Codeforces Round #765 (Div. 2) (A-D)

咕咕咕这个学期一定好好学习

A. Ancient Civilization

二进制贪心一下就行

/*
*/
#include
using namespace std;
typedef long long ll;
const int maxn = 3e5+2;
const int INF = 1e9+7;
int main(){
	int T;cin>>T;
	while(T--){
		int n,l;
		cin>>n>>l;
		vector v(l+1,vector(2,0)); 
		for(int i=0;i