第十四周项目6-阅读程序

#include <iostream>
using namespace std;
int main()
{
 int a [6]={2,-3,4,-6,-8,10}, i;
 for (i=0;i<6;i++)
  {
    if(a[i]<0) continue;
    cout<<a[i]<<"  ";
  }
  cout<<endl;
  return 0;
}

#include <iostream>
using namespace std;
int  main( ){
   int  y=53,i=0,j,a[8];
    do
    {  
        a[i++]=y%2; 
        y=y/2;
    }while(y!=0) ;
    for(j=i-1;j>=0;j--) 
       cout<<a[j];
    cout<<endl;
    return 0;
}

#include <iostream>
using namespace std;
int  main( ){ 
   char  ch[]={"12yue25ri"};
   int   i,s=0;
   for(i=0;ch[i]>='0' && ch[i]<='9';i++)
       s=10*s+ch[i]-'0';
   cout<<s<<endl;
   return 0;
}

#include <iostream>
using namespace std;
int  main( )
{ 
 int n=0; 
 char str[80]="Beijing-China 2008";
 cout<<str<<endl;
 while(str[n]!='\0')
   str[n++]=str[n]>='a'&&str[n]<='z'?str[n]-'a'+'A':str[n];
 cout<<str<<endl;
 return 0;
}

#include <iostream>
using namespace std;
int  main( )
{ 
    int x[2][3]={5,4,6,7,8,9};
    int m[2],i,j;
    for (i=0;i<2;i++)
    {
       m[i]=x[i][0];
       for(j=1;j<3;j++)
            if(x[i][j]<m[i]) m[i]=x[i][j];
    }
    for (i=0;i<2;i++)
        cout<<m[i]<<endl;
    return 0;
}

#include <iostream>
using namespace std;
int  main( )
{ 
 int a[4][4]={1,2,4,7,2,3,5,8,4,5,6,9,7,8,9,10};
 int i,j,found=0;
 for(i=0;j<4;i++)
 for(j=0;j<=i;j++)
    if(a[i][j]!=a[j][i])
    {
       found=1;
       break;
    }
 if(found)  cout<<"No!"<<endl;
 else  cout<<"Yes!"<<endl;
 return 0;
}

#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
    int a[5][5]={0},i,j,k;
    k=1;
    for (i=0;i<5;i++)
       for (j=i;j>=0;j--)
          a[j][i-j]=k++;
    for (i=0;i<5;i++)
    {
        for (j=0;j<5-i;j++)
           cout<<setw(4)<<a[i][j];
        cout<<endl;
    }
    return 0;
}

#include <iostream>
using namespace std;
void reverse(int a[],int n);
int  main( )
{ 
   int  b[10]={1,2,3,4,5,6,7,8,9,10}; 
   int i,s=0;
   reverse(b,8);
   for(i=5;i<10;i++) s+=b[i];
   cout<<s<<endl;
   return 0;
}
void reverse(int a[],int n)
{
   int  i,t;
   for(i=0;i<n/2;i++)
   {
     t=a[i];  a[i]=a[n-1-i];  a[n-1-i]=t;
   }
}

#include <iostream>
using namespace std;
void f(int a[],int i,int j);
int  main( )
{ 
   int  b[10]={1,2,3,4,5,6,7,8,9,10}; 
   int i,s=0;
   f(b,0,9);
   for(i=5;i<10;i++) s+=b[i];
       cout<<s<<endl;
   return 0;
}
void f(int a[],int i,int j)
{  
    int  t;
    if(i<j)
    {  
        t=a[i]; a[i]=a[j];a[j]=t;
        f(a,i+1,j-1);
    }
}

#include <iostream>
using namespace std;
int f(int n);
int main()
{
   cout<<f(5)<<”   “;
   cout<<f(8)<<endl;
   return 0;      
}


int f(int n)
{
   static int a=2;
   int b=0;
   a+=n;
   b+=a;
   return b;
}

@ Mayuko