CSP 2025 提高级第一轮 第 17 题

本代码用于闲暇时间游玩You have no egg!

#include <algorithm>
#include <cstdio>
#include <cstring>
#define ll long long
int cnt_broken = 0;
int cnt_check = 0;
int n, k;
inline bool check(int h) {
    printf("now check:%d\n", h);
    ++cnt_check;
    if (cnt_broken == 2) {
        printf("You have no egg!\n");
        return false;
    }
    if (h >= k) {
        ++cnt_broken;
        return true;
    } else {
        return false;
    }
}
inline bool assert_ans(int h) {
    if (h == k) {
        printf("You are Right using %d checks\n", cnt_check);
        return true;
    } else {
        printf("Wrong answer!\n");
        return false;
    }
}
inline void guess1(int n) {
    for (int i = 1; i <= n; ++i) {
        if (check(i)) {
            assert_ans(i);
            return;
        }
    }
}
inline void guess2(int n) {
    int w = 0;
    for (w = 1; w * (w + 1) / 2 < n; ++w)
        ;
    for (int ti = w, nh = w; --ti, nh += ti, nh = std::min(nh, n);) {
        if (check(nh)) {
            for (int j = nh - ti + 1; j < nh; ++j) {
                if (check(j)) {
                    assert_ans(j);
                    return;
                }
            }
            assert_ans(nh);
            return;
        }
    }
}
int main() {
    scanf("%d%d", &n, &k);
    int t;
    scanf("%d", &t);
    if (t == 1) {
        guess1(n);
    } else {
        guess2(n);
    }
    return 0;
}