Submission #212782

#	Time	Username	Problem	Language	Result	Execution time	Memory
212782		username	Chameleon's Love (JOI20_chameleon)	C++14	40 / 100	26 ms	384 KiB

chameleon

#include "chameleon.h"
//
#include<bits/stdc++.h>
#define REP(i,j,k) for(int i=(j);i<(k);++i)
#define pb push_back
using namespace std;

void Solve(int n){
	const int maxm=1009;
	vector<int>g[maxm];
	int m,mch[maxm];
	m=n<<1;
	REP(i,0,m){
		REP(j,0,i){
			int x=Query({i+1,j+1});
			if(x==1)g[i].pb(j),g[j].pb(i);
		}
	}
	memset(mch,-1,sizeof mch);
	REP(u,0,m){
		REP(i,0,g[u].size()){
			int v=g[u][i];
			if(mch[u]>=0||mch[v]>=0)continue;
			if(g[u].size()==1||g[v].size()==1){
				mch[u]=v,mch[v]=u;
				continue;
			}
			REP(j,0,g[u].size()){
				int nv=g[u][j];
				if(nv==v)continue;				
				REP(k,0,g[v].size()){
					int nu=g[v][k];
					if(nu==u)continue;
					if(Query({u+1,v+1,nv+1})==1&&Query({u+1,nu+1,v+1})==1){
						mch[u]=v,mch[v]=u;
						goto fin;
					}
				}
			}
			fin:;
		}
	}
	REP(i,0,m)if(mch[i]<i)Answer(mch[i]+1,i+1);
}
//

Compilation message (stderr)

chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:4:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define REP(i,j,k) for(int i=(j);i<(k);++i)
                                   ^
chameleon.cpp:21:3: note: in expansion of macro 'REP'
   REP(i,0,g[u].size()){
   ^~~
chameleon.cpp:4:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define REP(i,j,k) for(int i=(j);i<(k);++i)
                                   ^
chameleon.cpp:28:4: note: in expansion of macro 'REP'
    REP(j,0,g[u].size()){
    ^~~
chameleon.cpp:4:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define REP(i,j,k) for(int i=(j);i<(k);++i)
                                   ^
chameleon.cpp:31:5: note: in expansion of macro 'REP'
     REP(k,0,g[v].size()){
     ^~~

• Subtask 1: 0 / 4
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36