#include <iostream> #include <vector> #include <cmath> using namespace std; const int MAXN = 5e5 + 7; vector<int> graf[MAXN]; int dp[MAXN][2][2]; //zmiana parent, koncze w v bool color[MAXN]; void dfs(int v, int p) { if (v != p && graf[v].size() == 1) { if (color[v]) { dp[v][0][0] = 0; dp[v][0][1] = 0; dp[v][1][1] = 0; return; } dp[v][0][0] = 1; dp[v][0][1] = 1; dp[v][1][1] = 3; return; } int xorr = (graf[v].size()) % 2, optsuma = graf[v].size() + (v == p); if (v == p) xorr ^= 1; xorr ^= color[v]; for (int s : graf[v]) { if (s != p) { dfs(s, v); if (dp[s][0][1] > dp[s][1][1]) xorr ^= 1; optsuma += min(dp[s][0][1], dp[s][1][1]); } } dp[v][0][0] = 1e9; dp[v][0][1] = 1e9; dp[v][1][1] = 1e9; for (int s : graf[v]) { if (s == p) continue; int oh = dp[s][0][1] > dp[s][1][1]; int optsuma2 = optsuma - min(dp[s][0][1], dp[s][1][1]); //cout << "O: " << v << ' ' << ' ' << min(dp[s][0][1], dp[s][1][1]) << ' ' << optsuma << ' ' << optsuma2 << '\n'; dp[v][0][0] = min(dp[v][0][0], optsuma2 + dp[s][0][0] + (xorr ^ oh) * (int)1e7 - 1); } if (!xorr) dp[v][1][1] = optsuma + 3; else dp[v][0][1] = optsuma; dp[v][0][0] = min(dp[v][0][0], dp[v][0][1]); //cout << v << ": " << dp[v][0][0] << ' ' << dp[v][0][1] << ' ' << dp[v][1][1] << ' ' << optsuma << ' ' << xorr << '\n'; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n, a, b; cin >> n; char c; for (int i = 1; i <= n; i++) { cin >> c; color[i] = c - '0'; } for (int i = 0; i < n - 1; i++) { cin >> a >> b; graf[a].push_back(b); graf[b].push_back(a); } int ans = 1e9; for (int i = 1; i <= n; i++) { dfs(i, i); // cout << dp[i][0][0] << ' ' << dp[i][0][1] << ' ' << dp[i][1][1] << '\n'; ans = min({ans, dp[i][0][0], dp[i][0][1], dp[i][1][1]}); } cout << ans << '\n'; return 0; }

svjetlo.cpp: In function 'int main()':
svjetlo.cpp:84:18: error: no matching function for call to 'min(<brace-enclosed initializer list>)'
   84 |         ans = min({ans, dp[i][0][0], dp[i][0][1], dp[i][1][1]});
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/string:51,
                 from /usr/include/c++/13/bits/locale_classes.h:40,
                 from /usr/include/c++/13/bits/ios_base.h:41,
                 from /usr/include/c++/13/ios:44,
                 from /usr/include/c++/13/ostream:40,
                 from /usr/include/c++/13/iostream:41,
                 from svjetlo.cpp:1:
/usr/include/c++/13/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
svjetlo.cpp:84:18: note:   candidate expects 2 arguments, 1 provided
   84 |         ans = min({ans, dp[i][0][0], dp[i][0][1], dp[i][1][1]});
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/13/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:281:5: note:   template argument deduction/substitution failed:
svjetlo.cpp:84:18: note:   candidate expects 3 arguments, 1 provided
   84 |         ans = min({ans, dp[i][0][0], dp[i][0][1], dp[i][1][1]});
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~