제출 #1274342

#제출 시각아이디문제언어결과실행 시간메모리
1274342kiteyuKnapsack (NOI18_knapsack)C++20
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h> using namespace std; using ll=long long; const int N=1e5; const int M=2e6; int s,n,n1=0; struct node{ int v; int w; int k; }a[N+5],b[M+5]; int dp[2005]; int main(){ ios::sync_with_stdio(0);cin.tie(0);cout.tie(0); cin>>s>>n; for(int i=1;i<=n;++i){ cin>>a[i].v>>a[i].w>>a[i].k; a[i].k=min(a[i].k,s/a[i].w); int fs = 0; for(int j=10;j>=0;--j) if(((a[i].k >> j)&1)){ fs=j; break; } for(int j=0;j<fs;++j){ b[++n1]={a[i].v,a[i].w,(1<<j)}; a[i].k-=(1<<j); } if(a[i].k) b[++n1]=a[i]; } // // for(int i=1;i<=n1;++i) // cout<<b[i].v<<' '<<b[i].w<<' '<<b[i].k<<'\n'; for(int i=1;i<=n1;++i){ int W=b[i].w*b[i].k; int val=b[i].k*b[i].v; // cout<<W<<' '<<val<<'\n'; for(int j=s-W;j>=0;--j){ // cout<<j<<','<<dp[i]+val<<'\n'; dp[j+W]=max(dp[j+W],dp[j]+val); } // for(int j=0;j<=s;++j) cout<<dp[j]<<' '; // cout<<'\n'; } ll ans=0; for(int i=0;i<=s;++i) ans=max(ans,dp[i]); cout<<ans; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

knapsack.cpp: In function 'int main()':
knapsack.cpp:50:16: error: no matching function for call to 'max(ll&, int&)'
   50 |         ans=max(ans,dp[i]);
      |             ~~~^~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:51,
                 from knapsack.cpp:1:
/usr/include/c++/13/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
knapsack.cpp:50:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   50 |         ans=max(ans,dp[i]);
      |             ~~~^~~~~~~~~~~
/usr/include/c++/13/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:303:5: note:   template argument deduction/substitution failed:
knapsack.cpp:50:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   50 |         ans=max(ans,dp[i]);
      |             ~~~^~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61:
/usr/include/c++/13/bits/stl_algo.h:5795:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5795 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5795:5: note:   template argument deduction/substitution failed:
knapsack.cpp:50:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   50 |         ans=max(ans,dp[i]);
      |             ~~~^~~~~~~~~~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5805 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note:   template argument deduction/substitution failed:
knapsack.cpp:50:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   50 |         ans=max(ans,dp[i]);
      |             ~~~^~~~~~~~~~~