Submission #1291567

#	Time	Username	Problem	Language	Result	Execution time	Memory
1291567		jahongir	Paths (RMI21_paths)	C++20	36 / 100	1096 ms	24016 KiB

Main

#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
template<typename T> using ordered_set = tree<T,null_type,less_equal<T>,rb_tree_tag,
					 tree_order_statistics_node_update>;

#define ll long long
#define pi pair<int,int>
#define vi vector<int>
#define pb push_back
#define all(a) a.begin(),a.end()  


const int mxn = 2001;
vector<pi> g[mxn];
ll dp[mxn][mxn];
int sub[mxn];



void pre_dfs(int u, int p){
    sub[u] = 1;
    dp[u][0] = dp[u][1] = 0;
    for(auto [v,c] : g[u]) if(v!=p){
        pre_dfs(v,u);

        for(int i = 1; i <= sub[v]; i++)
            dp[u][i+sub[u]] = 0;
        for(int i = sub[u]; i >= 0; i--)
            for(int j = sub[v]; j >= 1; j--){
                dp[u][i+j] = max(dp[u][i+j],dp[u][i]+dp[v][j]+c);
            }

        sub[u] += sub[v];
    }
}






void solve(){
    int n,k; cin >> n >> k;

    for(int i = 1; i < n; i++){
        int u,v,c; cin >> u >> v >> c;
        g[u].pb({v,c}); g[v].pb({u,c});
    }

    for(int i = 1; i <= n; i++){
        pre_dfs(i,i);
        cout << dp[i][k] << '\n';
    }

}



signed main(){
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
    // cin >> t;
    while(t--){solve();}
}

• Subtask 1: 8 / 8
• Subtask 2: 11 / 11
• Subtask 3: 17 / 17
• Subtask 4: 0 / 20
• Subtask 5: 0 / 12
• Subtask 6: 0 / 32