提出 #70489499

---

ソースコード 拡げる

#include <bits/stdc++.h>
#ifdef LOCAL
#include <debug.hpp>
#else
#define debug(...) void(0)
#endif

template <class T, class U = T> bool chmin(T& x, U&& y) { return y < x and (x = std::forward<U>(y), true); }

template <class T, class U = T> bool chmax(T& x, U&& y) { return x < y and (x = std::forward<U>(y), true); }

template <class T> void mkuni(std::vector<T>& v) {
    std::ranges::sort(v);
    auto result = std::ranges::unique(v);
    v.erase(result.begin(), result.end());
}

template <class T> int lwb(const std::vector<T>& v, const T& x) {
    return std::distance(v.begin(), std::ranges::lower_bound(v, x));
}

using namespace std;

using ll = long long;

void solve() {
    ll a, b, c;
    cin >> a >> b >> c;

    auto check = [&](ll x) -> bool {
        if (a < x or c < x) {
            return false;
        }
        return a + b + c >= 3 * x;
    };
    ll lb = 0, ub = a + 1;
    while (ub - lb > 1) {
        int mid = (lb + ub) >> 1;
        (check(mid) ? lb : ub) = mid;
    }

    cout << lb << "\n";
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(15);

    int t;
    cin >> t;
    for (; t--;) {
        solve();
    }
    return 0;
}

提出情報

ジャッジ結果