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#include "stdio.h"#define N 5void main(){int a[N];int i;int max;int min;int totle=0;int average;for(i=0;i<N;i++){scanf("%d",&a[i]);}for(i=0;i<N;i++){printf("%d ",a[i]);}for (i=0;i<N;i++){printf("%d ",a[N-1-i]);}max=a[0];for(i=0;i<5;i++)if(max<a[i]){max=a[i];}printf("\nthe MAX is %d ",max);min=a[0];for(i=0;i<5;i++)if(min>a[i]){min=a[i];}printf("\nthe MIN is %d ",min);for(i=0;i<5;i++){totle+=a[i];}printf("\nthe add is %d",totle);average=totle/N;printf("\nthe AVERAGE is %d",average);}2
#include "stdio.h"#define ROW 2 #define COL 3 main() { int a[ROW][COL]={1,2,3,4,5,6}; int b[ROW][COL]={{1,2,3},{4,5,6}}; int i,j; printf("row first:\n"); for(i=0;i<ROW;i++) { for(j=0;j<COL;j++){ printf("%d ",a[i][j]); } printf("\n"); } printf("column first:\n"); for(i=0;i<COL;i++) { for(j=0;j<ROW;j++){ printf("%d ",a[j][i]); } printf("\n"); } }3
#include "stdio.h" main() { char a[20]; char b; printf("please input your string: "); gets(a); printf("\nYour input is: "); puts(a); /*the second a[1] */ b = a[1]; if(b >= 'A' && b <= 'Z') a[1] = a[1] + 'b' -'B'; else if(b >= 'a' && b <= 'z') a[1] = a[1] + 'B' -'b'; else a[1] = ' '; printf("\n After change: "); puts(a); } 4
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