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2014-11-24 02:05:27 ¡¾´ó ÖРС¡¿ ä¯ÀÀ:1190´Î
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typedef char eleType; // ¶¨ÒåÁ´±íÖеÄÊý¾ÝÀàÐÍ
typedef struct listnode { // ¶¨Òåµ¥Á´±í½á¹¹
eleType data;
struct listnode *next;
}node;
node *create(int n) { // ´´½¨µ¥Á´±í£¬nΪ½Úµã¸öÊý
node *p = (node *)malloc(sizeof(node));
node *head = p; head->data = ¡®A¡¯;
for(int i=¡¯B'; i<'A'+n; i++) {
p = (p->next = (node *)malloc(sizeof(node)));
p->data = i;
p->next = NULL;
}
return head;
}
void print(node *head) { // °´Á´±í˳ÐòÊä³öÁ´±íÖÐÔªËØ
for(; head; head = head->next)
printf(¡°%c ¡°, head->data);
printf(¡°\n¡±);
}
node *reverse(node *head, node *pre) { // Äæתµ¥Á´±íº¯Êý¡£ÕâÊDZÊÊÔʱÐèҪдµÄ×îÖ÷Òªº¯Êý
node *p=head->next;
head->next = pre;
if(p) return reverse(p, head);
else return head;
}
int main(int argc, char* argv[]) {
node *head = create(6);
print(head);
head = reverse(head, NULL);
print(head);
}
18¡¢±àÂëʵÏÖ×Ö·û´®×ªÕûÐ͵ĺ¯Êý£¨ÊµÏÖº¯ÊýatoiµÄ¹¦ÄÜ£©£¬¾Ý˵ÊÇÉñÖÝÊýÂë±ÊÊÔÌâ¡£È罫×Ö·û´® ¡±+123¡± 123, ¡±-0123¡± -123, ¡°123CS45¡± 123, ¡°123.45CS¡± 123, ¡°CS123.45¡± 0
#include ¡°stdafx.h¡±
int str2int(const char *str) { // ×Ö·û´®×ªÕûÐͺ¯Êý
int i=0, sign=1, value = 0;
if(str==NULL) return NULL; // ¿Õ´®Ö±½Ó·µ»Ø NULL
if(str[0]==¡¯-¡¯ || str[0]==¡¯+') { // ÅжÏÊÇ·ñ´æÔÚ·ûºÅλ
i = 1;
sign = (str[0]==¡¯-¡¯ -1 : 1);
}
for(; str[i]>=¡¯0¡ä && str[i]<='9'; i++) // Èç¹ûÊÇÊý×Ö£¬Ôò¼ÌÐøת»»
value = value * 10 + (str[i] - '0');
return sign * value;
}
int main(int argc, char *argv[]) {
char *str = "-123.45CS67";
int val = str2int(str);
printf("str=%s\tval=%d\n", str, val);
}
19¡¢¸èµÂ°ÍºÕ²ÂÏë¡£ÈκÎÒ»¸öżÊý¶¼¿ÉÒÔ·Ö½âΪÁ½¸öËØÊýÖ®ºÍ¡££¨ÆäʵÕâÊǸöC¶þ¼¶¿¼ÊÔµÄÄ£ÄâÊÔÌ⣩
#include "stdafx.h"
#include "math.h"
int main(int argc, char* argv[]) {
int Even=78, Prime1, Prime2, Tmp1, Tmp2;
for(Prime1=3; Prime1<=Even/2; Prime1+=2) {
for(Tmp1=2,Tmp2=sqrt(float(Prime1)); Tmp1<=Tmp2 && Prime1%Tmp1 != 0; Tmp1++);
if(Tmp1<=Tmp2) continue;
Prime2 = Even-Prime1;
for(Tmp1=2,Tmp2=sqrt(float(Prime2)); Tmp1<=Tmp2 && Prime2%Tmp1 != 0; Tmp1++);
if(Tmp1<=Tmp2) continue;
printf("%d=%d+%d\n", Even, Prime1, Prime2);
}
}
20¡¢¿ìËÙÅÅÐò£¨¶«Èíϲ»¶¿¼ÀàËƵÄËã·¨Ìî¿ÕÌ⣬ÓÖÈç¶ÑÅÅÐòµÄËã·¨µÈ£©
#include "stdafx.h"
#define N 10
int part(int list[], int low, int high) { // Ò»ÌËÅÅÐò£¬·µ»Ø·Ö¸îµãλÖÃ
int tmp = list[low];
while(low while(low =tmp) ¨Chigh;
list[low] = list[high];
while(low list[high] = list[low];
}
list[low] = tmp;
return low;
}
void QSort(int list[], int low, int high) { // Ó¦Óõݹé½øÐпìËÙÅÅÐò
if(low int mid = part(list, low, high);
QSort(list, low, mid-1);
QSort(list, mid+1, high);
}
}
void show(int list[], int n) { // Êä³öÁбíÖÐÔªËØ
for(int i=0; i printf("%d ", list[i]);
printf("\n");
}
int main(int argc, char* argv[]) {
int list[N] = {23, 65, 26, 1, 6, 89, 3, 12, 33, 8};
show(list, N); // Êä³öÅÅÐòÇ°ÐòÁÐ
QSort(list, 0, N-1); // ¿ìËÙÅÅÐò
show(list, N); // Êä³öÅÅÐòºóÐòÁÐ
}
21¡¢2005Äê11ÔÂ23ÈÕ»Ûͨ±ÊÊÔÌ⣺дһº¯ÊýÅжÏij¸öÕûÊýÊÇ·ñΪ»ØÎÄÊý£¬Èç12321Ϊ»ØÎÄÊý¡£¿ÉÒÔÓÃÅжÏÈëÕ»ºÍ³öÕ»ÊÇ·ñÏàͬÀ´ÊµÏÖ£¨ÂÔ΢¸´ÔÓЩ£©£¬ÕâÀïÊǽ«ÕûÊýÄæÐòºóÐγÉÁíÒ»ÕûÊý£¬ÅжÏÁ½¸öÕûÊýÊÇ·ñÏàµÈÀ´ÊµÏֵġ£
#include "stdafx.h"
int IsEchoNum(int num) {
int tmp = 0;
for(int n = num; n; n/=10)
tmp = tmp *10 + n%10;
return tmp==num;
}
int main(int argc, char* argv[]) {
int num = 12321;
printf("%d %d\n", num, IsEchoNum(num));
}
22¡¢É¾³ý×Ö·û´®ÖеÄÊý×Ö²¢Ñ¹Ëõ×Ö·û´®£¨ÉñÖÝÊýÂëÒÔÇ°±ÊÊÔÌ⣩£¬Èç×Ö·û´®¡±abc123de4fg56¡±´¦Àíºó±äΪ¡±abcdefg¡±¡£×¢Òâ¿Õ¼äºÍЧÂÊ¡££¨ÏÂÃæµÄËã·¨Ö»ÐèÒªÒ»´Î±éÀú£¬²»ÐèÒª¿ª±Ùпռ䣬ʱ¼ä¸´ÔÓ¶ÈΪO(N)£©
#include "stdafx.h"
void delNum(char *str) {
int i, j=0;
// ÕÒµ½´®ÖеÚÒ»¸öÊý×ÖµÄλ×Ó
for(i=j=0; str[i] && (str[i]<'0' || str[i]>¡¯9¡ä); j=++i);


// ´Ó´®ÖеÚÒ»¸öÊý×ÖµÄλÖÿªÊ¼£¬Öð¸ö·ÅÈëºóÃæµÄ·ÇÊý×Ö×Ö·û
for(; str[i]; i++)
if(str[i]<'0' || str[i]>¡¯9¡ä)
str[j++] = str[i];
str[j] = ¡®\0¡ä;
}
int main(int argc, char* argv[]) {
char str[] = ¡°abc123ef4g4h5¡å;
printf(¡°%s\n¡±, str);
delNum(str);
printf(¡°%s\n¡±, str);
}
23¡¢ÇóÁ½¸ö´®ÖеĵÚÒ»¸ö××Ó´®£¨ÉñÖÝÊýÂëÒÔÇ°ÊÔÌ⣩¡£È硱abractyeyt¡±,¡±dgdsaeactyey¡±µÄ×î´ó×Ó´®Îª¡±actyet¡±¡£
#include ¡°stdafx.h¡±
char *MaxSubString(char *str1, char *str2) {
int i, j, k, index, max=0;
for(i=0; str1[i]; i++)
for(j=0; str2[j]; j++) {
for(k=0; str1[i+k]==str2[j+k] && (str2[i+

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