Submission #1286661

#	Time	Username	Problem	Language	Result	Execution time	Memory
1286661		MMihalev	Overtaking (IOI23_overtaking)	C++20	0 / 100	1 ms	340 KiB

overtaking

#include<iostream>
#include<algorithm>
#include<vector>
#include "overtaking.h"
using namespace std;
struct line
{
    long long m,c;
    long long calc(long long x){return m*x+c;}
    long double intersect(line l){return (long double)(c-l.c)/(l.m-m);}
};
vector<line>lines;
vector<int>s;
long long l,n,m,x;
void init(int L, int N, std::vector<long long> T, std::vector<int> W, int X, int M, std::vector<int> S)
{
    l=L;
    n=N;
    x=X;
    m=M;
    s=S;
    vector<pair<int,int>>order;
    for(int i=0;i<n;i++)
    {
        order.push_back({W[i],i});
    }
    sort(order.begin(),order.end());
    for(int i=0;i<n;i++)
    {
        int id=order[i].second;
        line l;
        l.m=W[id];
        l.c=T[id];
        lines.push_back(l);
    }
}

long long arrival_time(long long Y)
{
    line cur;
    cur.m=x;
    cur.c=Y;
    if(cur.m>=lines[0].m)
    {
        return cur.calc(l);
    }

    auto point=cur.intersect(lines[0]);

    for(int j=0;j<m;j++)
    {
        if(s[j]>=point)
        {
            return cur.calc(l);
        }
        if(s[j]>point)
        {
            long long dist=lines[0].calc(s[j]);
            return (l-dist)*x;
        }
    }
}

Compilation message (stderr)

overtaking.cpp: In function 'long long int arrival_time(long long int)':
overtaking.cpp:62:1: warning: control reaches end of non-void function [-Wreturn-type]
   62 | }
      | ^

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