C語言實驗——圓柱體計算

#include <stdio.h> #include <stdlib.h> int main() {     int r, h;     double PI, l, s1, s2, v;     PI = 3.1415926;     scanf("%d %d", &r, &h);     l = PI * r * 2;     s1 = PI * r * r;     s2 = l * h;

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