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zyj8119

ľ³æ (ÖøÃûдÊÖ)


[×ÊÔ´] ¡¾ÇóÖú¡¿º¯ÊýµÄµ÷Óá¾ÒÑÍê½á¡¿

CODE:
#include
#define N 4
void swap(int *p1,int *p2)
{   int p;
   p=*p1;*p1=*p2;*p2=p;
}
void sort(int a[N][N])
{    int i,j,k;
     for(i=0;i                  for(j=0;j                          for(k=j+1;k                                  if(i%2==0?a[i][j]>a[i][k]:a[i][j]                                          swap(a[i]+j,a[i]+k);
}
void main()
{   int a[N][N]={{3,4,2,1},{8,7,5,6},{12,10,11,9},{15,14,16,13}};
    int i,j;
        sort(a);
        for(i=0;i         {   for(j=0;j             printf("%3d",a[i][j]);
            printf("\n");
        }
}

ΪºÎÕâ¸ö³ÌÐòµ÷ÓÃswap£¬Ê¹ÓõÄÊÇswap(a+j,a+k),¶ø²»ÊÇswap(a[j],a[k])?

[ Last edited by ÓàÔó³É on 2010-12-13 at 21:58 ]
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smart0193

ľ³æ (СÓÐÃûÆø)


¡ï
zyj8119(½ð±Ò+10):¸Ðл·ÖÎö£¬¾«²Ê£¡ 2010-12-13 20:43:27
ajian04(½ð±Ò+1):лл~ 2010-12-13 21:58:14
aÊÇÊý×éÃû£¬´ú±íÁËÊý×éÔªËØµÄÊ×µØÖ·£¬ËùÒÔa+jºÍa+kÊÇÊý×éµÄµÚj¸öºÍµÚk¸öÔªËØµÄµØÖ·£¬Óëswapº¯ÊýµÄÐÎʽ²ÎÊýÀàÐÍÆ¥Å䣨ָÕëÀàÐÍ£©¡£¶øa[j]ºÍa[k]µÈ¼ÛÓÚ*(a+j)ºÍ*(a+k)£¬¾ÍÊǵÚjºÍµÚk¸öÔªËØ£¬ÓëÐβÎÀàÐͲ»Æ¥Åä¡£
2Â¥2010-12-13 20:12:18
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zyj8119

ľ³æ (ÖøÃûдÊÖ)


ÒýÓûØÌû:
Originally posted by smart0193 at 2010-12-13 20:12:18:
aÊÇÊý×éÃû£¬´ú±íÁËÊý×éÔªËØµÄÊ×µØÖ·£¬ËùÒÔa+jºÍa+kÊÇÊý×éµÄµÚj¸öºÍµÚk¸öÔªËØµÄµØÖ·£¬Óëswapº¯ÊýµÄÐÎʽ²ÎÊýÀàÐÍÆ¥Å䣨ָÕëÀàÐÍ£©¡£¶øa[j]ºÍa[k]µÈ¼ÛÓÚ*(a+j)ºÍ*(a+k)£¬¾ÍÊǵÚjºÍµÚk¸öÔªËØ£¬ÓëÐβÎÀàÐͲ»Æ¥Åä¡£

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