Submission #1093567

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1093567	2024-09-27 03:48:22	Zero_OP	Joker (BOI20_joker)	C++14	100 / 100	248 ms	15164 KiB

Joker

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#include "bits/stdc++.h"
using namespace std;
const int MAX = 2e5 + 5;
int n, m, q, f[MAX], eu[MAX], ev[MAX], lab[MAX], d[MAX];
bool exist_odd_cycle;
struct state{
    int x, y;
};
stack<state> states;
void init(int n){
    fill(lab, lab + n, -1);
    fill(d, d + n, 0);
    exist_odd_cycle = false;
}
int find_root(int u){
    return lab[u] < 0 ? u : find_root(lab[u]);
}
int find_dist(int u){
    return lab[u] < 0 ? 0 : d[u] ^ find_dist(lab[u]);
}
bool unite(int u, int v){
    int l = find_dist(u) ^ find_dist(v) ^ 1;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

Joker.cpp: In function 'void solve(int, int, int, int)':
Joker.cpp:72:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   72 |     int mid = l + r >> 1;
      |               ~~^~~
Joker.cpp: In function 'int main()':
Joker.cpp:107:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  107 |         freopen("task.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Joker.cpp:108:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  108 |         freopen("task.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 8 / 8
• Subtask 3: 25 / 25
• Subtask 4: 10 / 10
• Subtask 5: 22 / 22
• Subtask 6: 29 / 29