Submission #1331327

#	Time	Username	Problem	Language	Result	Execution time	Memory
1331327		back	Race (IOI11_race)	C++20	Compilation error	0 ms	0 KiB

race

#include "race.h"
#include<bits/stdc++.h>
#define int long long
#define pii pair<int, int>
#define se second
#define fi first

using namespace std;
const int N1 = 2e5 + 5;
const int MAXN = LLONG_MAX;
const int mod = 1e9 + 7;
int n, k;
int sum[N1], ds[N1];
int ans=MAXN;
pii a[N1];
map <int, int> dp[N1];
vector <pii> adj;
//int K, H[N1][2], L[N1], N;

void dfs(int u, int p) {
    dp[u][sum[u]]=ds[u];
    
    for (auto &i: adj[u]) {
        if (i.fi==p) continue;
        sum[i.fi]=sum[u]+i.se;
        ds[i.fi]=ds[u]+1;
        int v;
        dfs(v=i.fi, u);
    
        if (dp[u].size() < dp[v].size()) swap(dp[u], dp[v]);

        for (auto &j: dp[v]) {
            if (dp[u].find(k+sum[u]*2-j.fi)!=end(dp[u])) {
                ans=min(ans, dp[u][k+sum[u]*2-j.fi]+j.se-ds[u]*2);
            }
        }
        for (auto &j: dp[v]) {
            if (dp[u].find(j.fi)==end(dp[u])) {
                dp[u][j.fi]=j.se;
            }
            else dp[u][j.fi]=min(dp[u][j.fi], j.se);
        }
        dp[v].clear();
    }

}

int best_path(int N, int K, int H[][2], int L[]) {
    n=N;
    adj.resize(n);
    
    for (int i=0; i<n-1; ++i) {
        adj[H[i][0]].push_back({H[i][1], L[i]});
        adj[H[i][1]].push_back({H[i][0], L[i]});
    }
    k=K;
    dfs(0, 0);
    if (ans==MAXN) return -1;
    else return ans;
}

/*signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    cin >> N >> K;
    for (int i=0; i<N-1; ++i) {
        cin >> H[i][0] >> H[i][1] >> L[i];
    }
    cout << best_path(N, K, H, L);
}*/

Compilation message (stderr)

race.cpp: In function 'void dfs(long long int, long long int)':
race.cpp:23:24: error: no matching function for call to 'begin(std::pair<long long int, long long int>&)'
   23 |     for (auto &i: adj[u]) {
      |                        ^
In file included from /usr/include/c++/13/bits/algorithmfwd.h:39,
                 from /usr/include/c++/13/bits/stl_algo.h:59,
                 from /usr/include/c++/13/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:51,
                 from race.cpp:2:
/usr/include/c++/13/initializer_list:88:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::begin(initializer_list<_Tp>)'
   88 |     begin(initializer_list<_Tp> __ils) noexcept
      |     ^~~~~
/usr/include/c++/13/initializer_list:88:5: note:   template argument deduction/substitution failed:
race.cpp:23:24: note:   'std::pair<long long int, long long int>' is not derived from 'std::initializer_list<_Tp>'
   23 |     for (auto &i: adj[u]) {
      |                        ^
In file included from /usr/include/c++/13/string:53,
                 from /usr/include/c++/13/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:52:
/usr/include/c++/13/bits/range_access.h:52:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&)'
   52 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/13/bits/range_access.h:52:5: note:   template argument deduction/substitution failed:
/usr/include/c++/13/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&) [with _Container = std::pair<long long int, long long int>]':
race.cpp:23:24:   required from here
/usr/include/c++/13/bits/range_access.h:52:50: error: 'struct std::pair<long long int, long long int>' has no member named 'begin'
   52 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |                                           ~~~~~~~^~~~~
/usr/include/c++/13/bits/range_access.h:63:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&)'
   63 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/13/bits/range_access.h:63:5: note:   template argument deduction/substitution failed:
/usr/include/c++/13/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&) [with _Container = std::pair<long long int, long long int>]':
race.cpp:23:24:   required from here
/usr/include/c++/13/bits/range_access.h:63:56: error: 'const struct std::pair<long long int, long long int>' has no member named 'begin'
   63 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |                                                 ~~~~~~~^~~~~
/usr/include/c++/13/bits/range_access.h:95:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::begin(_Tp (&)[_Nm])'
   95 |     begin(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~~~
/usr/include/c++/13/bits/range_access.h:95:5: note:   template argument deduction/substitution failed:
race.cpp:23:24: note:   mismatched types '_Tp [_Nm]' and 'std::pair<long long int, long long int>'
   23 |     for (auto &i: adj[u]) {
      |                        ^
In file included from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:166:
/usr/include/c++/13/valarray:1227:5: note: candidate: 'template<class _Tp> _Tp* std::begin(valarray<_Tp>&)'
 1227 |     begin(valarray<_Tp>& __va) noexcept
      |     ^~~~~
/usr/include/c++/13/valarray:1227:5: note:   template argument deduction/substitution failed:
race.cpp:23:24: note:   'std::pair<long long int, long long int>' is not derived from 'std::valarray<_Tp>'
   23 |     for (auto &i: adj[u]) {
      |                        ^
/usr/include/c++/13/valarray:1238:5: note: candidate: 'template<class _Tp> const _Tp* std::begin(const valarray<_Tp>&)'
 1238 |     begin(const valarray<_Tp>& __va) noexcept
      |     ^~~~~
/usr/include/c++/13/valarray:1238:5: note:   template argument deduction/substitution failed:
race.cpp:23:24: note:   'std::pair<long long int, long long int>' is not derived from 'const std::valarray<_Tp>'
   23 |     for (auto &i: adj[u]) {
      |                        ^
race.cpp:23:24: error: no matching function for call to 'end(std::pair<long long int, long long int>&)'
/usr/include/c++/13/initializer_list:99:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::end(initializer_list<_Tp>)'
   99 |     end(initializer_list<_Tp> __ils) noexcept
      |     ^~~
/usr/include/c++/13/initializer_list:99:5: note:   template argument deduction/substitution failed:
race.cpp:23:24: note:   'std::pair<long long int, long long int>' is not derived from 'std::initializer_list<_Tp>'
   23 |     for (auto &i: adj[u]) {
      |                        ^
/usr/include/c++/13/bits/range_access.h:74:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
   74 |     end(_Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/13/bits/range_access.h:74:5: note:   template argument deduction/substitution failed:
/usr/include/c++/13/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&) [with _Container = std::pair<long long int, long long int>]':
race.cpp:23:24:   required from here
/usr/include/c++/13/bits/range_access.h:74:48: error: 'struct std::pair<long long int, long long int>' has no member named 'end'
   74 |     end(_Container& __cont) -> decltype(__cont.end())
      |                                         ~~~~~~~^~~
/usr/include/c++/13/bits/range_access.h:85:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
   85 |     end(const _Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/13/bits/range_access.h:85:5: note:   template argument deduction/substitution failed:
/usr/include/c++/13/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&) [with _Container = std::pair<long long int, long long int>]':
race.cpp:23:24:   required from here
/usr/include/c++/13/bits/range_access.h:85:54: error: 'const struct std::pair<long long int, long long int>' has no member named 'end'
   85 |     end(const _Container& __cont) -> decltype(__cont.end())
      |                                               ~~~~~~~^~~
/usr/include/c++/13/bits/range_access.h:106:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
  106 |     end(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~
/usr/include/c++/13/bits/range_access.h:106:5: note:   template argument deduction/substitution failed:
race.cpp:23:24: note:   mismatched types '_Tp [_Nm]' and 'std::pair<long long int, long long int>'
   23 |     for (auto &i: adj[u]) {
      |                        ^
/usr/include/c++/13/valarray:1249:5: note: candidate: 'template<class _Tp> _Tp* std::end(valarray<_Tp>&)'
 1249 |     end(valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/13/valarray:1249:5: note:   template argument deduction/substitution failed:
race.cpp:23:24: note:   'std::pair<long long int, long long int>' is not derived from 'std::valarray<_Tp>'
   23 |     for (auto &i: adj[u]) {
      |                        ^
/usr/include/c++/13/valarray:1265:5: note: candidate: 'template<class _Tp> const _Tp* std::end(const valarray<_Tp>&)'
 1265 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/13/valarray:1265:5: note:   template argument deduction/substitution failed:
race.cpp:23:24: note:   'std::pair<long long int, long long int>' is not derived from 'const std::valarray<_Tp>'
   23 |     for (auto &i: adj[u]) {
      |                        ^
race.cpp: In function 'long long int best_path(long long int, long long int, long long int (*)[2], long long int*)':
race.cpp:53:22: error: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'struct std::pair<long long int, long long int>'} has no member named 'push_back'
   53 |         adj[H[i][0]].push_back({H[i][1], L[i]});
      |                      ^~~~~~~~~
race.cpp:54:22: error: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'struct std::pair<long long int, long long int>'} has no member named 'push_back'
   54 |         adj[H[i][1]].push_back({H[i][0], L[i]});
      |                      ^~~~~~~~~