c语言指针部分题答案.doc

#includeint substring(char *s,char *t);int main() char s50; char t20;int num; scanf(%s%s,s,t); num=substring(s,t);printf(%dn,num);return 0;int substring(char *s,char *t) char *st=s; char *tt=t; int num=0; int offset=0; for(;*st!=0;) offset=0; for(;*tt!=0;) if(*st=*tt) st+,tt+,offset+; else break; if(*tt=0) num+; else st=st-offset+1; tt=t; return num;#includevoid change(char *s);void insert(char *s);int main() char s100; scanf(%s,s); change(s); insert(s); printf(%sn,s); return 0;void change(char *s) for(;*s!=0;s+) if(*s)A&(*s)=a&(*s)=W&(*s)=w&(*s)=z) *s=(*s)-22; void insert(char *s) char temp100; int size=0,i; for(i=0;si!=0;i+) tempsize=si; size+; tempsize= ,size+; tempsize=0; for(i=0;tempi!=0;i+) si=tempi; si=0;#includeint replace(char *s);int main() char s50;int num; scanf(%s,s); num=replace(s); printf(替换之后s为：%sn,s); printf(总共替换了：%d个字符n,num); return 0;int replace(char *s) int num=0; for(;*s!=0;s+) if(*s=t) *s=e,num+; if(*s=T) *s=E,num+; return num; #includeint main() char *weeks7=monday,tuesday,wednesday,tuesday,friday,saturday,sunday; int num; scanf(%d,&num); while(num!=0) if(num7|num0) printf(不存在这样的星期制n); else printf(%sn,weeksnum-1); scanf(%d,&num); #includevoid swap(int *a,int *b);void main() char *str5=dfefs,dds,fdse,as,a; char *result5= , , , , ; int len5,i,j; char newstr6; for(i=0;i5;i+) leni=strlen(stri); for(i=0;i5;i+) for(j=i;jlenj) swap(&leni,&lenj); for(i=0;i5;i+) for(j=0;j5;j+) if(strlen(strj)=leni&resulti= ) resulti=strj; for(i=0;i5;i+) printf(%sn,resulti); printf(n); for(i=0;i5;+i) if(leni3) newstri= ; else newstri=resulti2; n