全国计算机等级考试二级 C 教程课后编程题答案3-16#includemain(){double a,b,c,s,v;printf("input a,b,c:");scanf("a=%f b=%f c=%f", &a,&b,&c);s=a*b;v=a*b*c;printf("a=%f,b=%f,c=%f\n",a,b,c);printf("s=%f,v=%f",s,v);return 0;}3-17#include main(){int a,b,c;printf("请输入需要划算成小时和分钟的数值\n");scanf("%d",&a);b=a/60;c=a%60;printf("a=%d 小时%d 分钟",b,c);return 0;}3-18 #include main(){int a,b,c,d;printf("请输入两个整数 a 和 b\n");scanf("%d %d",&a,&b);c=a/b;d=a%b;printf("a 和 b 的商和余数分别是%d %d",c,d);return 0;} 3-19#includemain(){double a,b,c,d;printf("please input three numbers\n");scanf("%lf%lf%lf",&a,&b,&c);d=(a+b+c)/3;printf("d=%lf",d);return 0;}3-20#includemain(){printf("please input three numbers");int a,b,c,t;scanf("%d%d%d",&a,&b,&c);t=c;c=b;b=a;a=t;printf("a=%d,b=%d,c=%d",a,b,c);return 0;}4-21#includemain(){int a;printf("请输入 a 的值 a=\n");scanf("%d",&a);switch(a/10){case 0: printf("m=1"); break;case 1: printf("m=1"); break;case 2: printf("m=1"); break;case 3: printf("m=2");break;case 4: printf("m=3");break;case 5: printf("m=4");break;default: printf("m=5");return 0;}}4-22#includemain(){int a,b,c,d,e,f,y,m,t;printf("please input her or his birthday \n");scanf("%d%d%d",&a,&b,&c);printf("请输入目前的日期\n");scanf("%d%d%d",&d,&e,&f);y=d-a;m=e-b;t=f-c;printf("该生的实际年龄是%d 年%d 月%d 天",y,m,t);return 0;}4-24#includemain(){int a,b,c,max;printf("请输入三个整数\n");scanf("%d%d%d",&a,&b,&c);max=a;if(amain(){double x,y;printf("请输入 x 的值\n");scanf("%lf",&x);if(-510||x==10) printf("您输入的 x 的值不在查找范围内");printf("y=%lf",y);return 0;5-17#includemain(){int n,i=1,t,sum=0;for(n=1;n<=101;n+=2){t=i*n;sum...
