제출 #674833

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
674833		benjaminkleyn	선물상자 (IOI15_boxes)	C++17	컴파일 에러	0 ms	0 KiB

이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.

boxes

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

ll delivery(int n, int k, int l, int p[]) 
{
    vector<ll> L, R;
    for (int i = 0; i < n; i++)
        else if (l - p[i] < p[i])
            L.push_back(l - p[i]);
        else
            R.push_back(p[i]);

    sort(L.rbegin(), L.rend());
    sort(R.rbegin(), R.rend());

    ll ans = 0;

    while (L.size() >= k)
    {
        for (int i = 0; i < k - 1; i++)
            L.pop_back();
        ans += 2 * L.back();
        L.pop_back();
    }
    while (R.size() >= k)
    {
        for (int i = 0; i < k - 1; i++)
            R.pop_back();
        ans += 2 * R.back();
        R.pop_back();
    }
    if (L.size() == 0)
        ans += 2 * R.back();
    else if (R.size() == 0)
        ans += 2 * L.back();
    else if (L.size() + R.size() <= k)
        ans += l;
    else
        ans += l + min(R[k - L.size()], L[k - R.size()]);

    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp: In function 'll delivery(int, int, int, int*)':
boxes.cpp:10:9: error: expected primary-expression before 'else'
   10 |         else if (l - p[i] < p[i])
      |         ^~~~
boxes.cpp:12:9: error: 'else' without a previous 'if'
   12 |         else
      |         ^~~~
boxes.cpp:13:27: error: 'i' was not declared in this scope
   13 |             R.push_back(p[i]);
      |                           ^
boxes.cpp:20:21: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     while (L.size() >= k)
      |            ~~~~~~~~~^~~~
boxes.cpp:22:18: warning: declaration of 'i' shadows a previous local [-Wshadow]
   22 |         for (int i = 0; i < k - 1; i++)
      |                  ^
boxes.cpp:13:27: note: shadowed declaration is here
   13 |             R.push_back(p[i]);
      |                           ^
boxes.cpp:27:21: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   27 |     while (R.size() >= k)
      |            ~~~~~~~~~^~~~
boxes.cpp:29:18: warning: declaration of 'i' shadows a previous local [-Wshadow]
   29 |         for (int i = 0; i < k - 1; i++)
      |                  ^
boxes.cpp:13:27: note: shadowed declaration is here
   13 |             R.push_back(p[i]);
      |                           ^
boxes.cpp:38:34: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   38 |     else if (L.size() + R.size() <= k)
      |              ~~~~~~~~~~~~~~~~~~~~^~~~