《C语言程序设计》课后习题答案(第四版)谭浩强

upp++;

else if (text[i][j]>='a' && text[i][j]<='z') low++;

else if (text[i][j]>='0' && text[i][j]<='9') dig++;

else if (text[i][j]==' ')

spa++;

else

oth++; }

}

printf(\ printf(\ printf(\ printf(\ printf(\ return 0; } 6-11 #include <> int main()

{ char a[5]={'*','*','*','*','*'}; int i,j,k; char space=' '; for (i=0;i<5;i++)

{ printf(\ printf(\ 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(\ 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 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()