제출 #776501

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
776501		marvinthang	Sprinkler (JOI22_sprinkler)	C++17	100 / 100	635 ms	62668 KiB

sprinkler

/*************************************
*    author: marvinthang             *
*    created: 08.07.2023 09:40:27    *
*************************************/

#include <bits/stdc++.h>

using namespace std;

#define                  fi  first
#define                  se  second
#define                left  ___left
#define               right  ___right
#define                TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define             MASK(i)  (1LL << (i))
#define           BIT(x, i)  ((x) >> (i) & 1)
#define  __builtin_popcount  __builtin_popcountll
#define              ALL(v)  (v).begin(), (v).end()
#define           REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define          REPD(i, n)  for (int i = (n); i--; )
#define        FOR(i, a, b)  for (int i = (a), _b = (b); i < _b; ++i) 
#define       FORD(i, b, a)  for (int i = (b), _a = (a); --i >= _a; ) 
#define       FORE(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define      FORDE(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i) 
#define        scan_op(...)  istream & operator >> (istream &in, __VA_ARGS__ &u)
#define       print_op(...)  ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
    #include "debug.h"
#else
    #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
    #define DB(...) 23
    #define db(...) 23
    #define debug(...) 23
#endif

template <class U, class V> scan_op(pair <U, V>)  { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>)  { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>)  { return out << '(' << u.first << ", " << u.second << ')'; }
template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) { if constexpr(i == tuple_size<T>::value) return out << ")";  else return print_tuple_utils<i + 1, T>(out << (i ? ", " : "(") << get<i>(tup), tup); }
template <class ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(out, u); }
template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream&>::type operator << (ostream &out, const Con &con) { out << '{'; for (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }

// end of template

const int MAX = 2e5 + 5;
const int MAXD = 41;

int N, Q, L, H[MAX];
vector <int> adj[MAX];

void init(void) {
	cin >> N >> L;
	FOR(i, 1, N) {
		int u, v; cin >> u >> v;
		adj[u].push_back(v);
		adj[v].push_back(u);
	}
	FORE(i, 1, N) cin >> H[i];
	cin >> Q;
}

int par[MAX];

void dfs(int u) {
	for (int v: adj[u]) if (v != par[u]) {
		par[v] = u;
		dfs(v);
	}
}

int mul[MAX][MAXD];

void __mul(int &a, int b) {
	a = 1LL * a * b % L;
}

void process(void) {
	FORE(i, 1, N) REP(d, MAXD) mul[i][d] = 1;
	dfs(1);
	while (Q--) {
		int op, x;
		cin >> op >> x;
		if (op == 1) {
			int d, w; cin >> d >> w;
			while (d && x != 1) {
				__mul(mul[x][d], w);
				__mul(mul[x][d - 1], w);
				--d;
				x = par[x];
			}
			REPD(i, d + 1) __mul(mul[x][i], w);
		} else {
			int res = H[x];
			REP(i, MAXD) {
				__mul(res, mul[x][i]);
				x = par[x];
				if (!x) break;
			}
			cout << res << '\n';
		}
	}
}

int main(void) {
	ios_base::sync_with_stdio(false); cin.tie(nullptr); // cout.tie(nullptr);
	file("sprinkler");
	init();
	process();
	cerr << "Time elapsed: " << TIME << " s.\n";
	return (0^0);
}

컴파일 시 표준 에러 (stderr) 메시지

sprinkler.cpp: In function 'int main()':
sprinkler.cpp:30:61: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sprinkler.cpp:106:2: note: in expansion of macro 'file'
  106 |  file("sprinkler");
      |  ^~~~
sprinkler.cpp:30:94: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                                                       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sprinkler.cpp:106:2: note: in expansion of macro 'file'
  106 |  file("sprinkler");
      |  ^~~~

• Subtask 1: 3 / 3
• Subtask 2: 9 / 9
• Subtask 3: 29 / 29
• Subtask 4: 12 / 12
• Subtask 5: 30 / 30
• Subtask 6: 17 / 17