【題目敘述】https://zerojudge.tw/ShowProblem?problemid=d065
#include <iostream>
using namespace std;
int main() {
int a, b, c;
cin >> a >> b >> c;
int mx;
mx = a;
if (b > mx) mx = b;
if (c > mx) mx = c;
cout << mx << "\n";
return 0;
}