C语言模拟题(4)

scanf(\ flag=0;

/**/ switch(\ switch(op) {

case '+': ans=num1+num2; break; case '-': ans=num1-num2; break; case '*': ans=num1*num2; break; case '/': ans=num1/num2; break; case '%': ans=num1%num2; break; /**/ else: /**/ default: { printf(\ }

if (!flag) printf(\ getch(); } 9、

#include void main() {

int item,sa,sb; sa=0;sb=0;

printf(\ scanf(\ while(/**/item!=0/**/) {

if(item>0)

/**/sa++;/**/ else sb++;

scanf(\ }

printf(\ getch(); }?? 11、

#include #include

int f( float r,float x,/**/ float y /**/) {

int in_out;

in_out =sqrt(x*x+y*y) < /**/ r /**/; return in_out; }

void main() {

float r=-1,x,y; int in_out; while(r<0)

{printf(\ scanf(\ }

printf(\ scanf(\ in_out = f(r,x,y); if(in_out == 0)

printf(\ else

printf(\ getch(); } 12、

#include \void main() {

char str[100]; /**/ int /**/ i=0;

printf(\ while((str[i]=getchar())!='\\n') i++; str[i]='\\0';

for(i=0;str[i]!='\\0';i++)

{ if( str[i]>='A' && str[i]<='Z' ) str[i]+=32;

else if( str[i]>='a' && str[i]<='z')

/**/ str[i]- =32 /**/; str[i] =str[i]-32; printf(\ }

getch(); } 13、

#include #include void main() {

int r,a,b,t;

printf(\ b: \ scanf(\ if(a

/**/ r=a/b; /**/ r=a%b; while( r!=0 ) {a=b; b=r; r=a%b; }

printf(\ getch(); }

14、

#include #include double fun(double x) {/**/ double y;

y=(sin(x)+pow(x,6))/(2.6+x* log10(300)); return y; /**/ }

void main() {

clrscr();

printf(\ printf(\ printf(\ getch(); } 15、

#include double f(double k,int n) { double t=0;

/**/int i=1,sign=1; while(i<=n)

{ t=t+sign*k/(i*(i+1));

i++;

sign= (-1)*sign;}

}/**/

return (t); }

void main() { double sum; sum=f(5.36,9);

printf(\ getch(); } 16、

#include #include main() {

char str[80];

/**/ int i;len; sum=0; /**/ int i,len, sum=0; printf(\ gets(str);

len = strlen(str); for(i=0; i

/**/ if( str[i] >= 0 && str[i] <= 9) /**/ if( str[i] >=? 0? && str[i] <= ?9?) sum++; }

printf(\ getch(); } 17、