如果是老谭的，你看看下面是否是你要的。第三章 3.4
main()
{int a,b,c;long int u,n;float x,y,z;char c1,c2;a=3;b=4;c=5;x=1.2;y=2.4;z=-3.6;u=51274;n=128765;c1='a';c2='b';printf("\n");printf("a=2d b=2d c=2d\n",a,b,c);printf("x=8.6f,y=8.6f,z=9.6f\n",x,y,z);printf("x+y=5.2f y+z=5.2f z+x=5.2f\n",x+y,y+z,z+x);printf("u=6ld n=9ld\n",u,n);printf("c1='%c'or%d(ascii)\n",c1,c1);printf("c2='%c'or%d(ascii)\n",c2,c2);}
3.5
57
5 7
67.856400,-789.123962
67.856400,-789.123962
67.86-789.12,67.856400,-789.123962,67.856400,-789.123962
6.785640e+001,-7.89e+002
a,65,101,41
1234567,4553207,d687
65535,177777,ffff,-1
computer,com
3.6
a=3 b=7/
x=8.5 y=71.82/
c1=a c2=a/
3.7
10 20aa1.5-3.75+1.4,67.8/
(空 3)10(空3)20aa1.5(空1)-3.75(空1)(随意输入一个数），67.8 回车
3.8
main()
{float pi,h,r,l,s,sq,sv,sz;pi=3.1415926;printf("input r,h\n");scanf("%f,%f",&r,&h);l=2*pi*r;s=r*r*pi;sq=4*pi*r*r;sv=4.0/3.0*pi*r*r*r;sz=pi*r*r*h;printf("l=6.2f\n",l);printf("s=6.2f\n",s);printf("sq=6.2f\n",sq);printf("vq=6.2f\n",sv);printf("vz=6.2f\n",sz);}
3.9
main()
{float c,f;scanf("%f",&f);c=(5.0/9.0)*(f-32);printf("c=5.2f\n",c);}
3.10
include"stdio.h
main()
{char c1,c2;scanf("%c,%c",&c1,&c2);putchar(c1);putchar(c2);printf("\n");printf("%c%c\n",c1,c2);}
第四章
4.3
(1)0(2)1(3)1(4)0(5)1
4.4
main()
{int a,b,c;scanf("%d,%d,%d",&a,&b,&c);if(a)
if(b)
printf("max=d\n",c);else
printf("max=d\n",b);else if(a)
printf("max=d\n",c);else
printf("max=d\n",a);}
main(){int a,b,c,temp,max;scanf("%d,%d,%d",&a,&b,&c);temp=(a>b)?a:b;max=(c>temp)?c:temp;printf("max=d",max);}
4.5
main()
{int x,y;scanf("%d",&x);if(x)y=x;else if(x)y=2*x-1;else y=3*x-11;printf("y=d",y);}
4.6
main()
{int score,temp,logic;char grade;logic=1;while(logic)
{scanf("%d",&score);if(score>=0&score)logic=0;}
if(score=100)
temp=9;else
temp=(score-score%10)/10;switch(temp)
{case 9:grade='a';break;case 8:grade='b';break;case 7:grade='c';break;case 6:grade='d';break;case 5:
case 4:
case 3:
case 2:
case 1:
case 0:grade='e';}
printf"score=d,grade=c",score,grade);}
4.7 main()
{long int num;int indiv,ten,hundred,thousand,ten_thousand,place;scanf("%ld",&num);if(num>9999)place=5;else if(num>999)place=4;else if(num>99)place=3;else if(num>9)place=2;else place=1;printf("place=d\n",place);ten_thousand=num/10000;thousand=(num-ten_thousand*10000)/1000;hundred=(num-ten_thousand*10000-thousand*1000)/100;ten=(num-ten_thousand*10000-thousand*1000-hundred*100)/10;indiv=num-ten_thousand*10000-thousand*1000-hundred*100-ten*10;switch(place)
{case 5:printf("%d,%d,%d,%d,%d\n",ten_thousand,thousand,hundred,ten,indiv);printf("%d,%d,%d,%d,%d\n",indiv,ten,hundred,thousand,ten_thousand);break;case 4:printf("%d,%d,%d,%d\n",thousand,hundred,ten,indiv);printf("%d,%d,%d,%d\n",indiv,ten,hundred,thousand);break;case 3:printf("%d,%d,%d\n",hundred,ten,indiv);printf("%d,%d,%d\n",indiv,ten,hundred);break;case 2:printf("%d,%d\n",ten,indiv);printf("%d,%d\n",indiv,ten);break;case 1:printf("%d\n",indiv);printf("%d\n",indiv);}
}
4.8
main()
{long i;float bonus,bon1,bon2,bon4,bon6,bon10;bon1=100000*0.1;bon2=bon1+100000*0.075;bon4=bon2+200000*0.05;bon6=bon4+200000*0.03;bon10=bon6+400000*0.015;scanf("%ld",&i);if(i)bonus=i*0.1;else if(i)bonus=bon1+(i-100000)*0.075;else if(i)bonus=bon2+(i-200000)*0.05;else if(i)bonus=bon4+(i-400000)*0.03;else if(i)bonus=bon6+(i-600000)*0.015;else bonus=bon10+(i-1000000)*0.01;printf("bonus=10.2f",bonus);}
main()
{long i;float bonus,bon1,bon2,bon4,bon6,bon10;int branch;bon1=100000*0.1;bon2=bon1+100000*0.075;bon4=bon2+200000*0.05;bon6=bon4+200000*0.03;bon10=bon6+400000*0.015;scanf("%ld",&i);branch=i/100000;if(branch>10)branch=10;switch(branch)
{case 0:bonus=i*0.1;break;case 1:bonus=bon1+(i-100000)*0.075;break;case 2:
case 3:bonus=bon2+(i-200000)*0.05;break;case 4:
case 5:bonus=bon4+(i-400000)*0.03;break;case 6:
case 7
case 8:
case 9:bonus=bon6+(i-600000)*0.015;break;case 10:bonus=bon10+(i-1000000)*0.01;}
printf("bonus=10.2f",bonus);}
4.9
main()
{int t,a,b,c,d;scanf("%d,%d,%d,%d",&a,&b,&c,&d);if(a>b){t=a;a=b;b=t;}
if(a>c){t=a;a=c;c=t;}
if(a>d){t=a;a=d;d=t;}
if(b>c){t=b;b=c;c=t;}
if(b>d){t=b;b=d;d=t;}
if(c>d){t=c;c=d;d=t;} printf("%d%d%d%d\n",a,b,c,d);}
4.10
main()
{int h=10;float x,y,x0=2,y0=2,d1,d2,d3,d4;scanf("%f,%f",&x,&y);d1=(x-x0)*(x-x0)+(y-y0)*(y-y0);d2=(x-x0)*(x-x0)+(y+y0)*(y+y0);d3=(x+x0)*(x+x0)+(y-y0)*(y-y0);d4=(x+x0)*(x+x0)+(y+y0)*(y+y0);if(d1>1&d2>1&d3>1&d4>1)h=0;printf("h=d",h);}