Submission #1180629

#	Time	Username	Problem	Language	Result	Execution time	Memory
1180629		souvenir_vayne	Knapsack (NOI18_knapsack)	C++20	Compilation error	0 ms	0 KiB

knapsack

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <chrono>
#define pb push_back
#define INF 0x3f3f3f3f
#define LINF 0x3f3f3f3f3f3f3f3f
#define endl '\n'
#define ll long long
#define f first
#define fin cin
#define fout cout
#define s second
#define FAST cin.tie(0), cout.tie(0), ios::sync_with_stdio(0)
#define debug(x) cerr << "DEBUG " << x << endl
#define debug2(x, y) cerr << "DEBUG " << x << " " << y << endl
#define debug3(x, y, z) cerr << "DEBUG " << x << " " << y << " " << z << endl
#define debug4(x, y, z, o) cerr << "DEBUG " << x << " " << y << " " << z << " " << o << endl
#define all(x) x.begin(), x.end()
#define left esquerda
#define lb lower_bound
#define right direita
using namespace std;
void setIO(string s) {
    ios_base::sync_with_stdio(0); cin.tie(0);
    freopen((s+".in").c_str(),"r",stdin);
    freopen((s+".out").c_str(),"w",stdout);
}
typedef pair<ll, ll> pii;
typedef vector<vector<char>> mat;
typedef pair<int, string> pis;
const ll mod = 1e9 + 7, MAXN = 2e5 + 5;
typedef vector<int> vi;
typedef pair<int, pair<int, int>> piii;

void solve() {
    int n, s;
    cin >> s >> n;
    vector<int> items[2001];
    for(int i = 0; i < n; i++) {
        int v, w, k;
        cin >> v >> w >> k;
        k = min(k, s/w);

        for(int j = 0; j < k; j++)
            items[w].push_back(v);
    }

    vector<pii> ri;
    for(int i = 1; i < 2001; i++) {
        sort(all(items[i]), greater<int>());
        for(int j = 0; j < min((int)items[i].size(), s/i); j++)
            ri.push_back({items[i][j], i});
    } 
   

    int dp[(int)ri.size() + 5][s + 5], ans = 0;
    memset(dp, 0, sizeof dp);
    for(int i = 0; i < ri.size(); i++) {
        for(int j = s; j >= 0; j--) {
            if(!i && j >= ri[i].s)
                dp[i][j] = ri[i].f;
            
            else if(i) {
                dp[i][j] = dp[i - 1][j];
                if(j >= ri[i].s)
                    dp[i][j] = max(dp[i][j], dp[i - 1][j - ri[i].s] + ri[i].f);
            }
            ans = max(ans, dp[i][j]);
        }
    }
    cout << ans << endl;
}

int32_t main() {
    int ct = 1;
    while(ct--)
        solve();
    return 0;
}

Compilation message (stderr)

knapsack.cpp: In function 'void solve()':
knapsack.cpp:66:35: error: no matching function for call to 'max(int&, long long int)'
   66 |                     dp[i][j] = max(dp[i][j], dp[i - 1][j - ri[i].s] + ri[i].f);
      |                                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:66:35: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   66 |                     dp[i][j] = max(dp[i][j], dp[i - 1][j - ri[i].s] + ri[i].f);
      |                                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:66:35: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   66 |                     dp[i][j] = max(dp[i][j], dp[i - 1][j - ri[i].s] + ri[i].f);
      |                                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:66:35: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   66 |                     dp[i][j] = max(dp[i][j], dp[i - 1][j - ri[i].s] + ri[i].f);
      |                                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:66:35: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   66 |                     dp[i][j] = max(dp[i][j], dp[i - 1][j - ri[i].s] + ri[i].f);
      |                                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
knapsack.cpp: In function 'void setIO(std::string)':
knapsack.cpp:25:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     freopen((s+".in").c_str(),"r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
knapsack.cpp:26:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |     freopen((s+".out").c_str(),"w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~