YHY的专栏

方法一：#includeint my_strlen(char *str){ int count = 0; while(*str++ != '\0') { count++; } return count;}int main(){ char *p = "abcdefg"; printf("%d\n",my_strlen(p)); return 0;}方法二：（

#include#includeint main(){ void check(int *); int *p1; int i; p1 = (int *)malloc(5*sizeof(int)); for(i = 0;i < 5;i ++) { scanf("%d",p1+i); } check(p1); return 0;}void check(int *p)

#include#includeint main (){ void sort(char *name[],int n); void print(char *name[],int n); char *name[] = {"Follow me","BASIC","Great Wall","FORTRAN","Computer design"}; int n = 5; sort(name

方法一：#include int main(){ int max,k,a[10]; printf("input 10 numbers:\n"); for(k=0;k<=9;k++) { scanf("%d",&a[k]); if(max<a[k]) { max=a[k]; } } printf("%d\n",max); return 0;}方法

#includeint main(){ int year; int count = 0; for(year = 1000;year < 2000; year ++) { if(year%4 == 0 && year%100 != 0) { count ++; printf("%d\t",year); } if(year%400 == 0) { co

#includevoid fun(void){ int i = 0; int j = 0; for(i = 1;i <= 9; i ++) { for(j = 1;j <= 9; j ++) { if(j<=i) printf("%d*%d=%d\t",i,j,i*j); } printf("\n"); }}int main(){ fun();

方法一：#includeint main(){ int n = 0; int m = 0; int count = 0; for(n = 101;n < 200;n ++) { for(m = 3;m < n;m ++) { if(n%m == 0) break; } if(n == m) { count ++; printf("%d

#includeint main (){ float score[][4]={{60,70,80,90},{56,89,67,88},{34,78,90,66}}; float *search(float (*pointer)[4],int n); float *p; int i; int k; printf("enter the number of student:"); s

#includeint main (){ int max(int,int); int min(int x,int y); int (*p)(int,int); int a; int b; int c; int n; printf("enter a and b:"); scanf("%d,%d",&a,&b); printf("choose 1 or 2:"); scan

#includeint main(){ void sort(int x[],int n); int i; int *p; int a[10]; p = a; printf("enter 10 integer numbers:"); for(i = 0;i < 10;i++) { scanf("%d",p++); } p = a; sort(p,10); for(p

#includeint main(){ void exchange(int *q1,int *q2,int *q3); int a; int b; int c; int *p1; int *p2; int *p3; printf("please enter three numbers:"); scanf("%d,%d,%d",&a,&b,&c); p1 = &a; p2

#includeint main(){ void average(float *p,int n); void search(float (*p)[4],int n); float score[3][4] = {{65,67,70,60},{80,87,90,81},{90,99,100,98}}; average(*score,12); search(score,2); retu

数组实现：#includeint main(){ void inv(int x[],int n); int i; int a[10] = {3,7,9,11,0,6,7,5,4,2}; printf("the original array:"); for(i = 0;i < 10;i++) { printf("%5d",a[i]); } printf("\n"); i

#include#include#include#includedouble my_atof(char *str){ double ret = 0.0; int sign = 1; char *pointer; while(*str != '\0') { if(isspace(*str)) { str ++; } else if(*str == '-')

#includeint ascii_to_integer(char *str){ int ret = 0; while(*str != '\0') { if((*str '9')) return 0; else { ret = ret * 10 + (*str-'0'); } str ++; } return ret;}int main(

#include#includestruct Person{ char name[20]; int count;}leader[3]={"Li",0,"Zhang",0,"Sun",0};int main (){ int i; int j; char leader_name[20]; for( i = 0;i < 10;i++) { scanf("%s",lead

#includestruct Student{ int num; char name[20]; float score;};int main(){ struct Student stu[5]={{10101,"Zhang",78},{10103,"Wang",98.5},{10106,"Li",86}, {10108,"Ling",73.5},{10110,"Sun",

递归实现：#includeint fib(int n){ if(n <= 2) return 1; else { count ++; return fib(n - 1) + fib(n - 2); } //return fib(10);}int main (){ printf("%d\n",fib(10)); return 0;}函数实现：#

递归实现：#includevoid binary_to_ascii(unsigned int value){ if((value/10) != 0) binary_to_ascii(value/10); printf("%c ",value%10+'0'); }int main(){ unsigned int ret = 1234; binary_to_ascii(ret)

方法一：（加法实现）#includeint main(){ int i = 1,j = 2; //i=01,j=11(二进制数) i = i+j; //i=i+j,j=j j = i-j; //i=i+j,j=i i = i-j; //i=j,j=i printf("%d ,%d\n",i,j); return 0;}方法二：（乘法实现）#i

#includeint main(){ float score; char grade; printf("输入学生的成绩：\n"); scanf("%f",&score); while(score>100 || score < 0) { printf("输入有误，请重输\n"); scanf("%f",&score); } switch((int)(score/10)

#includeint main(){ int x,y; printf("输入x:\n"); scanf("%d",&x); if(x < 1) { y = x; printf("x = %d,y = x = %d\n",x,y); } if(x < 10) { y = 2*x - 1; printf("x = %d,y = (2*x - 1) = %d\n"

#includeint main(){ int i,j,k,n; printf("parcissus numbers are:\n"); for(n = 100;n <1000;n ++) { i = n/100; j = n/10 - i*10; k = n%10; if(n == i*i*i + j*j*j + k*k*k) { printf("%d\n

#includeint main(){ int i,j,n = 0; for(i = 1;i <= 4; i++) { for(j = 1;j <= 5; j++) { if(n%5 == 0) { printf("\n"); //控制在输出5个就换行 } n ++; //n用来累计输出数据的个数 printf("%d\t",i

#includevoid fun(char string1[],char string2[],char string[]){ int i,j; for(i = 0;string1[i] != '\0';i++) { string[i]=string1[i]; } for(j = 0;string2[j] != '\0';j++) { string[i+j]=string2

#includeint main (){ int p,r,m,n,temp; printf("输入两个正整数 m,n:"); scanf("%d,%d,",&m,&n); if(m < n) { temp = m; m = n; n = temp; } p = m * n; while(n != 0) { r = m%n; m = n; n = r;

#includeint main(){ int a[2][3]={{1,2,3},{4,5,6}}; int b[3][2],i,j; printf("array a:\n"); for(i = 0;i <= 1;i ++) { for(j = 0;j <= 2; j ++) { printf("%5d",a[i][j]); b[j][i] = a[i][j];

#include#includeint main(){ int le = 0; double a,b,c,disc,x1,x2,realpart,imagpart; scanf("%lf,%lf,%lf",&a,&b,&c); printf("The equation"); if(fabs(a) <= le-6) { printf("is not a quadratic\n

#includeint main(){ float score[][4] = {{60,70,80,90},{56,89,67,88},{34,78,90,66}}; float *search(float (*pointer)[4]); float *p; int i; int j; for(i = 0;i < 3;i++) { p = search(score+i);

#includestruct Student{ int num; float score; struct Student *next;};int main(){ struct Student a,b,c,*head,*p; a.num = 10101; a.score = 89.5; b.num = 10103; b.score = 90; c.num = 1010

#include#define N 3struct Student{ int num; char name[20]; float score[3]; float aver;};int main(){ void input(struct Student stu[]); struct Student max (struct Student stu[]); void pri

#include #includevoid swap(char *p1,char *p2){ char temp = *p1; *p1 = *p2; *p2 = temp;}char * reverse_string(char * string){ char *left = string; char *right = string + strlen(string)-1;

#include#include#includechar * my_strcat(char *dest,char const *src){ char *ret = dest; assert((dest != NULL) && (src != NULL)); while(*dest != '\0') { dest ++; } while(*src != '\0') {

方法一：#includeint count_one_bits(unsigned int value){ int count = 0; while(value) { if( value%2 == 1) count ++; value = value/2; } return count;}int main(){ int ret = 0; ret = count

#includeint main(){ int fac(int n); int n; int y; printf("input an integer number:"); scanf("%d",&n); y = fac(n); printf("%d != %d\n",n,y); return 0;}int fac(int n){ int f; if(n < 0)

#includeint main(){ int max4(int a,int b,int c,int d); int a; int b; int c; int d; int max; printf("Please enter 4 interger number:"); scanf("%d %d %d %d",&a,&d,&c,&d); max = max4(a,b,c,d)

#include#define N 10int main (){ int i; int j; int a[N][N]; for(i = 0;i < N;i ++) { a[i][i] = 1; a[i][0] = 1; } for(i = 2;i < N;i ++) { for(j = 1;j <= i -1;j ++) { a[i][j] = a[i

#includeint main(){ char string[81]; int i; int num = 0; int word = 0; char c; gets(string); for(i = 0;(c=string[i]) != '\0';i++) { if(c ==' ') { word = 0; } else if(word == 0)

#include float Max = 0;float Min = 0;int main (){ float average(float array[],int n); float ave,score[10]; int i; printf("Please enter 10 scores:"); for(i = 0;i < 10;i++) { scanf("%f",&sc

#includeint main (){ int i = 0; void sort(int array[],int n); int a[10]; printf("enter array:\n"); for(i = 0;i < 10;i ++) { scanf("%d",&a[i]); } printf("the sorted array:\n"); for(i = 0;