제출 #1310263

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1310263		HoriaHaivas	선물상자 (IOI15_boxes)	C++20	컴파일 에러	0 ms	0 KiB

boxes

#include<bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#pragma GCC optimize("Ofast")
#define int long long

using namespace std;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int range_rng(int l, int r)
{
    return uniform_int_distribution<int>(l,r)(rng);
}

int pos[10000005];
int cw[10000005];
int ccw[10000005];

int delivery(int N, int K, int L, int positions[])
{
    int n,k,l,i,d,ans;
    n=N;
    k=K;
    l=L;
    for (i=0;i<n;i++)
    {
         if (i<=k)
             cw[i]=positions[i]*2;
         else
             cw[i]=cw[i-k]+positions[i]*2;
    }
    for (i=n-1;i>=0;i--)
    {
         d=(l-1)-positions[i]+1;
         if ((n-1)-i+1<=k)
             ccw[i]=d*2;
         else
             ccw[i]=ccw[i+k]+d*2;
    }
    ans=1e18;
    for (i=0;i<n;i++)
    {
         ans=min(ans,cw[i]+ccw[i+1]);
    }
    for (i=0;i<n;i++)
    {
         if (i==0)
         ans=min(ans,l+ccw[i+k]);
         else if (i+k-1<n)
         ans=min(ans,cw[i-1]+l+ccw[i+k]);
         else
         ans=min(ans,cw[i-1]+l);
    }
    return ans;
}

signed main()
{
    /*
    ifstream fin("arbore.in");
    ofstream fout("arbore.out");
    */
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n,k,l,i;
    cin >> n >> k >> l;
    for (i=0;i<n;i++)
    {
         cin >> pos[i];
    }
    cout << delivery(n,k,l,pos);
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccSffJ8L.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/ccjb8f9s.o:boxes.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccSffJ8L.o: in function `main':
grader.c:(.text.startup+0x1e4): undefined reference to `delivery(int, int, int, int*)'
collect2: error: ld returned 1 exit status