제출 #434877

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
434877		jeqcho	선물상자 (IOI15_boxes)	C++17	컴파일 에러	0 ms	0 KiB

boxes

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

typedef long double ld;
typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pair<int,int>> vpi;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define rsz resize
#define sz(x) int(x.size())
#define all(x) begin(x), end(x)
#define fi first
#define se second

int const N=1e7+3;
vector<ll> p;
int n,k;


ll delivery(int n1, int K, ll L, int p1[]) {
	k=K;
	n=n1;
	p.rsz(n);
	ll L=L1;
	F0R(i,n)p[i]=p1[i];
	ll cur=0;
	int i=0;
	int j=n-1;
	ll ans=0;
	int cnt=k;
	while(i<=j)
	{
		if(cnt==0)
		{
			ans += min(cur,L-cur);
			cur=0;
			cnt=k;
		}
		ll dcw=p[i]-cur;
		if(dcw<0)dcw = L-cur+p[i];
		ll dccw=cur-p[j];
		if(dccw<0)dccw=cur+L-p[j];
		if(dcw<dccw)
		{
			ans+=dcw;
			cur=p[i];
			++i;
		}
		else
		{
			ans+=dccw;
			cur=p[j];
			--j;
		}
		--cnt;
	}
	ans+=min(L-cur,cur);
	return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp: In function 'll delivery(int, int, ll, int*)':
boxes.cpp:33:5: error: declaration of 'll L' shadows a parameter
   33 |  ll L=L1;
      |     ^
boxes.cpp:29:31: note: 'll L' previously declared here
   29 | ll delivery(int n1, int K, ll L, int p1[]) {
      |                            ~~~^
boxes.cpp:33:7: error: 'L1' was not declared in this scope; did you mean 'L'?
   33 |  ll L=L1;
      |       ^~
      |       L
boxes.cpp:29:31: warning: unused parameter 'L' [-Wunused-parameter]
   29 | ll delivery(int n1, int K, ll L, int p1[]) {
      |                            ~~~^