Submission #1210910

#	Time	Username	Problem	Language	Result	Execution time	Memory
1210910		ofoz	Rice Hub (IOI11_ricehub)	C++20	Compilation error	0 ms	0 KiB

ricehub

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

int besthub(int n, int m, int a[], long long b) {
    vector<long long> prfx(n);
    prfx[0] = a[0];
    for (long long i = 1; i < n; ++i) {
        prfx[i] = prfx[i - 1] + a[i];
    }

    auto getPrfx = [&](long long l, long long r) -> long long {
        if (l > r) return 0;
        long long left = (l == 0) ? 0 : prfx[l - 1];
        long long right = prfx[r];
        return right - left;
    };

    int res = 1;
    long long l = 0, r = 0;
    while (r < n) {
        long long mid = (l + r) / 2;
        long long s = getPrfx(l, r) - a[mid];
        long long s1 = getPrfx(l, mid - 1);
        long long s2 = getPrfx(mid + 1, r);
        long long d1 = mid - l;
        long long d2 = r - mid;
        long long score = s2 - 1LL * d2 * a[mid] + (1LL * d1 * a[mid] - s1);
        if (score <= b) {
            res = max(res, r - l + 1);
            ++r;
        } else {
            ++l;
        }
    }

    return res;
}

Compilation message (stderr)

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:29:22: error: no matching function for call to 'max(int&, long long int)'
   29 |             res = max(res, r - l + 1);
      |                   ~~~^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from ricehub.cpp:1:
/usr/include/c++/11/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++/11/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
ricehub.cpp:29:22: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   29 |             res = max(res, r - l + 1);
      |                   ~~~^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from ricehub.cpp:1:
/usr/include/c++/11/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++/11/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
ricehub.cpp:29:22: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   29 |             res = max(res, r - l + 1);
      |                   ~~~^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from ricehub.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3461:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3461 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3461:5: note:   template argument deduction/substitution failed:
ricehub.cpp:29:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   29 |             res = max(res, r - l + 1);
      |                   ~~~^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from ricehub.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3467:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3467 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3467:5: note:   template argument deduction/substitution failed:
ricehub.cpp:29:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   29 |             res = max(res, r - l + 1);
      |                   ~~~^~~~~~~~~~~~~~~~