Submission #895208

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
895208	2023-12-29 15:42:51	fanwen	Dynamic Diameter (CEOI19_diameter)	C++17	24 / 100	164 ms	54572 KiB

diameter

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#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define ll long long
#define file(name)                  \
    if(fopen(name".inp", "r"))      \
        freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
template <class T> T max(T a, T b, T c) { return max(a, max(b, c)); }
const int MAX = 1e5 + 5;
struct edge {
    int u, v;
    long long w;
    edge(int u = 0, int v = 0, long long w = 0) : u(u), v(v), w(w) {}
    int get(int x) {
        return u ^ x ^ v;
    }
} e[MAX];
int n, q, m, time_in[MAX], time_out[MAX];
vector <int> adj[MAX];
long long W, last;
struct info {
 
 
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Compilation message (stderr)

diameter.cpp: In function 'void update(int, int, int, int, int, long long int)':
diameter.cpp:79:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   79 |     int mid = l + r >> 1;
      |               ~~^~~
diameter.cpp: In function 'int main()':
diameter.cpp:10:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |         freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
diameter.cpp:127:5: note: in expansion of macro 'file'
  127 |     file("diameter");
      |     ^~~~
diameter.cpp:10:49: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |         freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
      |                                          ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
diameter.cpp:127:5: note: in expansion of macro 'file'
  127 |     file("diameter");
      |     ^~~~

• Subtask 1: 11 / 11
• Subtask 2: 13 / 13
• Subtask 3: 0 / 7
• Subtask 4: 0 / 18
• Subtask 5: 0 / 24
• Subtask 6: 0 / 27