#include <iostream> #include <iomanip> using namespace std; int main() { int n; cin >> n; double sum_chinese = 0, sum_math = 0, sum_english = 0; for (int i = 0; i < n; i++) { int chinese, math, english; cin >> chinese >> math >> english; sum_chinese += chinese; sum_math += math; sum_english += english; } cout << fixed << setprecision(1); cout << sum_chinese / n << " " << sum_math / n << " " << sum_english / n << endl; return 0; } /************************************************************** Problem: 1274 User: wengsihan Language: C++ Result: Accepted Time:9 ms Memory:2072 kb ****************************************************************/