 Correct 1261 ms 796904 KB Output is correct
3 Correct 1254 ms 796792 KB Output is correct
4 Correct 1477 ms 796792 KB Output is correct
5 Execution timed out 2135 ms 796012 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #7
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2816 KB Output is correct
3 Correct 6 ms 2816 KB Output is correct
4 Correct 6 ms 2816 KB Output is correct
5 Correct 7 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 6 ms 2816 KB Output is correct
8 Correct 6 ms 2816 KB Output is correct
9 Correct 6 ms 2816 KB Output is correct
10 Correct 14 ms 9984 KB Output is correct
11 Correct 14 ms 9856 KB Output is correct
12 Correct 14 ms 9856 KB Output is correct
13 Execution timed out 2094 ms 288368 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #8
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2816 KB Output is correct
3 Correct 6 ms 2816 KB Output is correct
4 Correct 6 ms 2816 KB Output is correct
5 Correct 7 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 6 ms 2816 KB Output is correct
8 Correct 6 ms 2816 KB Output is correct
9 Correct 6 ms 2816 KB Output is correct
10 Execution timed out 2124 ms 774248 KB Time limit exceeded
11 Halted 0 ms 0 KB -