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1.关于年月日问题 #include<stdio.h> void isDate(int,int); int leap(int); void main() { int year,day; printf("请输入年份和天数（格式：1990 60）\n"  ;scanf("%d%d",&year,&day); isDate(year,day); } void isDate(int year,int day) { if(leap(year)) { if(day>=1 && day<=31){printf("%d-%d-%d\n",year,1,day);} if(day>31 && day<=60){day-=31;printf("%d-%d-%d\n",year,2,day);} if(day>60 && day<=91){day-=60;printf("%d-%d-%d\n",year,3,day);} if(day>91 && day<=121){day-=91;printf("%d-%d-%d\n",year,4,day);} if(day>121 && day<=152){day-=121;printf("%d-%d-%d\n",year,5,day);} if(day>152 && day<=182){day-=152;printf("%d-%d-%d\n",year,6,day);} if(day>182 && day<=213){day-=182;printf("%d-%d-%d\n",year,7,day);} if(day>213 && day<=244){day-=213;printf("%d-%d-%d\n",year,8,day);} if(day>244 && day<=274){day-=244;printf("%d-%d-%d\n",year,9,day);} if(day>274 && day<=305){day-=274;printf("%d-%d-%d\n",year,10,day);} if(day>305 && day<=335){day-=305;printf("%d-%d-%d\n",year,11,day);} if(day>335 && day<=366){day-=335;printf("%d-%d-%d\n",year,12,day);} } else { if(day>=1 && day<=31){printf("%d-%d-%d\n",year,1,day);} if(day>31 && day<=59){day-=31;printf("%d-%d-%d\n",year,2,day);} if(day>59 && day<=90){day-=60;printf("%d-%d-%d\n",year,3,day);} if(day>90 && day<=120){day-=91;printf("%d-%d-%d\n",year,4,day);} if(day>120 && day<=151){day-=121;printf("%d-%d-%d\n",year,5,day);} if(day>151 && day<=181){day-=152;printf("%d-%d-%d\n",year,6,day);} if(day>181 && day<=212){day-=182;printf("%d-%d-%d\n",year,7,day);} if(day>212 && day<=243){day-=213;printf("%d-%d-%d\n",year,8,day);} if(day>243 && day<=273){day-=244;printf("%d-%d-%d\n",year,9,day);} if(day>273 && day<=304){day-=274;printf("%d-%d-%d\n",year,10,day);} if(day>304 && day<=334){day-=305;printf("%d-%d-%d\n",year,11,day);} if(day>334 && day<=365){day-=335;printf("%d-%d-%d\n",year,12,day);} } } int leap(int year) { return year%4==0 && year%100!=0 || year%400==0 ? 1:0; } 2.关于sinx泰勒展开 #include<stdio.h> #include<math.h> void sin_result(float); long factorial(int); void main() { float x; printf("请输入X值\n" ;scanf("%f",&x); sin_result(x); } long factorial(int n) { long s=1; int i; for(i=1;i<=n;i++) { s*=i; } return s; } void sin_result(float x) { int sign=1,i=1; double res=0,tem; do{ tem=1.0*sign*pow(x,i)/factorial(i); res+=tem; sign=-sign; i=i+2; }while(fabs(tem)>=pow(10,-6)); printf("SIN%f=%f\n",x,res); } 3.关于二进制转码 #include <stdio.h> #include <math.h> void versbinary(int n); int isSign(int n); int isSign(int n) { return n>=0 ? 1:0; } void versbinary(int n) { if(isSign(n)){ int i, j,m; int a[8] = { 0 }; for (m = 0; m < 8; m++) { i = n % 2; j = n / 2; n = j; a[m] = i; } for (m = 7; m >= 0; m--) { printf("%d", a[m]); if (m % 4 == 0) printf(" " ; } printf("\n" ;} else { n=fabs(n); int i,j,m; int a[8] = { 0 }; for (m = 0; m < 8; m++) { i = n % 2; j = n / 2; n = j; if(i==1) {a[m] = 0;} else {a[m]=1;} } printf("%d",1); m=0; if(a[m]==0) { a[0]=1; } else { a[m]=0; if(a[m+1]==0)a[m+1]=1; else { a[m+1]==0; if(a[m+2]==0) a[m+2]=1; else { a[m+2]=0; if(a[m+3]==0)a[m+3]=1; else { a[m+3]=0; if(a[m+4]==0)a[m+4]=1; else { a[m+4]=0; if(a[m+5]==0)a[m+5]=1; else { a[m+5]=0; if(a[m+6]==0)a[m+6]=1; else { a[m+6]=0; printf("数据溢出！！！" ;} } } } } } } for (m = 6; m >= 0; m--) { printf("%d", a[m]); if (m % 4 == 0) printf(" " ; } printf("\n" ;} } void main() { int n1,n2; printf("请输入一个十进制数(-128~127):\n" ; scanf("%d%d",&n1,&n2); versbinary(n1); versbinary(n2); } 4.关于安排座位的（12选8） #include<stdio.h> int fac(int n) { int i,sum=1; for(i=1;i<=n;i++) { sum*=i; } return sum; } void main() { int m_num,d_num; printf("请输入成员数m_num,桌子书d_num\n" ;scanf("%d%d",&m_num,&d_num); printf("总共有%d种安排\n",fac(d_num)/(fac(d_num-m_num)*fac(m_num))); } |
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2楼2013-12-02 20:22:24