#include<stdio.h>
void main(){
int i, a[3][3]={1,2,3,4,5,6,7,8,9};
int zhu, fu;//主对角线,副对角线;
zhu = a[0][0];
fu = a[2][0];
for(i=1; i<3; i++){
if(zhu<a[i][i])
zhu = a[i][i];//主对角线最大
if(fu<a[3-1-i][i])
fu = a[3-1-i][i];//副对角线最大
}
printf("%d\t%d\n",zhu,fu);
}
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