【技巧与思想】二分

二分

#include<cstdio>
#include<cstring>
#include<iostream>
#include<cmath>
#include<algorithm>
using namespace std;
int main(){
    int l=1,r=100000000,mid;
    while(l<=r){
        mid=(l+r)/2;
        if(check(mid)){
            l=mid+1;
        }
        else{
            r=mid-1;
        }
    }
    return 0;
}

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作者：zsjzliziyang 
QQ:1634151125 
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本文地址:https://blog.csdn.net/zsjzliziyang/article/details/82023941