| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 922064 | cthbst | Let's Win the Election (JOI22_ho_t3) | C++14 | Compilation error | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
include <algorithm>
#include <iomanip>
#include <iostream>
#include <utility>
#include <vector>
using namespace std;
const int maxn = 505;
const int INF = 1e9;
int n, k;
double a[maxn];
double b[maxn];
pair<double, double> p[maxn];
double dp[maxn][maxn];
double f(int s, int cnt) {
vector<double> v;
for (int i = s; i < n; i++) {
v.push_back(a[i]);
}
if (v.size() < cnt) return INF;
sort(v.begin(), v.end());
double rtn = 0;
for (int i = 0; i < cnt; i++) {
rtn += v[i];
}
return rtn;
}
double myDP(int x) {
dp[0][0] = a[0] / (x + 1);
dp[0][1] = b[0] / 1;
for (int j = 2; j <= x; j++) dp[0][j] = INF;
for (int i = 1; i < n; i++) {
dp[i][0] = dp[i - 1][0] + a[i] / (x + 1);
for (int j = 1; j <= x; j++) {
if (j > i + 1) {
dp[i][j] = INF;
} else {
double A = dp[i - 1][j] + a[i] / (x + 1);
double B = dp[i - 1][j - 1] + b[i] / j;
dp[i][j] = min(A, B);
}
}
}
double rtn = INF;
for (int i = 0; i < n; i++) {
rtn = min(rtn, dp[i][x] + f(i + 1, k - x) / (x + 1));
}
return rtn;
}
int main() {
ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
cin >> n >> k;
for (int i = 0; i < n; i++) {
cin >> a[i] >> b[i];
if (b[i] == -1) b[i] = INF;
p[i] = {b[i], a[i]};
}
sort(p, p + n);
for (int i = 0; i < n; i++) {
b[i] = p[i].first;
a[i] = p[i].second;
}
double an = INF;
for (int x = 0; x <= k; x++) {
an = min(an, myDP(x));
}
cout << fixed << setprecision(15) << an << '\n';
return 0;
}
Compilation message (stderr)
Main.cpp:1:1: error: 'include' does not name a type
1 | include <algorithm>
| ^~~~~~~
In file included from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/include/c++/10/bits/postypes.h:98:11: error: 'ptrdiff_t' does not name a type
98 | typedef ptrdiff_t streamsize; // Signed integral type
| ^~~~~~~~~
/usr/include/c++/10/bits/postypes.h:41:1: note: 'ptrdiff_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
40 | #include <cwchar> // For mbstate_t
+++ |+#include <cstddef>
41 |
In file included from /usr/include/c++/10/bits/stl_algobase.h:62,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/ext/type_traits.h:162:35: error: 'bool __gnu_cxx::__is_null_pointer' redeclared as different kind of entity
162 | __is_null_pointer(std::nullptr_t)
| ^
/usr/include/c++/10/ext/type_traits.h:157:5: note: previous declaration 'template<class _Type> bool __gnu_cxx::__is_null_pointer(_Type)'
157 | __is_null_pointer(_Type)
| ^~~~~~~~~~~~~~~~~
/usr/include/c++/10/ext/type_traits.h:162:26: error: 'nullptr_t' is not a member of 'std'
162 | __is_null_pointer(std::nullptr_t)
| ^~~~~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:402:31: error: 'std::size_t' has not been declared
402 | template<typename _Tp, std::size_t _Size>
| ^~~~~~
/usr/include/c++/10/type_traits:403:25: error: '_Size' was not declared in this scope
403 | struct is_array<_Tp[_Size]>
| ^~~~~
/usr/include/c++/10/type_traits:403:31: error: template argument 1 is invalid
403 | struct is_array<_Tp[_Size]>
| ^
/usr/include/c++/10/type_traits:508:42: error: 'nullptr_t' is not a member of 'std'
508 | struct __is_null_pointer_helper<std::nullptr_t>
| ^~~~~~~~~
/usr/include/c++/10/type_traits:508:42: error: 'nullptr_t' is not a member of 'std'
/usr/include/c++/10/type_traits:508:51: error: template argument 1 is invalid
508 | struct __is_null_pointer_helper<std::nullptr_t>
| ^
/usr/include/c++/10/type_traits:1351:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1351 | : public integral_constant<std::size_t, alignof(_Tp)>
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1351:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1351 | : public integral_constant<std::size_t, alignof(_Tp)>
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1351:57: error: template argument 1 is invalid
1351 | : public integral_constant<std::size_t, alignof(_Tp)>
| ^
/usr/include/c++/10/type_traits:1351:57: note: invalid template non-type parameter
/usr/include/c++/10/type_traits:1360:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1360 | : public integral_constant<std::size_t, 0> { };
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1360:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1360 | : public integral_constant<std::size_t, 0> { };
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1360:46: error: template argument 1 is invalid
1360 | : public integral_constant<std::size_t, 0> { };
| ^
/usr/include/c++/10/type_traits:1360:46: note: invalid template non-type parameter
/usr/include/c++/10/type_traits:1362:31: error: 'std::size_t' has not been declared
1362 | template<typename _Tp, std::size_t _Size>
| ^~~~~~
/usr/include/c++/10/type_traits:1363:21: error: '_Size' was not declared in this scope
1363 | struct rank<_Tp[_Size]>
| ^~~~~
/usr/include/c++/10/type_traits:1363:27: error: template argument 1 is invalid
1363 | struct rank<_Tp[_Size]>
| ^
/usr/include/c++/10/type_traits:1364:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1364 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1364:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1364 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1364:65: error: template argument 1 is invalid
1364 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^
/usr/include/c++/10/type_traits:1364:65: note: invalid template non-type parameter
/usr/include/c++/10/type_traits:1368:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1368 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1368:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1368 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1368:65: error: template argument 1 is invalid
1368 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^
/usr/include/c++/10/type_traits:1368:65: note: invalid template non-type parameter
/usr/include/c++/10/type_traits:1373:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1373 | : public integral_constant<std::size_t, 0> { };
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1373:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1373 | : public integral_constant<std::size_t, 0> { };
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1373:46: error: template argument 1 is invalid
1373 | : public integral_constant<std::size_t, 0> { };
| ^
/usr/include/c++/10/type_traits:1373:46: note: invalid template non-type parameter
/usr/include/c++/10/type_traits:1375:47: error: 'std::size_t' has not been declared
1375 | template<typename _Tp, unsigned _Uint, std::size_t _Size>
| ^~~~~~
/usr/include/c++/10/type_traits:1376:23: error: '_Size' was not declared in this scope
1376 | struct extent<_Tp[_Size], _Uint>
| ^~~~~
/usr/include/c++/10/type_traits:1376:36: error: template argument 1 is invalid
1376 | struct extent<_Tp[_Size], _Uint>
| ^
/usr/include/c++/10/type_traits:1377:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1377 | : public integral_constant<std::size_t,
| ^~~~~~
In file included from /usr/include/wchar.h:35,
from /usr/include/c++/10/cwchar:44,
from /usr/include/c++/10/bits/postypes.h:40,
from /usr/include/c++/10/iosfwd:40,
from /usr/include/c++/10/iomanip:39,
from Main.cpp:2:
/usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:209:23: note: 'size_t' declared here
209 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/string:40,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/iomanip:40,
from Main.cpp:2:
/usr/include/c++/10/type_traits:1377:37: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
1377 | : public integral_constant<std::size_t,
|