제출 #851829

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
851829	2023-09-20 16:45:33	prvocislo	Colors (RMI18_colors)	C++17	100 / 100	580 ms	50812 KiB

colors

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <algorithm>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <string>
#include <vector>
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
using namespace std;
 
struct dsu_rollback
{
    vector<int> p, s, ch;
    dsu_rollback(int n)
    {
        p.resize(n), s.resize(n, 1);
        for (int i = 0; i < n; i++) p[i] = i;
    }
    int root(int i) { return p[i] == i ? i : root(p[i]); }
    void merge(int i, int j)
    {
        i = root(i), j = root(j);
        if (i == j) return;
        if (s[i] < s[j]) swap(i, j);
        p[j] = i, s[i] += s[j], ch.push_back(j);
    }
    void undo(int siz)
    {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

컴파일 시 표준 에러 (stderr) 메시지

colors.cpp: In member function 'void dsu_rollback::undo(int)':
colors.cpp:31:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   31 |         while (ch.size() > siz)
      |                ~~~~~~~~~~^~~~~
colors.cpp: In function 'int solve()':
colors.cpp:75:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
colors.cpp:78:38: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |     for (int i = 0; i < n; i++) scanf("%d", &a[i]), oa[--a[i]].push_back(i);
      |                                 ~~~~~^~~~~~~~~~~~~
colors.cpp:79:38: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   79 |     for (int i = 0; i < n; i++) scanf("%d", &b[i]), ob[--b[i]].push_back(i);
      |                                 ~~~~~^~~~~~~~~~~~~
colors.cpp:80:44: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   80 |     for (int i = 0, u, v; i < m; i++) scanf("%d%d", &u, &v), g[--u].push_back(--v), g[v].push_back(u);
      |                                       ~~~~~^~~~~~~~~~~~~~~~
colors.cpp: In function 'int main()':
colors.cpp:93:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   93 |     scanf("%d", &t);
      |     ~~~~~^~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 7 / 7
• Subtask 3: 8 / 8
• Subtask 4: 15 / 15
• Subtask 5: 7 / 7
• Subtask 6: 16 / 16
• Subtask 7: 10 / 10
• Subtask 8: 22 / 22