C语言上机练习二

 //
 #include<stdio.h>
 int main()
 {
     int a,b;
     while(~scanf("%d%d",&a,&b))
         printf("%d\n",a+b);
 }

 //
 #include<stdio.h>
 #include<string.h>
 char s[];
 int main()
 {
     int i,t,d,x,m;
     while(gets(s)!=NULL)
     {
         t=strlen(s);
         for(i=d=x=m=; i<t; ++i)
         {
             if(s[i]>='A'&&s[i]<='Z')
                 d++;
             if(s[i]>='a'&&s[i]<='z')
                 x++;
             if(s[i]>=''&&s[i]<='')
                 m++;
         }
         printf("%d %d %d\n",d,x,m);
     }
 }

 //
 #include<stdio.h>
 int main()
 {
     int a,b,r,t,x,y;
     while(~scanf("%d%d",&a,&b))
     {
         x=a;
         y=b;
         if(a<b)
         {
             t=a;
             a=b;
             b=t;
         }
         do
         {
             r=a%b;
             a=b;
             b=r;
         }while(r);
         x/=a;
         y/=a;
         printf("%d %d\n",a,x*y*a);
     }
 }

 //
 #include<stdio.h>
 int main()
 {
     int i,s,n;
     while(~scanf("%d",&n))
     {
         for(i=s=; i<=n; ++i)
             s*=i;
         printf("%d\n",s);
     }
 }

 //
 #include<stdio.h>
 #include<string.h>
 int a[];
 int main()
 {
     int n,i,j,len=;
     while(~scanf("%d",&n))
     {
         memset(a,,sizeof a);
         for(i=,a[]=,len=; i<=n; ++i)
         {
             for(j=; j<=len; ++j)
             {
                 if(j)
                 {
                     a[j]=a[j]*i+a[j-]/;
                     a[j-]%=;
                 }
                 else
                     a[j]*=i;
             }
             if(a[len])
                 len++;
             
         }
         for(i=len-; i>=; --i)
             if(i==len-)
                 printf("%d",a[i]);
             else
                 printf("%04d",a[i]);
         printf("\n");
     }
 }

 //
 #include<stdio.h>
 int a[];
 int main()
 {
     int i,n;
     while(~scanf("%d",&n))
     {
         for(i=; i<n; ++i)
             scanf("%d",&a[i]);
         for(i=n-; i>=; --i)
             if(i)
                 printf("%d ",a[i]);
             else
                 printf("%d",a[i]);
         printf("\n");
     }
 }

 //
 #include<stdio.h>
 int a[];
 int main()
 {
     int i,j,s,n;
     while(~scanf("%d",&n))
     {

         for(j=,i=; i<n; ++i)
             if(!(n%i))
                 a[j++]=i;
         for(i=s=; i<j; ++i)
             s+=a[i];
         if(s==n)
         {
             printf("Yes\n");
             for(i=; i<j; ++i)
                 if(i)
                     printf(" %d",a[i]);
                 else
                     printf("%d",a[i]);
             printf("\n");
         }
         else
             printf("No\n");
     }
 }

 //
 #include<stdio.h>
 int a[];
 int main()
 {
     int i,j,s,t,n;
     while(~scanf("%d",&n))
     {
         for(i=; i<n; ++i)
             scanf("%d",&a[i]);
         for(i=; i<n-; ++i)
             for(j=; j<n--i; ++j)
                 if(a[j]>a[j+])
                 {
                     t=a[j];
                     a[j]=a[j+];
                     a[j+]=t;
                 }
         for(i=; i<n; ++i)
             if(i)
                 printf(" %d",a[i]);
             else
                 printf("%d",a[i]);
         printf("\n");
     }
 }

 #include<stdio.h>
 #include<string.h>
 int a[][];
 int main()
 {
     int n,x,y,t;
     while(~scanf("%d",&n))
     {
         memset(a,,sizeof a);
         t=a[x=][y=n-]=n*n;
         while(t>)
         {
             while(x+<n&&!a[x+][y])  a[++x][y]=--t;
             while(y->=&&!a[x][y-]) a[x][--y]=--t;
             while(x->=&&!a[x-][y]) a[--x][y]=--t;
             while(y+<n&&!a[x][y+])  a[x][++y]=--t;
         }
         for(x=; x<n; ++x)
         {
             for(y=; y<n; ++y)
                 if(y)
                     printf(" %d",a[x][y]);
                 else
                     printf("%d",a[x][y]);
             printf("\n");
         }
     }
 }

 //1010（百度康托展开，可以得到你想要的）
 #include<stdio.h>
 #include<string.h>
 char s[];
 int a[]={,,,,,,};
 int main()
 {
     int n,len,i,j,sum,t;
     while(~scanf("%d",&n))
     {
         getchar();
         while(n--)
         {
             gets(s);
             len=strlen(s);
             for(i=sum=; i<len; ++i)
             {
                 for(j=i+,t=; j<len; ++j)
                     if(s[j]<s[i])
                         ++t;
                 sum+=t*a[i];
             }
             printf("%d\n",++sum);
         }
     }
 }