Submission #1195881

#	Time	Username	Problem	Language	Result	Execution time	Memory
1195881		osheesh	Knapsack (NOI18_knapsack)	C++20	Compilation error	0 ms	0 KiB

knapsack

#include <bits/stdc++.h>
#define en '\n'
#define sp ' '
#define ll long long
#define pii pair<int, int>
#define piii pair<int, pair<int, int>>
#define maxx(a,b) a=max(a,b)
#define minn(a,b) a=min(a,b)
#define st first
#define nd second
using namespace std;

const int N=1e5+5;
int dp[2005],v[N],w[N],k[N];

int main(){ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int wei,n; cin>>wei>>n;
    for(int i=1;i<=n;i++) cin>>v[i]>>w[i]>>k[i];
    for(int i=1;i<=n;i++){
        int tmp=k[i];
        for(int j=1;tmp>0;j<<=1){
            int cnt=min(j,tmp);
            ll nv=v[i]*cnt,nw=w[i]*cnt;
            for(int curr=wei;curr>=nw;curr--) maxx(dp[curr],dp[curr-nw]+nv);
            tmp-=cnt;
        }
    }
    cout<<dp[wei];
    return 0;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:7:24: error: no matching function for call to 'max(int&, long long int)'
    7 | #define maxx(a,b) a=max(a,b)
      |                     ~~~^~~~~
knapsack.cpp:24:47: note: in expansion of macro 'maxx'
   24 |             for(int curr=wei;curr>=nw;curr--) maxx(dp[curr],dp[curr-nw]+nv);
      |                                               ^~~~
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 knapsack.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:
knapsack.cpp:7:24: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
    7 | #define maxx(a,b) a=max(a,b)
      |                     ~~~^~~~~
knapsack.cpp:24:47: note: in expansion of macro 'maxx'
   24 |             for(int curr=wei;curr>=nw;curr--) maxx(dp[curr],dp[curr-nw]+nv);
      |                                               ^~~~
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 knapsack.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:
knapsack.cpp:7:24: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
    7 | #define maxx(a,b) a=max(a,b)
      |                     ~~~^~~~~
knapsack.cpp:24:47: note: in expansion of macro 'maxx'
   24 |             for(int curr=wei;curr>=nw;curr--) maxx(dp[curr],dp[curr-nw]+nv);
      |                                               ^~~~
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 knapsack.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:
knapsack.cpp:7:24: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
    7 | #define maxx(a,b) a=max(a,b)
      |                     ~~~^~~~~
knapsack.cpp:24:47: note: in expansion of macro 'maxx'
   24 |             for(int curr=wei;curr>=nw;curr--) maxx(dp[curr],dp[curr-nw]+nv);
      |                                               ^~~~
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 knapsack.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:
knapsack.cpp:7:24: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
    7 | #define maxx(a,b) a=max(a,b)
      |                     ~~~^~~~~
knapsack.cpp:24:47: note: in expansion of macro 'maxx'
   24 |             for(int curr=wei;curr>=nw;curr--) maxx(dp[curr],dp[curr-nw]+nv);
      |                                               ^~~~