Submission #212780

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
212780	2020-03-24 09:39:13	Alexa2001	Chameleon's Love (JOI20_chameleon)	C++17	100 / 100	54 ms	512 KiB

chameleon

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#include "chameleon.h"
#include <vector>
#include <bits/stdc++.h>
using namespace std;
namespace
{
    vector<int> bad[2000];
    int n;
    int color[2000];
}
void dfs(int node, int C = 1)
{
    color[node] = C;
    for(auto it : bad[node])
        if(!color[it])
            dfs(it, 3 - C);
}
static void color_nodes()
{
    memset(color, 0, sizeof(color));
    int i;
    for(i=1; i<=2*n; ++i)
        if(!color[i])
            dfs(i);
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

chameleon.cpp: In function 'void cbin(int, const std::vector<int>&)':
chameleon.cpp:49:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(Query(q) == q.size()) return;
            ~~~~~~~~~^~~~~~~~~~~
chameleon.cpp:58:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             if(Query(q) == q.size()) st = mid + 1;
                ~~~~~~~~~^~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 36 / 36