2071 Max Num

#include<iostream>#include<iomanip>#include<vector>using namespace std;int main(){int t;while (cin >> t){int n;while (t--&&cin >> n){double num;vector<double> v;while (n--&&cin >> num){v.push_back(num);}double max = v[0];for (auto c:v)if (c > max)max = c;cout << fixed << setprecision(2) << max << endl;}}return 0;}