#include <bits/stdc++.h>
using ll = long long;
using sz = size_t;
using namespace std;
// make the code less c++-readable:
template<class T> using v = vector<T>;
template<class T> using vv = v<v<T>>;
using vi = v<int>; using vll = v<ll>; using vvi = vv<int>; using vvll = vv<ll>;
// hai loading utilities
#define $T template<class T>
#define $Ts template<class... T>
$T T Load() { T v; cin >> v; return v; }
$T auto Loads(int n) { v<T> v; v.reserve(n); while(n--) v.emplace_back(Load<T>()); return v; }
$T auto Loads() { return Loads<T>(Load<int>()); }
template<class T, int N> auto Loada() { array<T, N> a; for (T& v: a) v = Load<T>(); return a; }
$Ts auto Cols(int rows) { tuple<v<T>...> t; while(rows--) [&]<sz... I>(index_sequence<I...>){(std::get<I>(t).push_back(Load<T>()), ...);}(index_sequence_for<T...>{}); return t; }
//$Ts auto Rows(int rows) { v<tuple<T...>> v; while(rows--) { v.emplace_back(Load<T>()...); } return v; } bugged :(
struct _aIV { $T operator vector<T>() { return Loads<T>(n); } sz n; };
struct _aI { $T operator T() { return Load<T>(); } _aIV operator()(sz n) { return {n}; } }; static inline _aI $; /* int N = $; vi Y = $(N); */
#define MAKE_LOADER(T, alias) \
T alias() { return Load<T>(); } /* int x = Int(); */\
auto alias##s() { return Loads<T>(); } /* vector<> xs = Ints(); */\
auto alias##s(int n) { return Loads<T>(n); } /* vector<> xs = Ints(7); */\
template<int N> auto alias##a() { return Loada<T, N>(); } /* array<> xs = Inta<7>(); */\
// line intentionally left blank
MAKE_LOADER(int, Int)
MAKE_LOADER(long long, LL)
MAKE_LOADER(char, Char)
MAKE_LOADER(string, String)
// kthxbye
void test() {
int k = $;
vvi S;
S.push_back(vi(Int()));
for (int d = 1; d < k; ++d) {
int n = $;
S.push_back(Ints(n));
}
int ans = 0;
vi alok, nalok;
alok.resize(S[k-1].size());
for (int d = k-1; d>=0; --d) {
nalok.clear();
if (d) nalok.resize(S[d-1].size());
int dans = 0;
for (int i = 0; i < alok.size(); ++i) {
alok[i] = max(1, alok[i]);
dans += alok[i];
if (d && S[d][i]) {
nalok[S[d][i]-1] += alok[i];
}
}
ans = max(ans, dans);
swap(alok, nalok);
}
cout << ans << endl;
}
[[maybe_unused]] void jeden_test() { test(); }
[[maybe_unused]] void wiele_test() { int T = $; while (T--) test(); }
int main() {
jeden_test();
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | #include <bits/stdc++.h> using ll = long long; using sz = size_t; using namespace std; // make the code less c++-readable: template<class T> using v = vector<T>; template<class T> using vv = v<v<T>>; using vi = v<int>; using vll = v<ll>; using vvi = vv<int>; using vvll = vv<ll>; // hai loading utilities #define $T template<class T> #define $Ts template<class... T> $T T Load() { T v; cin >> v; return v; } $T auto Loads(int n) { v<T> v; v.reserve(n); while(n--) v.emplace_back(Load<T>()); return v; } $T auto Loads() { return Loads<T>(Load<int>()); } template<class T, int N> auto Loada() { array<T, N> a; for (T& v: a) v = Load<T>(); return a; } $Ts auto Cols(int rows) { tuple<v<T>...> t; while(rows--) [&]<sz... I>(index_sequence<I...>){(std::get<I>(t).push_back(Load<T>()), ...);}(index_sequence_for<T...>{}); return t; } //$Ts auto Rows(int rows) { v<tuple<T...>> v; while(rows--) { v.emplace_back(Load<T>()...); } return v; } bugged :( struct _aIV { $T operator vector<T>() { return Loads<T>(n); } sz n; }; struct _aI { $T operator T() { return Load<T>(); } _aIV operator()(sz n) { return {n}; } }; static inline _aI $; /* int N = $; vi Y = $(N); */ #define MAKE_LOADER(T, alias) \ T alias() { return Load<T>(); } /* int x = Int(); */\ auto alias##s() { return Loads<T>(); } /* vector<> xs = Ints(); */\ auto alias##s(int n) { return Loads<T>(n); } /* vector<> xs = Ints(7); */\ template<int N> auto alias##a() { return Loada<T, N>(); } /* array<> xs = Inta<7>(); */\ // line intentionally left blank MAKE_LOADER(int, Int) MAKE_LOADER(long long, LL) MAKE_LOADER(char, Char) MAKE_LOADER(string, String) // kthxbye void test() { int k = $; vvi S; S.push_back(vi(Int())); for (int d = 1; d < k; ++d) { int n = $; S.push_back(Ints(n)); } int ans = 0; vi alok, nalok; alok.resize(S[k-1].size()); for (int d = k-1; d>=0; --d) { nalok.clear(); if (d) nalok.resize(S[d-1].size()); int dans = 0; for (int i = 0; i < alok.size(); ++i) { alok[i] = max(1, alok[i]); dans += alok[i]; if (d && S[d][i]) { nalok[S[d][i]-1] += alok[i]; } } ans = max(ans, dans); swap(alok, nalok); } cout << ans << endl; } [[maybe_unused]] void jeden_test() { test(); } [[maybe_unused]] void wiele_test() { int T = $; while (T--) test(); } int main() { jeden_test(); return 0; } |
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