Submission #885185

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
885185	2023-12-09 07:49:17	SkillIssueWAGuy	Spring cleaning (CEOI20_cleaning)	C++14	100 / 100	140 ms	33172 KiB

cleaning

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#include<vector>
#include<iostream>
#include<utility>
#include<algorithm>
#include<cmath>
using namespace std;
namespace fake{
    std::vector<std::vector<int>> tree;
    std::vector<int> incount, dp, flips, normals, full, parent;
    void setup(int n){
        tree = std::vector<std::vector<int>>(n, std::vector<int>(0));
        dp = parent = std::vector<int>(n, -1);
        incount = std::vector<int>(n, 0);
    }
    void dfs(int node){
        if (tree[node].size() == 0){
            dp[node] = 1;
            if (incount[node] == -1){
                dp[node] = 0;
            }
            return;
        }
        dp[node] = 0;
        for (int i : tree[node]){
            dfs(i);
            dp[node] += dp[i];
        }
        dp[node] %= 2;
        if (incount[node] == -2){
            dp[node] = 1 - dp[node];
 
 
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Compilation message (stderr)

cleaning.cpp: In function 'int docase()':
cleaning.cpp:116:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  116 |         for (int i = 0; i < fake::flips.size() - 1; i++){
      |                         ~~^~~~~~~~~~~~~~~~~~~~~~~~
cleaning.cpp:91:38: warning: unused variable 'lnew' [-Wunused-variable]
   91 |     int out = output + input.size(), lnew;
      |                                      ^~~~

• Subtask 1: 0 / 0
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 16 / 16
• Subtask 5: 19 / 19
• Subtask 6: 17 / 17
• Subtask 7: 30 / 30