Submission #722729

#TimeUsernameProblemLanguageResultExecution timeMemory
722729ktkeremRace (IOI11_race)C++17
Compilation error
0 ms0 KiB
/*#pragma GCC target ("avx2") #pragma GCC optimize ("O3") #pragma GCC optimize("Ofast") #pragma GCC optimize ("unroll-loops") #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/ #include<bits/stdc++.h> #include "race.h" typedef long long ll; typedef long double ld; typedef __int128 vll; typedef long long ftyp; typedef std::complex<ftyp> vec; #define llll std::pair<ll , ll> #define pb push_back #define fi first #define sec second #define cx real #define cy imag #define all(a) a.begin() , a.end() #define debug std::cout << "!!ALERT ALERT!!" << std::endl; const ll limit = 1e12+7; const ll sus = 2e5+5; std::mt19937 rng(std::chrono::steady_clock::now().time_since_epoch().count()); std::vector<llll> adj[sus]; ll ddc = 0 , dd[sus] , vis[sus] , sub[sus] , ff; std::map<ll , ll> mp[sus]; ll calsub(ll crt , ll prv){ //std::cout << crt << " " << prv << std::endl; sub[crt] = 1; vis[crt] = 1; for(auto j:adj[crt]){ if(j.fi != prv && vis[j.fi] == 0){ sub[crt]+=calsub(j.fi , crt); } } return sub[crt]; } ll fndcent(ll crt , ll prv , ll prt){ //std::cout << crt << " " << prv << " " << prt << std::endl; ll kd = (prt > ff?0:1); ll p = -1; for(auto j:adj[crt]){ if(j.fi != prv && dd[j.fi] == 0){ ll i = fndcent(j.fi , crt , sub[crt] - sub[j.fi] + prt); if(p == -1){ p = i; } if(sub[j.fi] > ff){ kd =0; } } } if(kd){ return crt; } return p; } void ctf(ll crt , ll prv , ll fpr , ll o , ll p){ //std::cout << crt << " " << prv << " " << fpr << std::endl; if(mp[p][fpr] == 0){ mp[p][fpr] = o; } mp[p][fpr] = std::min(mp[p][fpr] , o); for(auto j:adj[crt]){ if(j.fi != prv && dd[j.fi] == 0){ ctf(j.fi , crt , fpr + j.sec , o+1 , p); } } } ll calans(ll crt ,ll k){ ddc++; //std::cout << crt << " " << k << std::endl; dd[crt] = 1; ll jj = 0; ll x = 0; for(auto j:adj[crt]){ if(dd[j.fi]==0){ mp[x].clear(); x++; } } for(auto j:adj[crt]){ if(dd[j.fi]==0){ ctf(j.fi , crt , j.sec , 1 , jj++); } } ll ns = limit; std::map<ll , ll> mpx; mpx[0] = 0; for(ll i = 0;x>i;i++){ for(auto j:mp[i]){ if(mpx[k-j.fi] != 0 || k - j.fi == 0){ ns = std::min(mpx[k-j.fi] + j.sec , ns); } } for(auto j:mp[i]){ if(j.fi == 0){ //do nothing } else if(mpx[j.fi] == 0){ mpx[j.fi] = j.sec; } else{ mpx[j.fi] = std::min(j.sec , mpx[j.fi]); } } } return ns; } ll best_path(ll n , ll k , ll h[][2] ,ll cst[]){ for(ll i = 0 ; n-1>i;i++){ //std::cout << h[i][0] << " " << h[i][1] << " " << cst[i] << std::endl; adj[h[i][0]].pb({h[i][1] , cst[i]}); adj[h[i][1]].pb({h[i][0] , cst[i]}); } ll ans = limit; ddc = 0; for(ll i = 0 ; n>=i;i++){ dd[i] = 0; } while(n > ddc){ for(ll i = 0;n>i;i++){ if(vis[i] == 0){ calsub(i , -1); ff = sub[i]/2; ll cento = fndcent(i , -1 , 0); ans = std::min(calans(cento , k) , ans); } } for(ll i = 0;n>i;i++){ vis[i] = dd[i]; sub[i] = 0; } } if(ans == limit){ return -1; } return ans; } /*void solve(){ ll n , k;std::cin >> n >> k; std::cout << n << " " << k << std::endl; ll alcst[n+5] , hkn[n+5][2]; for(ll i = 0;n-1>i;i++){ for(ll j = 0;2>j;j++){ std::cin >> hkn[i][j]; } std::cin >> alcst[i]; } ll ots = best_path(n , k , hkn , alcst); std::cout << ots << "\n"; return; } int main(){ std::ios_base::sync_with_stdio(false);std::cin.tie(NULL); #ifndef ONLINE_JUDGE freopen("in.txt" , "r" , stdin); freopen("out.txt" , "w" , stdout); #endif ll t = 1; //std::cin >> t; while(t--){ solve(); } }*/

Compilation message (stderr)

race.cpp:5:78: warning: "/*" within comment [-Wcomment]
    5 | #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/
      |                                                                               
/usr/bin/ld: /tmp/cc0anruD.o: in function `main':
grader.cpp:(.text.startup+0x28): undefined reference to `best_path(int, int, int (*) [2], int*)'
collect2: error: ld returned 1 exit status