Submission #1037880

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1037880	2024-07-29 09:38:20	juicy	Designated Cities (JOI19_designated_cities)	C++17	100 / 100	396 ms	39076 KiB

designated_cities

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// https://codeforces.com/blog/entry/66022?#comment-501121
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
const int N = 2e5 + 5;
int n, q;
int sz[N], c[N];
bool del[N];
long long dp[N], f[N], ans[N];
vector<array<int, 2>> g[N];
void pre_dfs(int u, int p) {
  for (auto [v, w] : g[u]) {
    if (v ^ p) {
      pre_dfs(v, u);
      dp[u] += dp[v] + w;  
    } else {
      c[u] = w;
    }
  }
}
 
 
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Compilation message (stderr)

designated_cities.cpp: In function 'void cd(int)':
designated_cities.cpp:94:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |   for (int i = 0; i < cands.size(); ++i) {
      |                   ~~^~~~~~~~~~~~~~
designated_cities.cpp:99:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   99 |   for (int i = 1; i < cands.size(); ++i) {
      |                   ~~^~~~~~~~~~~~~~
designated_cities.cpp:107:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  107 |     for (int i = 0, sz = 1; i < cands.size(); ++i) {
      |                             ~~^~~~~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 9 / 9
• Subtask 4: 17 / 17
• Subtask 5: 17 / 17
• Subtask 6: 44 / 44