7-78 1017 平均成绩

#include <algorithm>
#include <cmath>
#include <cstdint>
#include <iomanip>
#include <iostream>
#include <limits>
#include <numeric>
#include <sstream>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>

using i32 = std::int32_t;
using i64 = std::int64_t;
using u32 = std::uint32_t;
using u64 = std::uint64_t;
using pii = std::pair<i32, i32>;
using pll = std::pair<i64, i64>;
using vi = std::vector<i32>;
using vll = std::vector<i64>;
using vpii = std::vector<pii>;
using vpll = std::vector<pll>;

void solve();

int main()
{
    std::cin.tie(nullptr)->sync_with_stdio(false);
    solve();
}

void solve()
{
    struct score
    {
        i32 math, eng, comp;
        i32 average;
        void get_average()
        {
            average = std::round(static_cast<double>(math + eng + comp) / 3);
        }
        void print()
        {
            std::cout << "math=" << math;
            std::cout << ',';
            std::cout << "eng=" << eng;
            std::cout << ',';
            std::cout << "comp=" << comp;
            std::cout << ',';
            std::cout << "average=" << average;
        }
    };

    i32 a, b, c;
    while (std::cin >> a >> b >> c)
    {
        score temp{a, b, c};
        temp.get_average();
        temp.print();
        std::cout << std::endl;
    }
}