C语言程序设计苏小红版答案之欧阳引擎创编

1、2.2 #include欧阳引擎(2021.01.01) main()float x=2.5,y=2.5,z=2.5;printf(Hx=%iAnu,x);printf(y=%fn,y);printf(Hz=%fn,z);)3.1(1) #includemain()int a=12,b=3;float x=18.5,y=4.6;printf(M%dnM,(float)(a*b)/2);printf( %dn ,(int)x%(i nt)y);)3.2 #includemain()int x,b0,bl,b2,s;printfCInputx:);scanf(”d”,&x);b2=x/100;bl

2、=(x-b2*100)/10;b0=x%10;s二b0*100+bl*10+b2;printf(Hs=%dn,s);3.3 #include#includemain()float rate=0.0225;float n,capital,deposit; printf(nInput n,capital:n); scanf(%f,%f,&n,&capital); deposit=capital*pow( 1 +rate,n); printf(Hdeposit=%fnM,deposit);ssf34 # inc 一 udecsaio.hv #includecmarhhv main()( floar-

3、tpbo八double xy prindvlnpumbcr-)； scanf(-ff4p&bAC)； XH(b+sqr(b 关 b4cr*c)、(2)八 yH(bsqrt(b 关 b4*c)、(2)； prinf(=XH%fy%fnJXy)八 41(1) #includeASdio.hv main()char Clllac2llbc3llc； prinif(=a%cb%cc%cn=c 1O2O3)； 41(2) #includecsidiohv main。2021.2. 01im R12&H15; prindrR%d%&H%d%wv&)_41(3)sncludecsdiohv main()(i

4、n( a&s scanf(-2d% 沃 2s%2d=4a4br prinf(=%a%dnv&)；一42 #includeAstdio.hvmain。(long pbifloat xyscanf(-a%dwb)-Scanf(=%f%fn=4x4y)i pl.inf(=aH%d-bH%dnJpb)八 primf(=XHf&H%fnxvy)； 5#inaudecsrdio.hv2021.2.01main() float a;printfCInnputa:);scanf(”f,&a);if(a=0)a=a;printf(a=%fn,a);)elsea=-a;printf(a=%fn,a);5.2 #i

5、ncludemain()int a;printfCInputa:);scanf(”d”,&a);if(a%2=0)printfCa 是偶数“);)elseprintfCa 是奇数“);)5.3 #inciude#includemain()float a,b,c,s,area;printf(Inputa,b,c:); scanf(n%f,%f,%f&a,&b,&c); if(a+bc&a+cb&b+ca)s=(a+b+c)/2;area=(float)sqrt(s*(s-a)*(s-b)*(s-c); printf(Harea=%fn,area);)elseprintf(不是三角形”)；)5.4

6、 #include#includemain()float a,b,c,x,y;printf(Inputa,b,c:); scanfCfff&a,&b,&c); if(a=0)printf(”该方程不是一元二次方程n”); )if(b*b-4*a*c0)x=(-b+sqrt(b*b-4*a*c)/(2*a); y=(-b-sqrt(b*b-4*a*c)/(2*a);printf( x=%f,y=%fn ,x,y);else if(b*b-4*a*c=0)x=b/(2*a);y=-b/(2*a);printf(nx=%f,y=%fnn,x,y);)elseprintf(”该方程无实根n“)；)5.

7、5 #includemain()int year,flag;printf(HInput a year:H);scanf(H%d,&year);if(year%4=0&year%400! =01 ly ear%400=0)flag=l;)elseflag=0;if(flag=l)printf(%d is a leap year !nH,year);)elseprintf(%d is not a leap year !n,year);)5.6 #includemain()int year,flag;printf(HInput a year:);scanf(%d,&year);flag=year%4

8、00=0llyear%4=0&year%100!=0?l:0;if(flag=l &flag!=0)printf(H%d is a leap year !nM,year);)elseprintf(H%d is not a leap year !nH,year);)5.7 #includemain()char ch;printfCInputch:);scanf(%c,&ch);if(ch=,a &chv=z)ch=getchar();ch=ch-32;printf(%c,%dn,ch,ch);)else if(ch二A&chv二Z) ch=getchar(); ch=ch+32; printf(

9、H%c,%dn,ch,ch);)elsepTintf(”c；ch);)5.8 #includemain()char ch; printf(Inputch:r); scanf(%cu,&ch); if(ch=48&ch=65&ch=97&ch=122) printf(ch 是小写字 n); )else if(ch=32)printfCch 是空格n“)；)elseprintfCch是其他字符n“)；5.9 #includemain()int score,grade;printf(HInput score:n);scanf(%d,&score); grade=score/10; if(score

10、100)printf(uInput eiTornu);)if(score=90&score=80&score=70&score=60&score=0&score60)printf(H%d- -EnH,score);5.10 #includemain()int year,month;printf(HInput year,month:);scanf(%d%d”,&year,&month);if(month 121 lmonth=0)elseswitch(year,month)case 12:case 10:case 8:case 7:case 5:case 3:case 1:printf(31 天

11、 n); break;case 11:case 9:case 6:case 4:printf(H30 天n); break;case 2:if(year%4=0&year! =01 ly ear%400=0) printf(29 天n“)；)elseprintf(H28 天n);)break;default:printf(HInput errornu);6.1(1) #include main()int i,j,k;char space；for(i=l;i=4;i+)for(j=l;j=i;j+)printf(H %cn,space);)for(k= 1 ;k=6;k+)printf(w);p

12、rintf(Mnn);)6.1 (2) #include main()int k=4,n;for(n=0;nk;n+)if(n%2=0) continue;k;)printf(Mk=%dn,n=%dnfk,n);6.1(3) #include main()int k=4,n;for(n=0;nk;n+)if(n%2=0) break;k;)printf(Hk=%d,n=%dn,k,n);)6.2(1) #include main()int i,sum=0;for(i=l;i=101;i+)sum=sum+i;)6.2(2) #include main()long i；long term,sum

13、=0;for(i=l;i=101;i=i+2)term=i*(i+1 )*(i+2); sum=sum+term;)printf(Hsum=%ldn,sum);)6.2(4) #include #includemain()int n=l;float term= 1.0,sign= 1 ,sum=0; while(term= 1 e-4) term=1.0/sign; sum=sum+term; sign=sign+n;n+;)printf(Hsum=%fn,sum);)6.2(5) #include #includemain()int n=l,count=l;float x; double s

14、um,term; printfCInput x:n); scanf(H%f&x);sum=x;term=x;doterm=-term*x*x/(n+ l)*(n+2); sum=sum+term;n=n+2;count+; while(fabs(term)= 1 e-5);printf(Msin(x)=%f,count=%dn,sum,count);)6.3 #includemain()int x=l,find=0;while(!find)if(x%2= 1 &x%3=2&x%5=4&x%6=5&x%7=0) printf(Hx=%dnH,x);find=l;X+；/*int x,find=0

15、;for (x=l;!find;x+)if(x%2=l&x%3=2&x%5=4&x%6=5&x%7=0)printf(Hx=%dnH,x);find=l;)*/6.4 #includemain()int i,n;long p= 1 ,m= 1;printfCInput n:);scanf(H%dH,&n);for(i=l;i=n;i+)p=i*i;6.5 #include main()float c,f;for(c=-40;c=l 10;c=c+10) f二 9/5*c+32;printf(”)6.6 #include #include main()int n;double c=0.01875,x;dox=x*pow(l+c, 12)-1000; n+;)while(x0