题目内容
#includevoid main(){int i,j,s=0;int a[4][4]={1,2,3,4,0,2,4,6,3,6,9,12,3,2,1,0};for(j=0;j<4;j++){i=j;if(i>2) i=3-j;s+=a[i][j];}printf("%d\n",s);}
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