硬货 || 单片机常用的14个C语言算法（附详细代码）

void main(){int a[101],x[11],i,p;for(i=0;i<=11;i++)x=0;for(i=1;i<=100;i++){a=rand() % 100;printf("%4d",a);if(i%10==0)printf("\n");}for(i=1;i<=100;i++){p="a"%10;if(p==0) p="10";x[p]=x[p]+1;}for(i=1;i<=10;i++){p="i";if(i==10) p="0";printf("%d,%d\n",p,x);}printf("\n");}

void main(){ int nm,r,n,m,t;printf("please input two numbers:\n");scanf("%d,%d",&m,&n);nm=n*m;if (m{ t="n"; n="m"; m="t"; }r=m%n;while (r!=0){ m="n"; n="r"; r="m"%n; }printf("最大公约数:%d\n",n);printf("最小公倍数:%d\n",nm/n);}

void main(){ int m,i,k;printf("please input a number:\n");scanf("%d",&m);k=sqrt(m);for(i=2;iif(m%i==0) break;if(i>=k)printf("该数是素数");elseprintf("该数不是素数");}将其写成一函数,若为素数返回1，不是则返回0int prime( m%){int i,k;k=sqrt(m);for(i=2;iif(m%i==0) return 0;return 1;}

#include "math.h"int prime(int m){ int i,k;k=sqrt(m);for(i=2;iif(m%i==0) break;if(i>=k)return 1;elsereturn 0;}main(){ int x,i;printf("please input a even number(>=6):\n");scanf("%d",&x);if (x<6||x%2!=0)printf("data error!\n");elsefor(i=2;i<=x/2;i++)if (prime(i)&&prime(x-i)){printf("%d+%d\n",i,x-i);printf("验证成功!");break;}}

void main(){ int i,j,imin,s,a[10];printf("\n input 10 numbers:\n");for(i=0;i<10;i++)scanf("%d",&a);for(i=0;i<9;i++){ imin="i";for(j=i+1;j<10;j++)if(a[imin]>a[j]) imin="j";if(i!=imin){s=a; a=a[imin]; a[imin]=s; }printf("%d\n",a);}}

void main(){ int a[10];int i,j,t;printf("input 10 numbers\n");for(i=0;i<10;i++)scanf("%d",&a);printf("\n");for(j=0;j<=8;j++)for(i=0;i<9-j;i++)if(a>a[i+1]){t=a;a=a[i+1];a[i+1]=t;}printf("the sorted numbers:\n");for(i=0;i<10;i++)printf("%d\n",a);}

void main(){ int a[10],b[10],c[20],i,ia,ib,ic;printf("please input the first array:\n");for(i=0;i<10;i++)scanf("%d",&a);for(i=0;i<10;i++)scanf("%d",&b);printf("\n");ia=0;ib=0;ic=0;while(ia<10&&ib<10){ if(a[ia]{ c[ic]=a[ia];ia++;}else{ c[ic]=b[ib];ib++;}ic++;}while(ia<=9){ c[ic]=a[ia];ia++;ic++;}while(ib<=9){ c[ic]=b[ib];b++;ic++;}for(i=0;i<20;i++)printf("%d\n",c);}

void main(){ int a[10],p,x,i;printf("please input the array:\n");for(i=0;i<10;i++)scanf("%d",&a);printf("please input the number you want find:\n");scanf("%d",&x);printf("\n");p=0;while(x!=a[p]&&p<10)p++;if(p>=10)printf("the number is not found!\n");elseprintf("the number is found the no%d!\n",p);}

void main(){ int a[10],index,x,i;printf("please input the array:\n");for(i=0;i<10;i++)scanf("%d",&a);printf("please input the number you want find:\n");scanf("%d",&x);printf("\n");index=-1;for(i=0;i<10;i++)if(x==a){ index="i"; break;}if(index==-1)printf("the number is not found!\n");elseprintf("the number is found the no%d!\n",index);}

int Dichotomy(int *ucData, int long, int num){int iDataLow  = 0 ;int iDataHigh = num - 1;int iDataMIDDLE;while (iDataLow <= iDataHigh){iDataMIDDLE = (iDataHigh + iDataLow)/2;i f (ucData[iDataMIDDLE] > long){iDataHigh = iDataMIDDLE - 1 ;}else if (ucData[iDataMIDDLE] < long){iDataLow = iDataMIDDLE + 1 ;}  else{return iDataMIDDLE ;}}}

#define A 10char value;char filter(){   char new_value;new_value = get_ad();if ( ( new_value - value > A ) || ( value - new_value > A ))  return value;return new_value;}

#define N   11char filter(){  char value_buf[N]， count,i,j,temp;for ( count=0;count{  value_buf[count] = get_ad();    delay();   }for (j=0;j{  for (i=0;i{  if ( value_buf>value_buf[i+1] ){temp = value_buf; value_buf = value_buf[i+1]; value_buf[i+1] = temp;  }}}return value_buf[(N-1)/2];}

#define N 12char filter(){int   sum = 0，count;for ( count=0;count{  sum+=get_ad();    delay();}return (char)(sum/N);}

#define N 12char value_buf[N]，i=0;char filter(){ char count; int   sum=0;value_buf[i++] = get_ad();if ( i == N )    i = 0;for ( count=0;countsum = value_buf[count];return (char)(sum/N);}

#define a 50char value;char filter(){ char   new_value;new_value = get_ad();return (100-a)*value + a*new_value;}

#include#includetypedef struct PID {double SetPoint;     // 设定目标Desired valuedouble Proportion;    // 比例常数Proportional Constdouble Integral;      // 积分常数Integral Constdouble Derivative;    // 微分常数Derivative Constdouble LastError;    // Error[-1]double PrevError;    // Error[-2]double SumError;   // Sums of Errors} PID;

double sensor (void){return 100.0; }void actuator(double rDelta){}void main(void){PID sPID;double rOut;double rIn;PIDInit ( &sPID );sPID.Proportion = 0.5；sPID.Derivative = 0.0;sPID.SetPoint = 100.0;for (;;) {rIn = sensor ();rOut = PIDCalc ( &sPID,rIn );actuator ( rOut );}}