好基础的面试题

-----*----- 6 1 0 6
----*-*---- 5 7 2 1 5 7
---*-*-*--- 4 6 8 3 2 4 6 8
--*-*-*-*-- 3 5 7 9 4 3 3 5 7 9

-*-*-*-*-*- 2 4 6 8 10 5 4 2 4 6 8 10

#include <stdio.h>
int main(void){
int r=6,c=12;
int i,j,k;
printf("start \n");
for(i=1;i<r;i++){
for(j=1;j<r-i+1;j++){
printf(" ");
}
for(j=0;j<i;j++){
printf("*");
printf(" ");
}
printf("\n");
}
}

 

冒泡

public static void main(String[] args) {

int A[] = { 2, 3, 1, 4, 6, 7, 5, 8, 9, 10 };
for (int i = 0; i < 9; i++) {
int temp;
for (int j = 9; j > i; j--) {
System.out.println(A[i] + " === " + A[j]);
if (A[i] > A[j]) {
temp = A[i];
A[i] = A[j];
A[j] = temp;
}
System.out.println(A[i] + " +++++ " + A[j]);
}


}


for (int i = 0; i < 9; i++) {
System.out.println("" + A[i]);
}


}


}