intmain(){inta,b,c,max;printf("pleaseinputa,b,c:");scanf("%d,%d,%d",&a,&b,&c);max=a;if(max2、c;printf("Thelargestnumberis%d",max);return0;}Xt3-1#include#includeintmain(){floatp,r,n;r=0.1;n=10;p=pow(1+r,n);printf("p=%f",p);return0;}Xt3-4(1)#includeintmain(){intc1,c2;c1=197;c2=198;printf("c1=%c,c2=%c",c1,c2);printf("c1=%d,c2=%d",c1,c2);retu
3、rn0;}Xt3-4(2)#includeintmain(){inta,b;floatx,y;charc1,c2;scanf("a=%db=%d",&a,&b);scanf("%f%e",&x,&y);scanf("%c%c",&c1,&c2);printf("a=%d,b=%d,x=%f,y=%f,c1=%c,c2=%c",a,b,x,y,c1,c2);return0;}Xt3-4(3)#includeintmain(){charc1='C',c2='h',c3='i',c4='n',c5='a';c1=c1+4;
4、c2=c2+4;c3=c3+4;c4=c4+4;c5=c5+4;printf("passworis%c%c%c%c%c",c1,c2,c3,c4,c5);return0;}Xt3-4(4)#includeintmain(){floath,r,l,s,sq,vq,vz;floatpi=3.;printf("请输入圆半径r,圆柱高h∶");scanf("%f,%f",&r,&h);//要求输入圆半径r和圆柱高hl=2*pi*r;//计算圆周长ls=r*r*pi;//计算圆面积ssq=4*pi*r*r;//计算圆球表面积sqvq=3.0/4
5、.0*pi*r*r*r;//计算圆球体积vqvz=pi*r*r*h;//计算圆柱体积vzprintf("圆周长为:l=%6.2f",l);printf("圆面积为:s=%6.2f",s);printf("圆球表面积为:sq=%6.2f",sq);printf("圆球体积为:v=%6.2f",vq);printf("圆柱体积为:vz=%6.2f",vz);return0;}Xt3-4(5)#includeintmain(){charc1,c2;printf("请输入两个字符c1,c2:");c1=getchar();c2
6、=getchar();printf("用putchar语句输出结果为:");putchar(c1);putchar(c2);printf("");printf("用printf语句输出结果为:");printf("%c%c",c1,c2);return0;}Xt3-4(6)#includeintmain(){intc1,c2;//整型定义printf("请输入两个整数c1,c2:");scanf("%d,%d",&c1,&c2);printf("按字符输出结果:");printf("%c,%c",c1,c2);printf
7、("按ASCII码输出结果为:");printf("%d,%d",c1,c2);return0;}Xt3-4(7)#includeintmain(){charc1,c2;//定义字符型变量inti1,i2;//定义整型变量printf("请输入两个字符c1,c2:");scanf("%c,%c",&c1,&c2);i1=c1;//赋值给整型变量i2=c2;printf("按字符输出结果:");printf("%c,%c",i1,i2);printf("按整数输出结果:");printf("%d,%d",c1,c2)
8、;return0;}Xt3-4(8)#include