Submission #412823

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
4128232021-05-27 15:54:02two_sidesRoad Closures (APIO21_roads)C++17
100 / 100
170 ms51204 KiB
#include "roads.h"
#include <bits/stdc++.h>
using namespace std;
template <class X, class Y>
bool cmin(X &a, const Y &b) {
return a > b ? a = b, 1 : 0;
}
const long long INF = 1e18;
const int MAXN = 200005;
struct Fenwick {
vector <int> cnt; int N, LOG;
vector <long long> sum;
void init(int N) {
this->N = N;
LOG = 32 - __builtin_clz(N);
cnt.assign(N + 1, 0);
sum.assign(N + 1, 0);
}
void add(int i, int v) {
for (; i <= N; i += i & -i) {
cnt[i]++; sum[i] += v;
}
}
 
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Compilation message (stderr)

roads.cpp: In function 'void DFS1(int)':
roads.cpp:56:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     for (int i = 0; i < adj[u].size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~
roads.cpp: In function 'void DFS2(int)':
roads.cpp:81:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |     for (int i = 0; i < tmp.size(); i++) {
      |                     ~~^~~~~~~~~~~~
roads.cpp: In function 'std::vector<long long int> minimum_closure_costs(int, std::vector<int>, std::vector<int>, std::vector<int>)':
roads.cpp:126:46: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  126 |         while (j < N && adj[nodes[j]].size() <= i) {
      |                         ~~~~~~~~~~~~~~~~~~~~~^~~~
roads.cpp:128:41: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  128 |             if (u && adj[par[u]].size() > i)
      |                      ~~~~~~~~~~~~~~~~~~~^~~
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