谁能告诉我这该怎么写，🙏

Question

Answer 1

#include <stdio.h>
int main()
{
    double b = 0, i = 0, f = 0;
    scanf("%lf", &b);
    for (i = 0; i <= b; i += b / 100)
    {
        f += (i * i + i) * b / 100;
    }
    printf("%lf\n", f);
    return 0;
}

100个矩形精度不太够，1000个比较合适