UVA 573 The Snail

原创于 2015-07-27 20:51:59 发布 · 304 阅读

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#uva #573

本文深入探讨了蜗牛在特定条件下的攀爬行为，利用数学模型分析了疲劳因子如何影响其攀爬距离，直至最终无法继续攀爬的情况。通过代码实现，直观展示了这一过程，为理解生物力学与数学应用提供了新视角。

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题目

蜗牛

分析

If the fatigue factor drops the snail’s climbing distance below zero, the snail does not climb at all that day.
In other words, the snail’s height will exceed the height of the well or become negative.

代码

#include <stdio.h>

int test(int h, int u, int d, int f, int* day)
{
    *day = 0;
    double ks = u, s = 0;
    while (++*day) {
        s += ks;
        if (s > h) return 1;
        s -= d;
        if (s < 0) return 0;
        ks -= f/100.0 * u;
        if (ks < 0) ks = 0;
    }
}

int main(void)
{
    int h, u, d, f, day;
    while (scanf("%d%d%d%d", &h, &u, &d, &f), h) {
        printf(test(h, u, d, f, &day)? "success": "failure");
        printf(" on day %d\n", day);
    }
    return 0;
}