几个简单的C语言源程序.docx

1》分解质因数的程序：#includestdio.hzhishu(x,y){int m=1;while(y%x==0){if(y%x==0) y=y/x;if(y%x==0)m++;}printf(^%d x ,m);}sushu(j){intn,m=0;for(n=2;nj;n++)if(j%n!=0)m++;if(m==j-2)return 1;elsereturn 0;}void main(){inta,i;printf(请输入一个整数:);scanf(%d,a);printf(\n整数%d可分解为：\n,a);for(i=2;i=a/2;i++)if(a%i==0sushu(i)==1){printf(%d,i);zhishu(i,a);}printf(1^1\n\n);}2》看你的星座的程序：#includestdio.hvoid main(){intm,d;float s;printf(请输入你的生日（月、日）：\n);scanf(%d,m);scanf(%d,d);if(m12||m1||d31||d1)printf(你输入的生日错误！);if(m=1m=12d=1d=31);{s=(float)(m+d/100);if(s=3.21s=4.20)printf(你的星座是：白羊座);else if(s=4.21s=5.20)printf(你的星座是：金牛座);else if(s=5.21s=6.21)printf(你的星座是：双子座);else if(s=6.22s=7.22)printf(你的星座是：巨蟹座);else if(s=7.23s=8.22)printf(你的星座是：狮子座);else if(s=8.23s=9.22)printf(你的星座是：处女座);else if(s=9.23s=10.23)printf(你的星座是：天秤座);else if(s=10.24s=11.21)printf(你的星座是：天蝎座);else if(s=11.22s=12.21)printf(你的星座是：射手座);else if((s=12.31s=12.22)||(s=1.19s1.00))printf(你的星座是：摩羯座);else if(s=1.20s=2.18)printf(你的星座是：水瓶座);else if(s=2.19s=3.20)printf(你的星座是：双鱼座);elseprintf(ERRORS!OUT OF MY EXPECTATION!);}printf(\n\n);}3》天干地支年的计算：#includestdio.hvoid main(){inta,i,j;printf(请输入公历年份：);scanf(%d,a);i=(a-3)%10;j=(a-3)%12;printf(%d年是 ,a);switch(i){case 1: printf(甲);break;case 2: printf(乙);break;case 3: printf(丙);break;case 4: printf(丁);break;case 5: printf(戊);break;case 6: printf(己);break;case 7: printf(庚);break;case 8: printf(辛);break;case 9: printf(壬);break;case 0: printf(癸);break;}switch(j){case 1:printf(子鼠);break; case 2:printf(丑牛);break; case 3:printf(寅虎);break; case 4:printf(卯兔);break; case 5:printf(辰龙);break; case 6:printf(巳蛇);break; case 7:printf(午马);break; case 8:printf(未羊);break; case 9:printf(申猴);break; case 10:printf(酉鸡);break; case 11:printf(戌狗);break; case 0:printf(亥猪);break;}printf(年 \n\n);}4》大学生一门课的成绩（人大）：#includestdio.hvoid main(){inta,b;doubles,GPA;printf(请输入期末考试的成绩：);scanf(%d,a);printf(请输入平时课业的成绩：);scanf(%d,b);if(a=55a=0)s=(double)a;else if(a55a=100)s=(double)0.6*a+(double)0.4*b;elseprint