intChickenRabbit(int* chicken,int* rabbit,int head,int foot){
int i;int j;if(foot %2!=0&& head <0&& foot <0){
return0;}for(i =0; i <= head; i++){
j = head - i;if(i *2+ j *4== foot){
*chicken = i;*rabbit = j;return1;}}return0;}
6-2 冒泡排序
voidbubble(int a[],int n){
int i, j;for(i =0; i < n -1; i++){
int flag =1;for(j =0; j < n - i -1; j++){
if(a[j]> a[j +1]){
int tmp = a[j];
a[j]= a[j +1];
a[j +1]= tmp;
flag =0;}}if(flag ==1)break;