제출 #659883

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
659883	2022-11-19 15:57:04	600Mihnea	Magic Tree (CEOI19_magictree)	C++17	47 / 100	2071 ms	23436 KiB

magictree

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bool home = 0;
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = (int) 1e5 + 7;
int n;
int m;
int k;
int p[N];
int type[N];
int w[N];
int sub[N];
int bg[N];
ll dp[N];
int low[N];
int high[N];
int ord[N];
int top;
vector<int> g[N];
void bu(int a) {
  ord[++top] = a;
  low[a] = top;
  sub[a] = 1;
  for (auto &b : g[a]) {
    bu(b);
    sub[a] += sub[b];
 
 
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컴파일 시 표준 에러 (stderr) 메시지

magictree.cpp: In function 'std::vector<std::pair<int, long long int> > get_and_clr_dp(int)':
magictree.cpp:42:13: warning: unused variable 'i' [-Wunused-variable]
   42 |     if (int i = type[ord[j]]) {
      |             ^
magictree.cpp: In function 'int main()':
magictree.cpp:100:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  100 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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