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#defineN10main()

{staticinta[N][N],i,j;for(i=0;i

a[i][j]=a[i-1][j-1]+a[i-1][j];for(i=0;i

printf(\a[i][j]);printf(\}}

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·ñÔòÊä³öNo¡£

#include main()

{ char a[80];int n, i;

gets( a );

n = strlen(a) ;

for ( i = 0; i < n/2; i++ )

if ( a[i] != a[n-1-i] )break;

if ( i < n/2)

printf( \else

printf( \

}

Àý22£ºÔÚÆÁĻһÐÐÉϾÓÖÐÏÔʾ×Ö·û´®¡£#include \main( )

{ static char str[80];int i, len, scol;

printf(\gets(str);

len=strlen(str); /*²âÊÔÓÐЧ³¤*/scol=(80-len)/2;/*¼ÆËãÆðʼÁÐ*/for(i=1; i<=scol; i++) putchar('?');puts(str);}