Submission #980929

#	Time	Username	Problem	Language	Result	Execution time	Memory
980929		vjudge1	추월 (IOI23_overtaking)	C++17	65 / 100	3514 ms	26452 KiB

overtaking

// hola soy Dember :D
// 31/03/2024

#include <bits/stdc++.h>
#include "overtaking.h"

#define ll long long 
#define pll pair<ll,ll>
//#define F first
//#define S second 
#define Z size()
#define pb push_back
#define bp pop_back
#define fo(x,y,z) for(ll x=y; x<=z; x++)
#define of(x,y,z) for(ll x=y; x>=z; x--)
#define all(n) n.begin(), n.end()
#define arr(x,y,z) x+y, x+y+z

using namespace std;
 
const int MN=1e3+3;
 
ll n, m, xd, zd, ans, l, r;
ll a[MN], b[MN][MN], f[MN][MN], g[MN][MN], t[MN], w[MN], s[MN];
 
void init(int L, int N, vector<ll> T, vector<int> W, int X, int M, vector<int> S){
    n=N; m=M;
    
    fo(i,0,n-1)a[i]=i, f[i][0]=t[i]=T[i], w[i]=W[i];w[n]=X;
    fo(i,0,m-1)s[i]=S[i];
    
    fo(j,1,m-1){
        sort(arr(a,0,n), [&] (const int &x, const int &y){
            if(f[x][j-1]!=f[y][j-1])return f[x][j-1]<f[y][j-1];
            return w[x]<w[y];
        });
        
        xd=0;
        fo(h,0,n-1){
            ll i=a[h];
            f[i][j]=max(xd, f[i][j-1]+w[i]*(s[j]-s[j-1]));
            xd=f[i][j];
        }
    }
 
    fo(j,1,m-1){
        sort(arr(a,0,n), [&] (const int &x, const int &y){
            if(f[x][j-1]!=f[y][j-1])return f[x][j-1]<f[y][j-1];
            return w[x]<w[y];
        });
        fo(h,0,n-1){
            ll i=a[h];
            g[j][h]=f[i][j];
            if(h)g[j][h]=max(g[j][h], g[j][h-1]);
        }
        
        fo(i,0,n-1)b[i][j]=a[i];
    }
    return;
}
 
ll arrival_time(long long Y) {
    ans=Y;
    
    fo(j,1,m-1){
        l=0, r=n-1, zd=-1;
        while (l <= r) {
            xd=(l+r)/2;
            if (ans>f[b[xd][j]][j-1])zd=xd,l=xd+1;
            else r=xd-1;
        }
        
        xd=ans+w[n]*(s[j]-s[j-1]);
        if(zd!=-1)xd=max(xd, g[j][zd]);
        ans=xd;
        
        //cout<<ans<<" ";
  }
  return ans;
}

Compilation message (stderr)

overtaking.cpp: In function 'void init(int, int, std::vector<long long int>, std::vector<int>, int, int, std::vector<int>)':
overtaking.cpp:14:19: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   14 | #define fo(x,y,z) for(ll x=y; x<=z; x++)
      |                   ^~~
overtaking.cpp:29:5: note: in expansion of macro 'fo'
   29 |     fo(i,0,n-1)a[i]=i, f[i][0]=t[i]=T[i], w[i]=W[i];w[n]=X;
      |     ^~
overtaking.cpp:29:53: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   29 |     fo(i,0,n-1)a[i]=i, f[i][0]=t[i]=T[i], w[i]=W[i];w[n]=X;
      |                                                     ^

• Subtask 0: 0 / 0
• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 20 / 20
• Subtask 4: 26 / 26
• Subtask 5: 0 / 35