C语言入门与经典程序集锦.docx

#includemain()int a, b;printf(请输入一个整数以求它的立方：);scanf(%d,&a);/scanf_s(%d,&a);b = a*a*a;printf(%d的立方为%dn,a,b);/求立方#include#include#includemain()int a;srand(time(NULL);a = rand()%8+3;/a到b之间的随机数rand()%(b-a+1)+aprintf(3到10之间的随机数为%dn,a);/产生随机数#include#define n 4int main()int i,j;int an;void sort(int *p,int m);printf(请输入要排序的数：);for(i=0;in;i+)scanf(%d,&ai);sort(a,n);printf(从小到大排序结果为：);for(j=0;jn;j+)printf(%d ,aj);printf(n);return 0;void sort(int *p,int m)int r,s,t;for(r=0;rm;r+)for(s=0;sps+1)t=ps;ps=ps+1;ps+1=t;/冒泡法排序#include#define n 5int main()int i,j;int an;void sort(int *p,int m);printf(请输入要排序的数：);for(i=0;in;i+)scanf(%d,&ai);sort(a,n);printf(从大到小排序结果为：);for(j=0;jn;j+)printf(%d ,aj);printf(n);return 0;void sort(int *p,int m)int r,s,t,z;for(r=0;rm-1;r+)for(s=r,t=r+1;tm;t+)if(pspt)s=t;if(r!=s)z=pr;pr=ps;ps=z;/选择法排序#include#define N 2struct studentchar num3;char name6;float score4;stuN+1;int main()void print(struct student stuN);void save(struct student stuN);void range(struct student stuN);int i,j;for(i=0;iN;i+)printf(n输入学生%d的成绩：n,i+1);printf(学号NO.:);/学号、名字之间用英文输入法scanf(%s,stui.num);printf(名字：);scanf(%s,);for(j=0;j3;j+)printf(score %d:,j+1);scanf(%f,&stui.scorej);stui.score3=(stui.score0+stui.score1+stui.score2)/3;printf(n);range(stu);save(stu);print(stu);return 0;void range(struct student stuN)int r,s,t;for(r=0;rN-1;r+)for(s=r,t=r+1;tN;t+)if(stus.score3stut.score3)s=t;if(r!=s)stuN=stur;stur=stus;stus=stuN;void save(struct student stuN)int i,j;FILE *fp;fp=fopen(F:grade.txt,a+);fprintf(fp, NO. name score1 score2 score3 averagen);for(i=0;iN;i+)fprintf(fp, %-5s %-6s,stui.num,);for(j=0;j3;j+)fprintf(fp,%8.0f,stui.scorej);fprintf(fp,%9.1f,stui.score3);fprintf(fp,n);fclose(fp);void print(struct student stuN)int i,j;printf(n NO. name score1 score2 score3 averagen);for(i=0;iN;i+)printf( %-5s %-6s,stui.num,