Submission #1044812

#TimeUsernameProblemLanguageResultExecution timeMemory
1044812hahahahaDostavljač (COCI18_dostavljac)C++17
140 / 140
3 ms2396 KiB
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#define i64 long long #define ld long double #define bit(n,i) ((n>>i)&1) #define pii pair<int,int> #define sz(x) (int)x.size() #define FOR(i,a,b) for(int i=a; i<=b; i++) #define FOD(i,a,b) for(int i=a; i>=b; i--) #define fi first #define se second #define pb push_back #define all(x) x.begin(),x.end() #define __sumairu__ main() #define die_hard_onimai_fan void seggs() #define file(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".out","w",stdout);} #define brute(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".ans","w",stdout);} #define TIME (1.0*clock()/CLOCKS_PER_SEC) #define FAST ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); #define ai(n) array<int,n> #define dbg(x) {cerr<<#x<<' '<<x<<endl;} #define dbgArr(arr,n) {cerr<<#arr;FOR(_i,1,n)cerr<<' '<<(arr)[_i];cerr<<endl;} template <typename T,typename U> ostream& operator<<(ostream &os,pair<T,U>p){ return os<<"{"<<p.fi<<", "<<p.se<<"}"; } mt19937_64 rd(chrono::steady_clock::now().time_since_epoch().count()); #define i64 long long #define debug 0 //const int mod=1e9+7; const int mod=998244353; const int inf=1e9; ///check the limits, dummy const int N=502; vector<int>adj[N]; int c[N]; int dp[N][N][2]; int n,k; int sz[N]; /// rt:1 any:0 void dfs(int u,int p=0) { dp[u][1][1]=dp[u][1][0]=c[u]; sz[u]=1; for(int v:adj[u])if(v!=p) { dfs(v,u); FOD(i,3*sz[u],0) { FOR(j,0,3*sz[v]) { if(i+j+2<=k) { dp[u][i+j+2][1]=max(dp[u][i+j+2][1],dp[u][i][1]+dp[v][j][1]); dp[u][i+j+2][0]=max(dp[u][i+j+2][0],dp[u][i][0]+dp[v][j][1]); } if(i+j+1<=k)dp[u][i+j+1][0]=max(dp[u][i+j+1][0],dp[u][i][1]+dp[v][j][0]); } } sz[u]+=sz[v]; } } die_hard_onimai_fan { cin>>n>>k; FOR(i,1,n)cin>>c[i]; FOR(i,2,n) { int u,v; cin>>u>>v; adj[u].pb(v); adj[v].pb(u); } dfs(1); int ans=0; FOR(i,0,k)ans=max({ans,dp[1][i][0],dp[1][i][1]}); cout<<ans; } __sumairu__ { FAST file(""); int tt=1;//cin>>tt; while(tt--)seggs(); cerr<<"\nTime elapsed: "<<TIME<<" s.\n"; } /** 3 5 9 2 5 1 2 1 3 */

Compilation message (stderr)

dostavljac.cpp:57:21: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   57 | #define __sumairu__ main()
      |                     ^~~~
dostavljac.cpp:132:1: note: in expansion of macro '__sumairu__'
  132 | __sumairu__
      | ^~~~~~~~~~~
dostavljac.cpp: In function 'int main()':
dostavljac.cpp:59:53: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 | #define file(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".out","w",stdout);}
      |                                              ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
dostavljac.cpp:135:5: note: in expansion of macro 'file'
  135 |     file("");
      |     ^~~~
dostavljac.cpp:59:83: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 | #define file(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".out","w",stdout);}
      |                                                                            ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
dostavljac.cpp:135:5: note: in expansion of macro 'file'
  135 |     file("");
      |     ^~~~
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