题解 | 冒泡排序
boolean flag;
for(int i = 0; i < arr.length-1; i++) {
flag = false;
for(int j = 0; j < arr.length-1-i; j++) {
if(arr[j] > arr[j+1]) {
int temp = arr[j];
arr[j] = arr[j+1];
arr[j+1] = temp;
flag = true;
}
}
if(!flag) {break;}
}
boolean flag;
for(int i = 0; i < arr.length-1; i++) {
flag = false;
for(int j = 0; j < arr.length-1-i; j++) {
if(arr[j] > arr[j+1]) {
int temp = arr[j];
arr[j] = arr[j+1];
arr[j+1] = temp;
flag = true;
}
}
if(!flag) {break;}
}
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