Submission #944964

#	Time	Username	Problem	Language	Result	Execution time	Memory
944964		Xiaoyang	Chameleon's Love (JOI20_chameleon)	C++17	0 / 100	2 ms	596 KiB

chameleon

#include "chameleon.h"
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
 
#define fi first 
#define se second 
#define pll pair<ll,ll>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl;
#define MP make_pair
#define rep(i,a,b) for(ll i=a;i<b;i++)
#define SZ(x) (ll)x.size()
#define ALL(x) x.begin(),x.end()
#define endl "\n"
const ll inf=1e18;
ll lowbit(ll x){return x&(-x);}
 
 
void Solve(int n) {
	vector<int>a;
	rep(i,1,2*n+1)a.pb(i);
	while(!a.empty()){
		ll lo=0,hi=a.size()-1;
		while(lo<hi){
			ll mid=lo+hi>>1;
			vector<int>aa,bb;
			rep(i,0,mid)aa.pb(a[i]);
			rep(i,1,mid)bb.pb(a[i]);
			ll x=Query(aa);
			ll y=Query(bb);
			if(x==y)hi=mid-1;
			else lo=mid;
		}
      	ll xx=a[0],yy=a[lo];
		a.erase(a.begin());
		a.erase(a.begin()+lo-1);
      	Answer(xx,yy);
	}
}

Compilation message (stderr)

chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:27:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |    ll mid=lo+hi>>1;
      |           ~~^~~

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