1063. 计算谱半径(20)

一、题目

二、个人理解

#include <iostream>
#include <cstdio>
#include <cmath>
using namespace std;
int main()
{
int n;
cin >> n;
double max = 0;
for (int i = 0; i < n; i++) {
int a, b;
cin >> a >> b;
double result = sqrt(a * a + b * b);
if (result > max) {
max = result;
}
}
printf("%.2f", max);
}