[問題] 下列程式能印出圓周率達800位，將各for loops改成while loop
這是老師上課出的作業，
下列程式能印出圓周率達800位，將各for loops改成while loops：
long a=10000, b, c=2800, d, e, f[2801], g;
main() { for( ; b-c ; ) f[b++] =
a/5; for ( ; d = 0, g = c*2; c -= 14, printf("%.4d", e+d/a), e = d%a) for
(b = c; d += f[b]*a, f[b] = d%--g, d /= g--, --b; d *= b); }
看不懂寫法，改成while也沒成功跑出來，請問有人會嗎？
此程式跑出來的結果如下
31415926535897932384626433832795028841971693993751058209749445923078164062862089
98628034825342117067982148086513282306647093844609550582231725359408128481117450
28410270193852110555964462294895493038196442881097566593344612847564823378678316
52712019091456485669234603486104543266482133936072602491412737245870066063155881
74881520920962829254091715364367892590360011330530548820466521384146951941511609
43305727036575959195309218611738193261179310511854807446237996274956735188575272
48912279381830119491298336733624406566430860213949463952247371907021798609437027
70539217176293176752384674818467669405132000568127145263560827785771342757789609
17363717872146844090122495343014654958537105079227968925892354201995611212902196
08640344181598136297747713099605187072113499999983729780499510597317328160963185
請按任意鍵繼續 . . .
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