#include<stdio.h>intmain(){intn;/输入的正整数n/intstep=0;/计算步数/scanf("%d",&n);/*输入正整数n*/for(step=0;n>1;step++){if(n%2==0)/*如果n是偶数,则除以2*/n=n/2;else/*如果n是奇数,则用3n+1除以2*/n=(3*n+1)/2;}/*结束for循环*/pri
#include<stdio.h>/当fahr=0,20,……,300时,分别打印华氏温度与摄氏温度对照表/intmain(){printf("摄氏温度-华氏温度对照表\n");intfahr;for(fahr=300;fahr>=0;fahr=fahr-20){printf("%3d%6.1f\n",fahr,(5.0/9.0)(fahr
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