제출 #1201093

#제출 시각아이디문제언어결과실행 시간메모리
1201093hackstarFinding Routers (IOI20_routers)C++20
70.38 / 100
1 ms328 KiB
#include "routers.h" #include<bits/stdc++.h> using namespace std; vector<int> find_routers(int l, int n, int q) { vector<int>ans(n); ans[0]=0; for(int i=1;i<n;i++){ int step=1; int x=ans[i-1]+1; while(x<=l&&use_detector(x)==i-1){ step*=12; x=min(ans[i-1]+step,l); } int lx=ans[i-1]+step/12,rx=x; int cur=lx; while(lx<=rx){ int m=lx+rx>>1; int id=use_detector(m); if(id==i-1){ cur=m; lx=m+1; } else{ rx=m-1; } } cur*=2; cur-=ans[i-1]; ans[i]=cur; } return ans; }
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