int arr[20]={7,1,4,2,6,20,15,3,8,5,9,19,11,12,16,17,14,18,13,10};int max=0,min=99999,sum=0,maxIndex,minIndex; for(int x=0;xmax){ max=arr[x]; maxIndex=x;}if(arr[x]int main(){int a[4][5],i,j;int max(int a[4][5]);int min(int a[4][5]);int aver(int a[4][5]);for(i=0;i<4;i++)for(j=0;j<5;j++)scanf("%d",&a[j]);... |