Submission #791998

#	Time	Username	Problem	Language	Result	Execution time	Memory
791998		Josia	Boxes with souvenirs (IOI15_boxes)	C++17	Compilation error	0 ms	0 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
 
 
#define int int64_t
 
 
long long delivery(signed N, signed K, signed L, signed p[]) {
 
    deque<int> left, right;
 
    for (int i = 0; i<N; i++) {
        if (p[i] <= L/2) left.push_back(p[i]);
        else right.push_back(L-p[i]);
    }
 
    sort(left.begin(), left.end());
    sort(right.begin(), right.end());

    int res = 0;

    while (left.size() >= K) {
        int curr = 0;
        for (int i = 0; i<K; i++) {
            curr = left[0];
            left.pop_front();
        }
        res += curr*2;
    }
    while (right.size() >= K) {
        int curr = 0;
        for (int i = 0; i<K; i++) {
            curr = left[0];
            left.pop_front();
        }
        res += curr*2;
    }

    vector<int> elems;

    for (int i: left) elems.push_back(i);

    for (int i: right) elems.push_back(-p[i]+L);


    int biggestGap = 0;

    for (int i = max(0ll, (int)elems.size()-K-1); i<max((int)K, (int)elems.size()-1); i++) {
        biggestGap = max(biggestGap, elems[i+1]-elems[i]);
    }

    int res1 = res + (L-biggestGap)*2;

    int res2 = 1e18;
    if (elems.size() <= K) res2 = res+L;

    int res3 = 1e18;
    int res4 = 1e18;

    if (elems.size() > K) {
        res3 = res + L + (L-elems[K])*2;
        res4 = res + L + elems[elems.size()-K-1]*2;
    }

    return min({res1,res2,res3,res4});
 
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:23:24: warning: comparison of integer expressions of different signedness: 'std::deque<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   23 |     while (left.size() >= K) {
      |            ~~~~~~~~~~~~^~~~
boxes.cpp:31:25: warning: comparison of integer expressions of different signedness: 'std::deque<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   31 |     while (right.size() >= K) {
      |            ~~~~~~~~~~~~~^~~~
boxes.cpp:49:48: error: no matching function for call to 'max(long long int, int64_t)'
   49 |     for (int i = max(0ll, (int)elems.size()-K-1); i<max((int)K, (int)elems.size()-1); i++) {
      |                                                ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from boxes.cpp:2:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
boxes.cpp:49:48: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int64_t' {aka 'long int'})
   49 |     for (int i = max(0ll, (int)elems.size()-K-1); i<max((int)K, (int)elems.size()-1); i++) {
      |                                                ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from boxes.cpp:2:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
boxes.cpp:49:48: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int64_t' {aka 'long int'})
   49 |     for (int i = max(0ll, (int)elems.size()-K-1); i<max((int)K, (int)elems.size()-1); i++) {
      |                                                ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from boxes.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
boxes.cpp:49:48: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   49 |     for (int i = max(0ll, (int)elems.size()-K-1); i<max((int)K, (int)elems.size()-1); i++) {
      |                                                ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from boxes.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed:
boxes.cpp:49:48: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   49 |     for (int i = max(0ll, (int)elems.size()-K-1); i<max((int)K, (int)elems.size()-1); i++) {
      |                                                ^
boxes.cpp:56:22: warning: comparison of integer expressions of different signedness: 'std::vector<long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   56 |     if (elems.size() <= K) res2 = res+L;
      |         ~~~~~~~~~~~~~^~~~
boxes.cpp:61:22: warning: comparison of integer expressions of different signedness: 'std::vector<long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   61 |     if (elems.size() > K) {
      |         ~~~~~~~~~~~~~^~~