Submission #125549

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
125549	2019-07-05 21:29:29	The_Wolfpack	Valley (BOI19_valley)	C++14	100 / 100	505 ms	48376 KiB

valley

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#include <bits/stdc++.h>
#define pii pair<int,int>
#define x first
#define y second
#define ll long long
using namespace std;
const int NMAX=1e5+7;
const int LogNMAX=25;
const ll INF=1e18;
int n,s,q,E,tin[NMAX],tout[NMAX],par[LogNMAX][NMAX],lvl[NMAX];
vector<pii> g[NMAX];
ll dp[NMAX], dep[NMAX], mn[LogNMAX][NMAX];
struct edge{int a,b,w;};
edge e[NMAX];
int Time=0;
void Dfs(int son, int p, ll D)
{
    tin[son]=++Time;
    par[0][son]=p;
    dep[son]=D;
    for(pii i:g[son])
    {
        if(i.x==p) continue;
        lvl[i.x]=lvl[son]+1;
        Dfs(i.x, son, D+1LL*i.y);
        dp[son]=min(dp[son],dp[i.x]+1LL*i.y);
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 27 / 27
• Subtask 3: 23 / 23
• Subtask 4: 41 / 41