Symmetric matrix by eha

a[99];i,j,w,v;main(c){for(;v?c=32,j-w:scanf("%d%c",a+i,&c);v=c<11?w=w?:i,++j:v)printf("%d%c",a[v?j+(j-v)*(w+w+~j+v--)/2:i++],c);}

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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