Submission #552514

#	Time	Username	Problem	Language	Result	Execution time	Memory
552514		tht2005	Split the sequence (APIO14_sequence)	C++17	Compilation error	0 ms	0 KiB

sequence

#include <bits/stdc++.h>

using namespace std;

typedef long long LL;

const int N = 100001;
const int K = 201;
int n, kk, s[N], f[K][N];

int main() {
    scanf("%d %d", &n, &kk);
    for(int i = 1; i <= n; ++i) {
        int a;
        scanf("%d", &a);
        s[i] = s[i - 1] + a;
    }
    memset(f, 0, sizeof(f));
    for(int t = 1; t <= kk; ++t) {
        for(int i = t + 1; i <= n; ++i) {
            for(int j = i - 1; j >= t; --j) {
                f[t][i] = max(f[t][i], f[t - 1][j] + (LL)s[j] * (s[i] - s[j]));
            }
        }
    }
    printf("%lld\n", f[kk][n]);
    for(int i, j = n; kk--; ) {
        for(i = j; i--; ) {
            if(f[kk + 1][j] == f[kk][i] + (LL)s[i] * (s[j] - s[i])) {
                printf("%d ", i);
                j = i;
                break;
            }
        }
    }
    return 0;
}

Compilation message (stderr)

sequence.cpp: In function 'int main()':
sequence.cpp:22:78: error: no matching function for call to 'max(int&, LL)'
   22 |                 f[t][i] = max(f[t][i], f[t - 1][j] + (LL)s[j] * (s[i] - s[j]));
      |                                                                              ^
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 sequence.cpp:1:
/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:
sequence.cpp:22:78: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'LL' {aka 'long long int'})
   22 |                 f[t][i] = max(f[t][i], f[t - 1][j] + (LL)s[j] * (s[i] - s[j]));
      |                                                                              ^
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 sequence.cpp:1:
/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:
sequence.cpp:22:78: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'LL' {aka 'long long int'})
   22 |                 f[t][i] = max(f[t][i], f[t - 1][j] + (LL)s[j] * (s[i] - s[j]));
      |                                                                              ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from sequence.cpp:1:
/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:
sequence.cpp:22:78: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   22 |                 f[t][i] = max(f[t][i], f[t - 1][j] + (LL)s[j] * (s[i] - s[j]));
      |                                                                              ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from sequence.cpp:1:
/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:
sequence.cpp:22:78: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   22 |                 f[t][i] = max(f[t][i], f[t - 1][j] + (LL)s[j] * (s[i] - s[j]));
      |                                                                              ^
sequence.cpp:26:16: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=]
   26 |     printf("%lld\n", f[kk][n]);
      |             ~~~^     ~~~~~~~~
      |                |            |
      |                |            int
      |                long long int
      |             %d
sequence.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf("%d %d", &n, &kk);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
sequence.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf("%d", &a);
      |         ~~~~~^~~~~~~~~~