Submission #448142

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
448142	2021-07-29 03:27:51	jhnah917	Chameleon's Love (JOI20_chameleon)	C++14	100 / 100	94 ms	1528 KiB

chameleon

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#include "chameleon.h"
#include <bits/stdc++.h>
using namespace std;
namespace {
    int N, Match[1010], Color[1010];
    bool Love[1010][1010];
    vector<int> G[1010], Nodes[2];
    void Init(){
        memset(Match, -1, sizeof Match);
        memset(Color, -1, sizeof Color);
        memset(Love, 0, sizeof Love);
        for(int i=0; i<1010; i++) G[i].clear();
    }
    void DFS(int v, int color){
        Color[v] = color; Nodes[color].push_back(v);
        for(auto i : G[v]) if(Color[i] == -1) DFS(i, color^1);
    }
    bool HasEdge(vector<int> vec, int now){
        vec.push_back(now);
        return Query(vec) < vec.size();
    }
    int Search(const vector<int> &vec, int v){
        int l = 0, r = vec.size() - 1;
        while(l < r){
            int m = l + r >> 1;
 
 
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Compilation message (stderr)

chameleon.cpp: In function 'bool {anonymous}::HasEdge(std::vector<int>, int)':
chameleon.cpp:24:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |         return Query(vec) < vec.size();
      |                ~~~~~~~~~~~^~~~~~~~~~~~
chameleon.cpp: In function 'int {anonymous}::Search(const std::vector<int>&, int)':
chameleon.cpp:30:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   30 |             int m = l + r >> 1;
      |                     ~~^~~

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