for (j=1;j<=i;j++)
printf(\ for (k=0;k<5;k++) printf(\ }
printf(\ return 0; }
6-12a-c #include <> int main() { int j,n;
char ch[80],tran[80];
printf(\ gets(ch);
printf(\ :%s\ j=0;
while (ch[j]!='\\0')
{ if ((ch[j]>='A') && (ch[j]<='Z')) tran[j]=155-ch[j];
else if ((ch[j]>='a') && (ch[j]<='z')) tran[j]=219-ch[j]; else
tran[j]=ch[j]; j++; } n=j;
printf(\ for (j=0;j 6-12b #include <> int main() {int j,n; char ch[80]; printf(\ gets(ch); printf(\ j=0; while (ch[j]!='\\0') { if ((ch[j]>='A') && (ch[j]<='Z')) ch[j]=155-ch[j]; else if ((ch[j]>='a') && (ch[j]<='z')) ch[j]=219-ch[j]; else ch[j]=ch[j]; j++; } n=j; printf(\ for (j=0;j #include <> int main() { char s1[80],s2[40]; int i=0,j=0; printf(\ scanf(\ printf(\ scanf(\ while (s1[i]!='\\0') i++; while(s2[j]!='\\0') s1[i++]=s2[j++]; s1[i]='\\0'; printf(\ return 0; } 6-14 #include <> int main() { int i,resu; char s1[100],s2[100]; printf(\ gets(s1); printf(\ gets(s2); i=0; while ((s1[i]==s2[i]) && (s1[i]!='\\0'))i++; if (s1[i]=='\\0' && s2[i]=='\\0') resu=0; else resu=s1[i]-s2[i]; printf(\ return 0; } 6-15 #include <> #include <> int main() { char s1[80],s2[80]; int i; printf(\ scanf(\ for (i=0;i<=strlen(s2);i++) s1[i]=s2[i]; printf(\ return 0; } 第7章用函数实现模块化程序设计7-1-1 #include <> int main() {int hcf(int,int); int lcd(int,int,int); int u,v,h,l; scanf(\ h=hcf(u,v); printf(\ l=lcd(u,v,h); printf(\ return 0; 218页】 【第 } int hcf(int u,int v) {int t,r; if (v>u) {t=u;u=v;v=t;} while ((r=u%v)!=0) {u=v; v=r;} return(v); } int lcd(int u,int v,int h) { return(u*v/h); } 7-1-2 #include <> int Hcf,Lcd; int main() {void hcf(int,int); void lcd(int,int); int u,v; scanf(\ hcf(u,v); lcd(u,v); printf(\ printf(\ return 0; } void hcf(int u,int v) {int t,r; if (v>u) {t=u;u=v;v=t;} while ((r=u%v)!=0) {u=v; v=r; } Hcf=v; } void lcd(int u,int v) { Lcd=u*v/Hcf; } 7-2 #include <> #include <> float x1,x2,disc,p,q; int main() {void greater_than_zero(float,float); void equal_to_zero(float,float); void smaller_than_zero(float,float); float a,b,c; printf(\ scanf(\ printf(\ disc=b*b-4*a*c; printf(\ if (disc>0) { greater_than_zero(a,b); printf(\ } else if (disc==0) {equal_to_zero(a,b); printf(\ } else {smaller_than_zero(a,b); printf(\ } return 0; } void greater_than_zero(float a,float b) {x1=(-b+sqrt(disc))/(2*a); x2=(-b-sqrt(disc))/(2*a); } void equal_to_zero(float a,float b) { x1=x2=(-b)/(2*a);
C语言程序设计(谭浩强)第四版-课后答案解析



