随机--相关(Fisher_Yates算法)
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void ShuffleArray_Fisher_Yates(char* arr, int len) { int i = len, j; char temp; if ( i == 0 ) return; while ( --i ) { j = rand() % (i+1); temp = arr[i]; arr[i] = arr[j]; arr[j] = temp; } } |

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