제출 #884160

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
884160	2023-12-06 16:26:36	fanwen	Tourism (JOI23_tourism)	C++17	100 / 100	510 ms	26196 KiB

tourism

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#include <bits/stdc++.h>
#define fi first
#define se second
#define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
using namespace std;
#ifdef LOCAL
    #include "debug.h"
#else
    #define clog if(false) cerr
#endif
template <class T> struct Fenwick_Tree {
    vector<T> bit;
    int n;
    Fenwick_Tree(int _n = 0) : n(_n), bit(_n + 5){}
    void clear() { fill(bit.begin(), bit.end(), T(0)); }
    void update(int u, T val) {
        for (; u <= n; u += u & -u) bit[u] += val;
    }
    T get(int u) {
        T ans = 0;
        for (; u; u -= u & -u) ans += bit[u];
        return ans;
    }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

tourism.cpp: In function 'void update(int, int, int, int, int, int)':
tourism.cpp:95:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   95 |     int mid = l + r >> 1;
      |               ~~^~~
tourism.cpp: In instantiation of 'Fenwick_Tree<T>::Fenwick_Tree(int) [with T = int]':
tourism.cpp:78:20:   required from here
tourism.cpp:17:9: warning: 'Fenwick_Tree<int>::n' will be initialized after [-Wreorder]
   17 |     int n;
      |         ^
tourism.cpp:16:15: warning:   'std::vector<int> Fenwick_Tree<int>::bit' [-Wreorder]
   16 |     vector<T> bit;
      |               ^~~
tourism.cpp:18:5: warning:   when initialized here [-Wreorder]
   18 |     Fenwick_Tree(int _n = 0) : n(_n), bit(_n + 5){}
      |     ^~~~~~~~~~~~
tourism.cpp: In function 'int main()':
tourism.cpp:5:57: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
tourism.cpp:140:5: note: in expansion of macro 'file'
  140 |     file("tourism");
      |     ^~~~
tourism.cpp:5:90: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                                                   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
tourism.cpp:140:5: note: in expansion of macro 'file'
  140 |     file("tourism");
      |     ^~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 7 / 7
• Subtask 4: 18 / 18
• Subtask 5: 24 / 24
• Subtask 6: 41 / 41