제출 #892685

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
892685	2023-12-25 16:50:55	fanwen	Sprinkler (JOI22_sprinkler)	C++17	0 / 100	9 ms	13404 KiB

sprinkler

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#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define ll long long
#define file(name)                  \
    if(fopen(name".inp", "r"))      \
        freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
const int MAX = 2e5 + 5;
const int MAXD = 41;
int n, L, q, h[MAX], par[MAX], dp[MAX][MAXD];
vector <int> adj[MAX];
int MUL(int &x, int y) {
    x = 1LL * x * y % L;
}
void dfs(int u, int p, int val, int d) {
    MUL(h[u], val);
    if(d == 0) return;
    for (int v : adj[u]) if(v != p) dfs(v, u, val, d - 1);
}
void you_make_it(void) {
    cin >> n >> L;
    for (int i = 1; i < n; ++i) {
 
 
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컴파일 시 표준 에러 (stderr) 메시지

sprinkler.cpp: In function 'int MUL(int&, int)':
sprinkler.cpp:20:1: warning: no return statement in function returning non-void [-Wreturn-type]
   20 | }
      | ^
sprinkler.cpp: In function 'int main()':
sprinkler.cpp:10:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |         freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sprinkler.cpp:54:5: note: in expansion of macro 'file'
   54 |     file("sprinkler");
      |     ^~~~
sprinkler.cpp:10:49: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |         freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
      |                                          ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sprinkler.cpp:54:5: note: in expansion of macro 'file'
   54 |     file("sprinkler");
      |     ^~~~

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