제출 #424764

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
424764		ollel	선물상자 (IOI15_boxes)	C++17	컴파일 에러	0 ms	0 KiB

boxes

#include <bits/stdc++.h>
#include <iostream>
#include "boxes.h"
using namespace std;

#define rep(i,a,b) for(int i = a; i < b; i++)
#define pb push_back
#define lso(x) x&(-x)

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;

int n, k, l;
vi p;
vi pos;

ll min(ll a, int b) {return min(a, (ll)b);}

ll kone() {
  ll ans = 0;
  rep(i,0,l) {
    ans += p[i]*2*min(i, l - i);
  }
  return ans;
}

ll kn() {
  ll ans = l;
  rep(i,0,n - 1) {
    ans = min(ans, 2*pos[i] + 2*(l - pos[i + 1]));
  }
  return ans;
}

ll n10() {
  return 0;
}

ll delivery(int N, int K, int L, vi positions) {
  n = N; k = K; l = K;
  p.resize(l);
  pos.resize(n); rep(i,0,n) pos[i] = positions[i];
  rep(i,0,n) p[positions[i]]++;
  if (k == 1) return kone();
  else if (k == n) return kn();
  else if (n <= 10) return n10();
}

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp: In function 'll delivery(int, int, int, vi)':
boxes.cpp:40:31: warning: unused parameter 'L' [-Wunused-parameter]
   40 | ll delivery(int N, int K, int L, vi positions) {
      |                           ~~~~^
boxes.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
   48 | }
      | ^
/usr/bin/ld: /tmp/cc0VwPMf.o: in function `main':
grader.c:(.text.startup+0x1ef): undefined reference to `delivery(int, int, int, int*)'
collect2: error: ld returned 1 exit status