Submission #56040

#	Time	Username	Problem	Language	Result	Execution time	Memory
56040		KieranHorgan	Shortcut (IOI16_shortcut)	C++17	Compilation error	0 ms	0 KiB

shortcut

#include "shortcut.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define int long long

ll prefix[3005];
ll bestB[3005];
ll bestA[3005];

long long find_shortcut(signed n, vector<signed> l, vector<signed> d, signed c) {
	vector<int> L = {0,0};
	for(auto i: l) L.push_back(i);
	l=L;
	vector<int> D = {0};
	for(auto i: d) D.push_back(i);
	d=D;

	for(int i = 1; i <= n; i++)
		prefix[i] = prefix[i-1] + l[i];

	ll diam = 1ll<<50;

	vector<int> Db = D;
	for(int i = 1; i <= n; i++)
		Db[i] = max(Db[i], Db[i-1]+l[i]);
	vector<int> Da = D;
	for(int i = n-1; i >= 1; i--)
		Da[i] = max(Da[i], Da[i+1]+l[i+1]);

	// cerr << "  ";
	// for(int i = 2; i <= n; i++)
		// cerr << l[i] << "  ";
	// cerr << endl;
	// for(int i = 1; i <= n; i++) {
		// cerr << d[i] << "  ";
		// if(d[i]==0)
			// cerr << " ";
	// }
	// cerr << endl;
	// cerr << endl;
// 
	// for(int i = 1; i <= n; i++)
		// cerr << Db[i] << "  ";
	// cerr << endl;
	// cerr << endl;
	// for(int i = 1; i <= n; i++)
		// cerr << Da[i] << "  ";
	// cerr << endl;
	// cerr << endl;

	for(int i = 1; i <= n; i++)
		for(int j = i+1; j <= n; j++)
			bestB[j] = max(bestB[j], prefix[j]-prefix[i] + d[i] + d[j]),
			bestA[i] = max(bestA[i], prefix[j]-prefix[i] + d[i] + d[j]);

	// for(int i = 1; i <= n; i++)
		// cerr << bestB[i] << "  ";
	// cerr << endl;
	// for(int i = 1; i <= n; i++)
		// cerr << bestA[i] << "  ";
	// cerr << endl;
	// cerr << endl;

	for(ll ci = 1; ci <= n; ci++) {
		for(ll cj = ci+1; cj <= n; cj++) {
			d[ci] = Db[ci];
			d[cj] = Da[cj];

			ll currDiam = max(bestB[ci], bestA[cj]);
			for(ll i = ci; i <= cj; i++){
				for(ll j = i+1; j <= cj; j++) {
					currDiam = max(currDiam, min(prefix[j]-prefix[i] + d[i] + d[j], prefix[cj]-prefix[j] + c + prefix[i]-prefix[ci] + d[i] + d[j]));
				}
			}
 			diam = min(diam, currDiam);

			d[ci] = D[ci];
			d[cj] = D[cj];
		}
	}

    return diam;
}

Compilation message (stderr)

shortcut.cpp: In function 'long long int find_shortcut(int, std::vector<int>, std::vector<int>, int)':
shortcut.cpp:16:4: error: no match for 'operator=' (operand types are 'std::vector<int>' and 'std::vector<long long int>')
  l=L;
    ^
In file included from /usr/include/c++/7/vector:69:0,
                 from shortcut.h:2,
                 from shortcut.cpp:1:
/usr/include/c++/7/bits/vector.tcc:179:5: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]
     vector<_Tp, _Alloc>::
     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/vector.tcc:179:5: note:   no known conversion for argument 1 from 'std::vector<long long int>' to 'const std::vector<int>&'
In file included from /usr/include/c++/7/vector:64:0,
                 from shortcut.h:2,
                 from shortcut.cpp:1:
/usr/include/c++/7/bits/stl_vector.h:461:7: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]
       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
       ^~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:461:7: note:   no known conversion for argument 1 from 'std::vector<long long int>' to 'std::vector<int>&&'
/usr/include/c++/7/bits/stl_vector.h:482:7: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>]
       operator=(initializer_list<value_type> __l)
       ^~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:482:7: note:   no known conversion for argument 1 from 'std::vector<long long int>' to 'std::initializer_list<int>'
shortcut.cpp:19:4: error: no match for 'operator=' (operand types are 'std::vector<int>' and 'std::vector<long long int>')
  d=D;
    ^
In file included from /usr/include/c++/7/vector:69:0,
                 from shortcut.h:2,
                 from shortcut.cpp:1:
/usr/include/c++/7/bits/vector.tcc:179:5: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]
     vector<_Tp, _Alloc>::
     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/vector.tcc:179:5: note:   no known conversion for argument 1 from 'std::vector<long long int>' to 'const std::vector<int>&'
In file included from /usr/include/c++/7/vector:64:0,
                 from shortcut.h:2,
                 from shortcut.cpp:1:
/usr/include/c++/7/bits/stl_vector.h:461:7: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]
       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
       ^~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:461:7: note:   no known conversion for argument 1 from 'std::vector<long long int>' to 'std::vector<int>&&'
/usr/include/c++/7/bits/stl_vector.h:482:7: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>]
       operator=(initializer_list<value_type> __l)
       ^~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:482:7: note:   no known conversion for argument 1 from 'std::vector<long long int>' to 'std::initializer_list<int>'