提交记录 #319

编译情况：编译错误

code.c:4:8: error: conflicting types for ‘sqrt’
    4 | double sqrt(double x, double e) {
      |        ^~~~
In file included from /usr/include/features.h:461,
                 from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33,
                 from /usr/include/stdio.h:27,
                 from code.c:2:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:143:1: note: previous declaration of ‘sqrt’ was here
  143 | __MATHCALL (sqrt,, (_Mdouble_ __x));
      | ^~~~~~~~~~

固定测试点暂不可用

等待中

N/A

N/A

附加测试点暂不可用

不可用

N/A

46【大学】求解平方根

#include <stdio.h>
#include <math.h>
double sqrt(double x, double e) {
    double p = x / 2.0; 
    double p_next;

    while (1) {
        p_next = 0.5 * (p + x / p);
        if (fabs(p_next - p) < e) {
            break;
        }
        p = p_next;
    }

    return p_next;
}

int main() {
    double x, e;
    scanf("%lf %lf", &x, &e);
    double result = sqrt(x, e);
    printf("%.8f\n", result);

    return 0;
}