Submission #994433

#TimeUsernameProblemLanguageResultExecution timeMemory
994433De3b0oPaths (RMI21_paths)C++14
12 / 100
46 ms15720 KiB
#include<bits/stdc++.h> #define ll long long #define F first #define S second #define in insert #define pb push_back #define ppb pop_back() #define d3 ios::sync_with_stdio(0);cin.tie(0);cout.tie(0); #define cans cout << ans << "\n"; #define yes cout << "Yes" << "\n"; #define no cout << "No" << "\n"; #define pll pair<ll,ll> #define lin cout << "\n"; #define sqr 340 #define mod 1000000007 #define mid ((l+r)/2) #define lc (2*n) #define rc (2*n+1) using namespace std; ll fp(ll x , ll y) { if(y==0) return 1; ll z = fp(x,y/2); if(y&1) return z*z*x; else return z*z; } int sqrot(ll x) { int l = 0 , r = INT_MAX; while(l<=r) { if(mid*mid>=x) r=mid-1; else l=mid+1; } return r+1; } ll cel(ll x , ll y) { return x/y + bool(x%y); } string tb(ll x) { string s = ""; while(x>0) { if(x&1) s+='1'; else s+='0'; x/=2; } while(s.size()<60) s+='0'; return s; } ll fb(string s) { ll x = 0; ll c = 1; for(int8_t i = 0 ; 60>i ; i++) { if(s[i]=='1') x+=c; c*=2; } return x; } ll n , k; vector<pll> adj[100009]; ll mx1[100009] , mx2[100009] , c1[100009] , c2[100009]; void dpt1(ll x , ll p) { for(auto it : adj[x]) { if(it.F==p) continue; dpt1(it.F,x); if(mx1[it.F]+it.S>mx1[x]) { mx2[x]=mx1[x]; c2[x]=c1[x]; mx1[x]=mx1[it.F]+it.S; c1[x]=it.F; } else if(mx1[it.F]+it.S>mx2[x]) { mx2[x]=mx1[it.F]+it.S; c2[x]=it.F; } } } void dpt2(ll x , ll p , ll c) { if(x!=1) { ll y = c; if(c1[p]!=x) y+=mx1[p]; else y+=mx2[p]; if(y>mx1[x]) { mx2[x]=mx1[x]; c2[x]=c1[x]; mx1[x]=y; c1[x]=p; } else if(y>mx2[x]) { mx2[x]=y; c2[x]=p; } } for(auto it : adj[x]) { if(it.F!=p) dpt2(it.F,x,it.S); } } int main() { d3 cin >> n >> k; for(int i = 0 ; n-1>i ; i++) { ll x , y , c; cin >> x >> y >> c; adj[x].pb({y,c}); adj[y].pb({x,c}); } dpt1(1,0); dpt2(1,0,0); for(int i = 1 ; n>=i ; i++) cout << mx1[i] << "\n"; }
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...