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#include <stdio.h>
int main()
{
//宣告 浮點數 (double) 變量 kg 及 lbs
//輸入 kg, 格式為 %lf
// 計算lbs
//輸出 lbs, 格式為 %.2lf , %及lf 之間的 .2 (點二) 即是兩個小數點位
return 0;
}
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