2023-09-07力扣每日一题

链接:

[2594. 修车的最少时间](https://leetcode.cn/problems/form-smallest-number-from-two-digit-arrays/)

题意:

一个能力R的人R*N*N分钟修N辆车,求最快多久修完(多人多车)

解:

二分很好想,主要是怎么检查(数学废物润去看题解了)

实际代码:

long long repairCars(vector& ranks, int cars)
{
	typedef long long int ll;
    sort(ranks.begin(),ranks.end());
    ll l=1,r=1ll*ranks[ranks.size()-1]*pow(cars,2);
    while(l>1;
    	
    	ll cnt=0;
    	for(auto rank:ranks) cnt+=sqrt(m/rank);
		if(cnt>=cars) r=m;
		else l=m+1;
	}
	return l;
}

限制:

  • 1 <= ranks.length <= 105
  • 1 <= ranks[i] <= 100
  • 1 <= cars <= 106

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