제출 #387571

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
387571	2021-04-09 02:11:53	rama_pang	Road Construction (JOI21_road_construction)	C++17	100 / 100	7742 ms	19464 KiB

road_construction

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#include <bits/stdc++.h>
using namespace std;
using lint = long long;
const lint inf = 1e18;
class Fenwick {
 public:
  int sz;
  vector<int> tree;
  Fenwick(int sz) : sz(sz), tree(sz, 0) {}
  void Update(int p, int x) {
    for (int i = p; i < sz; i |= i + 1) {
      tree[i] += x;
    }
  }
  int Query(int p) {
    int res = 0;
    for (int i = p; i > 0; i &= i - 1) {
      res += tree[i - 1];
    }
    return res;
  }
};
int main() {
  ios::sync_with_stdio(0);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

road_construction.cpp: In lambda function:
road_construction.cpp:87:11: warning: unused variable 'ylo' [-Wunused-variable]
   87 |       int ylo = lower_bound(begin(coordY), end(coordY), Y[ord[i]] - dist) - begin(coordY);
      |           ^~~
road_construction.cpp:88:11: warning: unused variable 'yhi' [-Wunused-variable]
   88 |       int yhi = upper_bound(begin(coordY), end(coordY), Y[ord[i]] + dist) - begin(coordY);
      |           ^~~
road_construction.cpp: In function 'int main()':
road_construction.cpp:118:21: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  118 |   while (ans.size() < K) {
      |          ~~~~~~~~~~~^~~
In file included from /usr/include/c++/9/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:33,
                 from road_construction.cpp:1:
road_construction.cpp:123:21: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  123 |   assert(ans.size() == K);
      |          ~~~~~~~~~~~^~~~

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