Submission #729698

#	Time	Username	Problem	Language	Result	Execution time	Memory
729698		ktkerem	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	629 ms	284844 KiB

boxes

/*#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>
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 = 1e5+5;
std::mt19937 rng(std::chrono::steady_clock::now().time_since_epoch().count());
ll delivery(int n , int k , int l , int pos[]){
  ll lpos[n+1];
  for(ll i = 0;n>i;i++){
    lpos[i+1] = pos[i];
  }
  ll pre[n+2] , suf[n+2];
  pre[0] = suf[n+1] = 0;
  for(ll i = 1;n>=i;i++){
    pre[i] = lpos[i]*2;
    if(i > k) pre[i] += pre[i-k];
    suf[n-i+1]=(l - lpos[n-i+1]) * 2;
    if(n-i+k <= n){
      suf[n-i+1] += suf[n-i+1+k];
    } 
  }
  ll ans = suf[1];
  for(ll i = 0;n>=i;i++){
    ans = std::min(ans , pre[i] + suf[i+1]);
    if(i+k <= n) ans = std::min(ans , pre[i] + l + suf[i+k+1]);
    else ans = std::min(ans , pre[i] + l);    
  }
  return ans;
}
/*void solve(){

  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)

boxes.cpp:5:78: warning: "/*" within comment [-Wcomment]
    5 | #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/
      |

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30