C语言5_6章习题课PPT课件

2020/10/13
7Leabharlann main() {int a,b,c,i; for(i=100;i<=999;i++) { a=i/100;
b=(i-a*100)/10; c=i%10; if(i==a*a*a+b*b*b+c*c*c) printf("%d=%d^3+%d^3+%d^3\n",i,a,b,c); } }
} else printf("It is not a trilateral!"); }
2020/10/13
1
main() { float a,b,c,max;
printf("Enter three data a b c=?\n"); scanf("%f%f%f",&a,&b,&c); if(a>b)
2020/10/13
11
Main() { long x; For(x=1;!(x%3==2&&x%5==3&&x%7==5);x++); Printf(“%ld\n”,x); }
2020/10/13
12
main() {long x; for(x=1;;x++) if(x%3==2 && x%5==3 &&x%7==5) {printf("%ld\n",x);break;} }
if(a>c) max=a; else max=c; else if(b>c) max=b; else max=c; printf("Max=%f\n",max); }
2020/10/13
2
main() {float a,b,c,t,max; printf("Enter data a b c=?\n"); scanf("%f%f%f",&a,&b,&c); t=(a>b)? a:b; max=(t>c)?t:c; printf("Max=%f\n",max); }
2020/10/13
8
Main() { int a,b,c; For(a=1;a<=9;a++)
for(b=0;b<=9;b++) for(c=0;c<=9;c++) if(a*100+b*10+c==a*a*a+b*b*b+c*c*c) printf(“%d=%d^3+%d^3+%d^3\n”, a*100+b*10+c,a,b,c);
2020/10/13
13
#include"math.h" main() { int n,x=2; double sum=0; for(n=0;n<=63;n++) sum=sum+pow(x,n); printf("sum=%lf\n",sum); }
#include"math.h" main() {float a,b,c,s,area; printf("Enter three real a,b,c=?\n"); scanf("%f%f%f",&a,&b,&c); if(a+b>c&&b+c>a&&a+c>b)
{ s=.5*(a+b+c); area=sqrt(s*(s-a)*(s-b)*(s-c)); printf("Area=%10.2f\n",area);
}
2020/10/13
9
Main() { long x=1; While(!(x%3==2 && x%5==3 && x%7==5))
x++; Printf(“%ld\n”,x); }
2020/10/13
10
Main() { Long x=0; Do X++; While(x%3==2 && x%5==3 && x%7==5); Printf(“%ld\n”,x); }
2020/10/13
6
#include"stdio.h" main() { char c1,operater;
float x,y,z; scanf("%f",&x); c1=getchar(); operater=getchar(); scanf("%f",&y); switch(operater) {case '+':z=x+y;break; case '-':z=x-y;break; case '*':z=x*y;break; case '/':z=x/y;break; default : printf("Enter is Error\n"); } printf("%f%c%f=%f\n",x,operater,y,z); }
2020/10/13
3
main() { float x,y; printf("Enter a data x=?\n"); scanf("%f",&x); if(x<1) y=x; else if(x>=1 && x<10) y=2*x-1; else if(x>=10) y=3*x-11; printf("x=%f y=%f\n",x,y); }
case 9: c1='A';break; case 8: c1='B';break; case 7: c1='C';break; case 6: c1='D';break; case 5: case 4: case 3: case 2: case 1: case 0: c1='E'; } printf("score=%f Grade=%c\n",x,c1); } }
2020/10/13
4
main() {char c1; float x; printf("Input data x=?\n"); scanf("%f",&x); if(x<0 || x>100) printf("Enter data is error!\n"); else if(x>=90 && x<=100) c1='A'; else if(x>=80 && x<90) c1='B'; else if(x>=70 && x<80) c1='C'; else if(x>=60 && x<70) c1='D'; else if(x>=0 && x<60) c1='E'; printf("%f %c\n",x,c1); }
2020/10/13
5
main() {float x; char c1; printf("Enter score x=?\n"); scanf("%f",&x); if(x<0 || x>100) printf("Enter is Erorr ! \n"); else {switch((int)(x/10)) { case 10: